Machine Design and Shop Practice
Machine Design
Elements
Chuck used on turret lathe is
A. collet chuck
B. four jaw self centering chuck
C. Magnetic Chuck
D. Three jaw independent chuck
Answer: D
Angle plate is used for
A.
cutting gears in a shaper
B. cutting gears in a milling
C. cutting tapers in a lathe
D. fixing job cut angles is grinder
Answer:
A
For machining the flange of
90 elbow on a lathe, which of the following device is used?
A.
Angle plate
B. Catch Plate
C. Face Plate
D. Lathe plate
Answer:
C
Angle Plate is used for
A. cutting gears in a shaper
B. cutting gears in a milling
C. cutting tapers in a lathe
D. fixing job cut angles is a grinder
Answer A
A sine bar can not be used
without a/ an
A. angle gage
B. micrometer
C. slip gage
D. vernier caliper
Answer:
A
The operation of finishing a
drilled hole to the correct size is known as
A.
counting boring
B. counter sinking
C. reaming
D. spot facing
Answer:
C
Carbon steel drill should be operated
at
A.
speed less than that when using a high speed drill
B. speed greater than that when using a high speed drill
C. the different speed as that when using high speed drill
D. the same speed as that when using a high speed drill
Answer: B
When cutting material in a
lathe, the harder the material being cut, the tool bit should have
A.
less side rake
B. more side rake
C. more top rake
D. no side rake
Answer:
A
On xx heavy pipe the extra
metal is added in the
A.
outside
B. inside
C. half on the inside, half on the outside
D. three quarters on the outside, one quarter on the inside
Answer: B
Valve seats are usually:
A.
screwed in
B. dropped in
C. pressure in
D. A or C
Answer:
D
When grinding in valves the
disc is secured to the stem by:
A.
inserting a cotter pin
B. placing emery cloth between stem and disc
C. welding
D. A or B
Answer:
D
A fresh-water tank is located
at the top. What will the pressure on it outlet in the engine room 50’ below
the tank?
A.
20 psi
B. 21.7 psi
C. 23 psi
D. 25 psi
Answer:
B
In a duplex reciprocating
pump:
A.
the slide valve for the one cylinder is controlled in the piston of the other
cylinder
B.both slide valves operate
simultaneously
C. each slide valve is controlled by its own piston rod
D. one slide valve operates the other slide valve
Answer:
A
The jerky operation of a
reciprocating pump may be caused by
A.
small leaks in the suction line
B. suction valve only partially open
C. dirty suction valve
D. any of the above
Answer:
D
It is used in the production of
the flat surface on pieces two large or too heavy to hold in a shaper.
A.
Grinder
B. Planer
C. Shaper
D. Shaver
Answer:
B
A machine tool used to
produce a variety of surface of surfaces by using a circular type cutter with
multiple teeth called
A.
broaching machine
B. grinding
C. lathe machine
D. milling machine
Answer
D
Cutting tool used to finish
internal and external surfaces by the use of cutter called a broach, which has
a series of cutting edges of teeth.
A.
Broaching machine
B. Lathe machine
C. Planer
D. Shaper
Answer:
A
Group of thin steel strips
used for measuring clearances.
A.
Tachometer
B. Micrometer
C. Feeler gage
D. Caliper
Answer
C
Bind of chuck, which should
not be used where accuracy desired called
A.
collet chuck
B. four jaw shuck
C. magnetic chuck
D. universal chuck
Answer
D
The process used to retard
compression trust on iron pipe and fitting is called:
A.
timming
B. soldering
C. galvanizing
D. sulphurizing
Answer:
C
The system used for breaking
scale from the evaporator coils while the evaporator is in operation is called:
A.
recirculating
B. blowing-down
C. cracking-off
D. dumping
Answer:
C
The coils in the evaporator
are attached to the headers by:
A.
pipe nipples
B. union – type fitting
C. welding
D. bolted flanges
Answers:
B
When distilling salt water
the cooling – water discharge from the distiller is fed back to the evaporator
as feedwater:
A.
to cut down on the amount of cooling water needed
B. to prevent n excess amount of cooling water from being discharge to the
bilges
C. to supply hot water to the evaporator for more economical operation
D. none of the above
Answer:
C
An “offset” in pipe fitting
refers to:
A. a
cut-off running at right angles to the original piping
B. two pipes running parallel to each other
C. a bend in the pipe
D. two sizes of pipe in the same run
Answer:
C
If a piston-type flush valve
is not operating properly, the most likely cause would be:
A. a
plugged by – pass hole
B. a cracked diaphragm
C. a stuck pilot valve
D. any of the above
Answer:
A
Before installing a new
flange gasket be sure that the:
A.
flange faces are painted
B. isolating valves are open
C. flange faces are absolutely clean
D. old gasket is in place
Answer:
C
What is a standard wire gage:
A.
#10 larger
B. #25 is smaller than #20
C. # 1 is smaller than # 2
D. # 30 is larger than # 25
Answer:
B
Which of the following tools
would be most useful when taking leads on bearings
A.
dividers
B. outside calipers
C. micrometer
D. center gage
Answer:
C
The wrench size for a ¼” nut is:
A.
1-1/4
B. 1-1/2
C. 3/4
D. 10/24
Answer:
A
Which of the following would cause hot
bearings?
A.
improper oil
B. dirt in oil
C. improper alignment
D. all of the above
Answer:
D
Melting point of Babbit is
approximately:
A.
1000 deg. F
B. 650 deg. F
C. 750 deg. F
D. 500 deg. F
Answer:
B
What is pouring Babbit in:
A.can
be poured in several pourings
B. must be poured all at one time
C. can be done at intervals
D. must be done in cool place
Answer:
B
A machine tool, which is very
similar to a shaper except the ram reciprocals vertically rather that
horizontally
A.
Lathe
B. Grinder
C. Planer
D. Slotter
Answer
D
The operation of machining
the end of a work piece to make a SQUARE with the axis.
A. Buffing
B. Honing
C. Lapping
D. Squaring
Answer:
D
The operation of enlarging a
hole by means of an adjustable cutting tool with only one cutting edge.
A. Boring
B. Broaching
C. Drilling
D.
Milling
Answer:
A
It is used to true and align
machine tools fixtures and works is at and inspect size trueness of finished
work, and to compare measurements either heights or depths or many other
measurements.
A.
Dial Gage
B. Dial Indicator
C. Tachometer
D. Speedometer
Answer:
B
A tool used for measuring
diameters.
A.
Caliper
B. Manometer
C. Tachometer
D. Pyrometer
Answer: A
A process of forming metals
by the use of dies after the metal is forced to its plastic range.
A.
Casting
B. Forging
C. Rolling
D. Turning
Answer:
C
Which of the following does
not have to be lubricated when drilling?
A. Steel
B. Brass
C. Monel
D. Tool Steel
Answer:
B
The tool to use when cutting
a hole in the side of a round piece of metal is called a:
A.
vine
B. jaw holder
C. “V” block
D. chuck
Answer:
C
When measuring a drill for
size measure across the:
A.
margin
B. flutes
C. shank
D. point
Answer:
A
The tool used in precision
work to smooth or enlarge holes is called a:
A.
round out
B. drift pin
C. reamer
D. protractor
Answer:
C
Which of the following
chisels would be used for cutting oil grooves?
A.
diamond-point chisel
B. cold chisel
C. round-nose chisel
D. hot chisel
Answer:
C
Test sometimes referred to as
upsetting test called
A.
bend
B. crush
C. flange
D. flaring
Answer:
A
A mechanism, which usually
does the indexing in a machine tool is called:
A.
dividing head
B. indexing
C. slotter
D. universal chuck
Answer:
A
Recommended best cutting
angle of drill for work on steel or cast iron is ______ degrees
A.
48
B. 50
C. 59
D. 63
Answer: C
What is the common shop
practice to prevent soldering from running away from surface to be joined?
A.
All of these
B. Introduce around the work rolled wet cloth
C. Put asbestos sheeting around the work
D. Surround the work with clay
Answer:
A
A machinery operation where
by done with the work accurately fastened has a reciprocating motion and the
tool head is stationary is called:
A.
planning
B. reaming
C. shaping
D. turning
Answer:
A
The process used to retard
corrosion on iron pipe is called:
A.
soldering
B. annealing
C. tempering
D. galvanizing
Answer:
D
Which of the following tools
does not belong to the group?
A.
Divides
B. Double VEE block
C. Caliper
D. Trammel
Answer:
B
In machine shop had forging
operation of lengthening a piece of stock while reducing the cross-sectional
area of work is called:
A.
bloating
B. draining
C. spreading
D. upsetting
Answer:
D
Which of the following
services is not considered to be a work of a machinist?
A.
grinding
B. Honing
C. Overhauling
D. Reboring
Answer:
C
Common defects encountered in
the foundry shop steel casting operation and also in welding practices
A.
Blow / pin holes
B. Cold shot
C. Cracks
D. Parting line
Answers:
A
Lathe operator to remove the
taper shank from the taper hole drift. It is also called:
A.
chuck taper
B. Morse taper
C. tapered key
D. tong
Answer:
B
A tap or die marked ¼-20
indicates:
A. ¼
radius – 20 cm. long
B. ¼ radian – 20 threads per in.
C. ¼ diameter – 20 threads per in.
D. ¼ turn – 20 times
Answer: C
After a piece of pipe has
been cut, the hole is cleaned out with a:
A.
piper reamer
B. pipe cleaner
C. pipe taper
D. hole cleaner
Answer:
A
The tool used for cutting
pipe threads is called a:
A.
pipe cutter
B. pipe stock and die
C. pipe threader
D. pipe ratcher cutter
Answer:
B
The tool used when working
with larger sizes of pipe is called a:
A.
chain pipe wrench
B. chain tongs
C. chain holder
D. A or B
Answer:
D
The tool used when preparing
to put fittings on copper tubing is called a:
A.
tube spreader
B. flaring tool
C. tube retarder
D. tube countersink
Answer:
B
Which of the following is not
a standard thread form?
A.
Square
B. American national
C. Double Flute
D. 60 deg. Sharp V
Answer:
C
When turning a piece of round
metal in a lathe, the front clearance should be smaller for:
A.
large-diameter cutting
B. small-diameter cutting
C. cutting angles
D. none of the above
Answer:
B
When cutting material in a
lathe, the harder the material being cut, the tool bit should have:
A.
more side rake
B. less side rake
C. more top rake
D. no side rake
Answer:
B
Knurling is done to:
A.
smooth material
B. polish material
C. roughen material
D. sharpen material
Answer:
C
Removing the sharp edges from
a piece of stock is referred to as:
A.
knurling
B. chamfering
C. planning
D. turning
Answer: B
Carbon steel drills should be
operated at:
A.
speeds greater than that when using a high-speed drill
B. speeds less than that when using a high-speed drill
C. the same speed as that when using a high-speed drill
D. none of the above
Answer:
B
When extreme outer corners of
the cutting edges of a drill were away too rapidly, it is an indication of:
A.
not enough speed
B. too much rake angle
C. too high speed
D. B or C
Answer:
D
It is an operation of
stretching or spreading over the metal by means of the plane of the hammer.
A.
Bending
B. Peening
C. Swaging
D. Upsetting
Answer:
B
The good quality of a
measuring tool
A.
should be easy to handle
B. should be easy to read
C. should be wear resistance
D. all of the above
Answer:
D
The flatness of surface can
be checked
A.
by using straight edge
B. by using surface plate
C. by using dial test indicator
D. all of the above
Answer:
D
A holding device which is
used to hold or grip work piece, while filling, chipping or any other bench
work or while machining or drilling them
A.
clamp
B. grid
C. pressed
D. vise
Answer: D
A multi pointed hand anything
tool used to removed material from metallic and non-metallic work pieces to
match with drawing, shape and size.
A.
Cold chisel
B. File
C. Hacksaw
D. Hammer
Answer:
B
A
side-cutting tool used for accurately finishing the straight or tapered holes
already drilled or bored.
A.
Peering
B. Reamer
C. Swaging
D. Tapping
Answer:
B
If the angle on a drill is
less than 59 deg.:
A.
the drill will make a large hole
B. the drill will make a smaller hole
C. the hole will take longer to drill and more power is required to drive the
drill
D. the drill will not center properly
Answer:
C
Soda added to water is used
for cooling instead of plain water because:
A.
it reduces the amount of heat generated
B. it improves the finish
C. it overcome rusting
D. all of the above
Answer:
D
If a drill speed is too
great, it will:
A.
cut faster
B. lose its temper
C. cut slower
D. not cut
Answer:
B
The lip clearance of a drill
should be approximately:
A.
20 deg. – 25 deg.
B. 5 deg. – 10 deg.
C. 12 deg. – 15 deg.
D. 15 deg. – 20 deg.
Answer:
C
If the cutting edges of a
drill are cut at different angles:
A.
the drill will not cut
B. the hole will be larger than the drill
C. the hole will be smaller than the drill
D. none of the above
Answer: B
The correct cutting angle on
a drill for ordinary work is:
A.
45 deg.
B. 50 deg.
C. 59 deg.
D. 65 deg.
Answer:
C
Which of the following gives
greater hardness, cutting toughness and dine grain structure?
A.
Chromium
B. Nickel
C. Tungsten
D. Vanadium
Answer: A
It is a process to impact
maximum hardness to the steel part.
A.
Annealing
B. Hardening
C. Normalizing
D. Tempering
Answer:
B
The size by which it is
referred to as a matter of convenience called:
A.
actual size
B. basic size
C. effective size
D. nominal size
Answer:
D
The relation between two
mating parts with reference to ease the assembly is called
A.
allowance
B. clearance
C. tolerance
D. fits
Answer:
D
It is an operation of
finishing cylindrical surfaces to a fine degree of accuracy by means of
abrasive sticks.
A. Honing
B. Lapping
C. Planing
D. Shaping
Answer: A
It is device, which hold the
job in position and guide the cutting tool.
A.
clamp
B. grip
C. jig
D. vise
Answer:
C
In referring to threads,
“pitch” is:
A. the distance of the full
length of the thread
B. the distance from a point on one thread to a corresponding point on the next
thread measured parallel to the axis
C. the distance from the top of one thread to the bottom of the next thread
D. the distance from the bottom of a head on a bolt to the first thread
Answer:
B
A tool bit for cutting an
American National thread should be ground with a:
A.
45 deg. angle
B. 90 deg. angle
C. 60 deg. angle
D. 30 deg. angle
Answer: C
An approximate safe rule for
cutting new piston rings for steam pumps is to make the ring:
A. .002”
between piston and cylindrical for each inch diameter of piston
B. .001” between piston and cylinder for each inch diameter
C. .010 between piston and cylinder for each inch diameter of piston
D. .0001” between piston and cylinder for each inch diameter of piston
Answer:
B
An approximate safe rule for
cutting new piston rings for steam pumps is to make the ring:
A.
1/32” larger in diameter per inch diameter of cylinder
B. 1/16” larger in diameter than that of the cylinder
C. 1/16” larger in diameter per inch diameter of cylinder
D. .005” larger in diameter per inch diameter of cylinder
Answer:
C
The gap clearance for new
piston rings for steam pumps should be approximately:
A.
.003” for each inch diameter of cylinder
B. .001” for each inch diameter of cylinder
C. .010” for each inch diameter of cylinder
D. .050” for each inch diameter of cylinder
Answer:
A
What does 3/8 – 16 mean to
you?
A. 16 pieces, 3/8 “ long
B. gear with 16 teeth and a 3/8”
arbor hole
C. 3/8” square, 16” long
D. 3/8” diameter. 16 threads per
inch
Answer:
D
Tapered shanks are used on
large drill presses so that:
A.
the drill can be centered more easily
B. the drill can be easily forced out of the sleeve with a drift
C. the shank will not turn when cutting
D. the shank can be reground when worn
Answer:
B
Which of the following is not
a common drill shank?
A.
straight
B. taper
C. fluted
D. bit
Answer:
C
The cutting angle on a drill
for drilling mild steel should be:
A.
39 deg.
B. 49 deg.
C. 59 deg.
D. 69 deg.
Answer:
C
A device used to fix two or
more parts.
A.
clamp
B. fastener
C. fixtures
D. jigs
Answer:
B
A machine element inserted
parallel to the axis of a shaft.
A.
cutter
B. fastener
C. key
D. reamer
Answer:
C
A machine element inserted at
right angle to the axis of shaft is known as
A.
clamp
B. cutter
C. fastener
D. key
Answer:
B
The process of extracting
iron in a blast furnace is called
A.
casting
B. manufacturing
C. smelting
D. sintering
Answer:
C
Which of the following is a
product of blast furnace?
A.
cast iron
B. gray iron
C. pig iron
D. wrought iron
Answer:
C
A product of paddling furnace
which contains less than 0.104 carbon, is called
A.
cast iron
B. gray cast iron
C. pig iron
D. wrought iron
Answer:
D
Which of the following is a
property of wrought iron?
A.
brittle
B. cannot be forged
C. can be easily cast into different shapes
D. ductile
Answer:
D
A piece of stock 8’’ long is
4” diameter on one end and 1” diameter on the other end. The taper per foot is:
A.
4”
B. 4 -1/2”
C. 4 -1/4”
D. 4 -1/16”
Answer:
B
A piece of stock 8” long is
3” diameter at one end and 1 – ½” diameter at the other end. The taper per inch
is:
A.
½”
B. ¼”
C. 3/16”
D. 5/16”
Answer:
C
A piece of stock 6” long is
2” diameter at one end and is cut with a taper of ½” to the foot. The diameter
of the smaller end will be:
A. 1
– ½’
B. 1 – ¾’
C. 1 - ¼’
D. 2”
Answer:
B
If a piston ring is to be
made 1/64” larger in diameter per inch diameter of the cylinder which it is to
fit, the required diameter for a piston ring to fit an 8” cylinder will be:
A. 8
– ¼”
B. 8 - 1/8”
C. 8 – 3/16”
D. 8 – 5/32”
Answer:
B
When cutting. A drill will
“squeal” due to:
A.
drill being ground improperly
B. drill being too hot
C. insufficient lubrication
D. any of the above
Answer:
D
“Center drilling” is the
operation of:
A.
drilling a center in an odd-shaped piece of metal
B. drilling and countersinking with one tool
C. centering with one tool and drilling with another
D. drilling a center in a piece of stock in a drill press
Answer:
B
The type and number of
bearings to be used for spindles of machine tool depend on
A.
type of spindle
B. type of machine tool
C. load on the ring
D. load on the bearing
Answer:
D
Which of the following has
its angle 30 and is used for dotting after marking the lines on general works?
A.
center punch
B. dot punch
C. hollow punch
D. prick punch
Answer:
D
Which of the following has
its angle 60 and is used for dotting after marking the lines on general works?
A.
center punch
B. dot punch
C. hollow punch
D. prick punch
Answer:
B
Which of the following has
its angle 90 and is used to give deep marks for the location of drill?
A.
center punch
B. dot punch
C. hollow punch
D. prick punch
Answer:
A
It is used on soft metals and
non-metals for making holes.
A.
center punch
B. dot punch
C. hollow punch
D. prick punch
Answer:
C
Reason why cast iron selected
for the manufacture of surface of surface plate
A.
it is cheaper
B. it is easy for machinery
C. it has less wear and tear
D. all of the above
Answer:
D
The common measuring tools
are
A.
micrometer
B. steel rule
C. vernier caliper
D. all of the above
Answer:
D
Which of the following is not
a kind of mandrel?
A.
contraction
B. expanded
C. extended
D. taper
Answer:
A
An act of cutting out a piece
of metal at a desired shape and size is known as
A.
blanking
B. broaching
C. dinking
D. slitting
Answer:
A
Safety features that must be
placed and maintained at machine, black smith welding and foundry shops called
A.
safety goggles
B. safety notices
C. safety notices in markers / boards
D. walkway shops
Answer:
C
In
cutting tool the cutting end can also be generally called
A.
back rake
B. end cutting edge
C. nose
D. side rake
Answers:
C
A machine shop equipment that
can flatter horizontally, vertically or angular plane called
A.
drill machine
B. power saw
C. shaper machine
D. welding machine
Answer:
C
Which of the following is an
unsafe condition in operating a lathe machine?
A.
operating with safety gloves
B. wearing a canvass apron
C. wearing denim pants / safety shoes
D. wearing safety goggles / hearing aid
Answer:
B
The instrument used to remove
old packing from packing glands and stuffing boxes are called:
A.
packing tools
B. packing bits
C. gland box cleaners
D. packing screws
Answer:
A
When working on bearing and
checking for high spots, it is customary to apply:
A.
white lead
B. red lead
C. dykem blue
D. Prussian blue
Answer:
D
If you wanted to check the
face of a pump slide valve or other flat –face valve, you would check for
trueness on a:
A.
flat board
B. surface plate
C. piece of glass
D. bearing plate
Answer:
B
To keep a metal clean while
soldering, one would use a:
A.
flax
B. torch
C. flux
D. insulated
Answer:
C
Before splicing electric
wires, they should be:
A.
tinned
B. cleaned and tinned
C. soldered
D. insulated
Answer: B
To check the speed of a motor
or other rotary machine, one would
A.
speed indicator
B. micrometer
C. tachometer
D. A or C
Answer:
D
It is the best instrument for
measuring a thousandth of an inch
A.
Caliper
B. Micrometer
C. Pyrometer
D. Tachometer
Answer:
B
What tool will be used in
making wood pattern in the foundry shop?
A.
Sand saw
B. Drill machine
C. Hammer
D. Saw and chisel
Answer:
D
Machine tool used for laying
straight lines on metal surfaces made of sharp tool steel is called
A.
divider
B. hermaphrodite caliper
C. plain scriber
D. trammel
Answer:
C
A lathe machine threading
mechanism is called
A.
anvil
B. changed stud gear
C. reverse gear and lever
D. spindle gear
Answer:
D
Which of the following is not
used to resemble the shape of tool bit?
A. center
cut
B. round nose
C. square nose
D. thread cutting
Answer:
A
A lathe with multiple cutting
stations called:
A.
engine lathe
B. manual lathe
C. semi-manual lathe
D. turret lathe
Answer:
D
Device
used to measure accurately speed called
A.
dial gage
B. dial indicator
C. speedometer
D. tachometer
Answer:
D
A pipe wrench (Stilleon) is
designed for use on:
A.
hexagonal objects
B. round objects
C. square objects
D. flat objects
Answer:
B
Pipe is measured by:
A.
inside diameter
B. outside diameter
C. thickness of wall
D. wire gage
Answer:
A
Tubing is measured by:
A.
inside diameter
B. outside diameter
C. thickness of wall
D. wire gage
Answer:
B
“Water Hammer” is caused by:
A.
hitting water pipe with hammer
B. too much water in pipe system
C. water in steam line
D. steam in water line
Answer:
C
Insulation is used on piping
to:
A.
held in heat
B. held in cold
C. cut down heat losses
D. steam in water line
Answer:
C
It is a machine used for the
testing of very thin steel or surface layers.
A.
Charpy test
B. Description test
C. Izod test
D. Rockwell test
Answer:
D
It is a test for pipe used
for coiling in sizes 2 inches.
A.
bend
B. crush
C. flange
D. flaring
Answer:
A
Milling machine accessories
are used to hold milling cutter in the milling machine called:
A.
milling machine arbors
B. milling machine size
C. spindle – nose tooling
D. vertical milling attachment
Answer:
A
Important accessories of
milling machine.
A.
cutters
B. milling machine vise
C. ram
D. vertical milling attachment
Answer:
A
The machine, which can
flatter surface on horizontal, vertical or angular plane.
A.
drilling machine
B. lathe machine
C. power saw
D. shaper machine
Answer:
D
Which of the following is not
part on a lathe machine?
A.
carriage
B. fan
C. headstock
D. tail stock
Answer:
B
Which tools does not belong
to the group?
A.
adjustable wrench
B. feeler gage
C. torque wrench
D. vice grip
Answer:
B
The
tool used to cut threads in a hole is called a:
A.
top
B. tap
C. bit
D. reamer
Answer: B
Hand taps are provided in
sets of three called:
A.
taper, plug and end
B. short, taper and bottom
C. taper, plug and bottom
D. short, medium and long
Answer:
C
Which of the following taps
should be used to start a thread?
A.
plug
B. short
C. bottom
D. taper
Answer:
D
When preparing to tap a hole,
the size of the drill will be:
A.
equal to the size of the tap
B. larger than the size of the tap
C. smaller than the size of the tap
D. none of the above
Answer:
C
Pipe taps are:
A.
the same size from end to end
B. not fluted
C. tapered
D. not hardened
Answer:
C
When preparing to tap a hole
for a pipe fitting the size of the drill will be:
A.
larger than the tap size
B. equal to the size of the tap
C. smaller than the tap size
D. none of the above
Answer: A
A machine tool used to out
metal parts a lift, medium and large section using a reciprocating hacksaw
blade.
A.
planer
B.power saw
C. shaper
D. tool grinder
Answer:
B
A cold chisel is made of
A.
cast iron
B.german silver
C. high carbon silver
D. high speed steel
Answer:
C
Trimming is a process
associated with
A.
electroplating
B. forging
C. machining of metals
D. press work
Answer:
B
A twist drill is specified by
A.
its diameter and lip angle
B. it shank and diameter
C. shank, material and diameter
D. shank, material and flute size
Answer:
C
The usual value of helix
angle of a drill is:
A.
30*
B. 60*
C. 110*
D. 120*
Answer:
A
The helix angle on a
high-speed steel twist drill for drilling cast iron if of the order of
A.
12-22
B. 24-32
C. 35-40
D. 40-45
Answer:
B
Wiping is the process of
A.
applying flux during welding process
B. cleaning the welded surface after the welding operation is over
C. connecting load pipes by soldering
alloy
D. low temperature welding
Answer:
C
Which of the following is not
a cut of file?
A.
smooth
B. second cut
C. half-round
D. bastard
Answers:
C
The tool used for cleaning
files is called a:
A.
file cleaner
B. file card
C. file oilstone
D. scraper
Answer:
B
Which of the following is the
smallest size drill?
A. #
80
B. # 60
C. # 1
D. # 0
Answer:
A
Which of the following is the
largest size drill?
A. A
B. X
C. Z
D. XX
Answer: C
The size of drill is stamped
on the:
A.
point
B. shank
C. margin
D. flute
Answer:
B
Which of the following safety
precautions should be followed when pouring Babbitt?
A.
operator must wear goggles
B. the surface to be babbitted must be free of moisture
C. the surface to be babbitted must be clean
D. all of the above
Answer:
D
In up cut milling the work
piece is fed
A.
against the rotating cutter
B. at an angle of 60* to the cutter
C. at right angle to the cutter
D. in the direction of the cutter
Answer:
A
Which of the following safety
precaution should be followed when renewing a flange gasket?
A.
drain the line thoroughly
B. isolate the section to be worked on
C. tie down isolation valves
D. all of the above
Answer:
D
Brazing requires:
A.
hard solder
B. soft solder
C. more heat
D. A and C
Answer:
D
Lead is used in solder
because:
A.
it has a high melting point
B. it has a low melting point
C. it is cheap
D. B and C
Answer:
D
The name of the taper shank
used on drills is:
A.
Miller
B. Morse
C. Starret
D. Stanley
Answer:
B
The higher the melting point
of the solder, the:
A.
weaker the solder joint
B. softer the solder joint
C. stronger the solder joint
D. harder the solder joint
Answer:
C
A machining operation whereby
the tool reciprocates and the feed is stationary.
A.
Planing
B. Reaming
C. Shaping
D. Turning
Answer:
C
The kind of center, which is
being attached and meshed to the tailstock spindle, which is also static while
the work, is rotating, is known as:
A.
dead center
B. focal center
C. live center
D. work center
Answer:
A
A machine tool in which an
abrasive wheel is used as a cutting tool to obtain a very smooth finish.
A.
Broaching machine
B. Milling Machine
C. Planer
D. Tool Grinder
Answer:
D
A machine too used
principally to machine flat or plane surfaces with a single pointed tool.
A.
Drill
B. Planer
C. Power Saw
D. Shaper
Answer:
D
A tool with hardened steel
point used for scribing or laying of distances.
A.
Divider
B. Hermaphrodite
C. Plain scriber
D. Trammel
Answer:
A
The cylinder of piston type
steam engine are counterbored to:
A.
give a larger head clearance
B. prevent piston rings from wearing a groove in the cylinder at the end of the
stroke
C. give a larger volumetric clearance
D. prevent piston rings from slipping on the piston
Answer:
B
When installing packing in a
packing box:
A.
leave one old turn at the bottom of the packing box
B. remove one turn and install one new turn of packing
C. leave sufficient end clearance on each turn to allow for expansion
D. place and cuts directly in line with each other
Answer:
C
An instrument consisting of a
wet – and dry – bulb thermometer (used in air conditioning) is called a:
A.
hygrometer
B. pyrometer
C. psychrometer
D. A or C
Answer:
D
Sheet metal of # 18 gage is
heavier than:
A.
12 gage
B. 14 gage
C. 22 gage
D. 16 gage
Answer: C
Shims are used to:
A.
separate fresh – and salt – water lines
B. replace fuses
C. adjust cylinder liners
D. adjust bearing clearances
Answer:
D
Quick return motion is used
in a
A.
drilling machine
B. grinder
C. lathe
D. shaper
Answer:
D
The operation of enlarging a
hole is called
A.
boring
B. counter sinking
C. drilling
D. reaming
Answer:
A
Rapping allowance is provided
on a patter to take care of
A.
distortion
B. easy withdrawal
C. machining
D. shrinkage
Answer:
B
Feeler gage are used for
measuring the
A.
clearance between mating parts
B. pitch of screw threads
C. radius of curvature
D. thickness of plates
Answer:
A
The hacksaw blade should be
placed in the frame with:
A.
the teeth pointing forward
B.
the teeth pointing backward
C.
one end looser than the other end
D.
the teeth facing in any direction
Answer:
A
When cutting a long thin
piece of metal:
A.
turn the blade upside down the frame
B.
turn the blade at right angles to the frame
C.
use a blade with fewer teeth per inch
D.
set the blade in the frame with the teeth facing you
Answer:
B
A hacksaw blade with 18 teeth
per inch is best suited for cutting:
A.
solid stock
B.
cast iron
C.
aluminum
D.
any of the above
Answer:
D
A coolant is usually used
when cutting material in a power hacksaw to
A.
absorb the heat of friction
B.
prevent the blade from overheating
C.
prevent the blade from losing its temper
D.
all of the above
Answer:
D
A hacksaw blade with 32 TPI
is suited for cutting:
A.
small tubing
B.
conduct
C.
sheet metal under 18 gage
D.
any of the above
Answer:
D
For filing lead or Babbitt,
use a:
A.
vixen file
B.
mill file
C.
sheet metal under 18 gage
D. any
of the above
Answer:
D
It moves on the lathe bed
with cutting tool according to the rotation of lead screw or by hand traversing
wheel
A.
apron
B.
compound rest
C.
mandrel
D.
saddle
Answer:
D
It acts the carriage or
compound rest through the mechanism lifted inside the apron
A.
apron
B.
compound
C.
mandrel
D.
saddle
Answer:
A
It gives the cutting tool
longitudinal feed, cross feed or
carriers
A.
angular feed
B.
apron
C.
compound rest
D.
saddle
Answer:
C
The center, which is fitted
in head stock spindle, called
A.
above center
B.
below center
C.
dead center
D.
live center
Answer:
D
A center, which is fitted in
tail stock spindle called
A.
above center
B.
below center
C.
dead center
D.
live center
Answer:
C
Which of the following gives
shearing action?
A.
front clearance
B.
side clearance
C.
slide rake
D.
top rake
Answer:
D
Which of the ff. information
is necessary when ordering a file?
A.
size (length)
B.
shape
C.
type of teeth
D.
all of the above
Answer:
D
Never use a file:
A.
that is dirty
B.
w/o a handle
C.
w/o oiling
D.
with a tang
Answer:
B
The best file to use when
finishing sharp corners or slots and grooves is the:
A.
mill file
B.
square
C.
knife file
D.
jewelers file
Answer:
C
On a lathe the dead center is
used after:
A.
boring
B. center-drilling
C.
drilling
D.
reaming
Answer:
B
Eleven – sixteenths of an
inch expressed as a decimal is:
A.
.6785
B.
.7685
C.
.6875
D.
.6578
Answer:
C
The markings on a micrometer
barrel are:
A.
.025” apart
B.
.250” apart
C.
.0025” apart
D.
2.5” apart
Answer:
A
It measures the slope of the
top surface of the tool to the side in a direction perpendicular to the
longitudinal axis
A.
end relief angle
B.
side cutting edge angle
C.
side rake angle
D.
side relief edge angle
Answer:
C
It is used for holding straight
shank drills in the spindle to the machine when drilling
A.
chuck key
B.
drill chuck
C.
floating holder
D.
magic chuck
Answer:
B
A reamer is used to correct
the
A.
finish and depth of a drilled hole
B.
finish and position of a drilled hole
C.
size and position of a drilled hole
D.
size and roundness of a drilled hole
Answer:
D
Twist drills are usually
considered suitable machining holes having a length less than
A.
two times their diameter
B.
five times their diameter
C.
ten times their diameter
D.
twenty times their diameter
Answer:
B
In quick return mechanism of
shaping machine the ram stroke length is proportional to
A.
crank length
B.
ram length
C.
slotter arm length
D.
stroke
Answer:
A
Type and number of bearings
to be used for spindles of machine tool depend on
A.
type of spindle
B.
type of machine tool
C.
load on spindle
D.
load on the bearing
Answer:
D
When the dial on the
cross-feed is turned .010”, you remove from diameter of the stock being cut:
A.
.010
B.
.020
C.
.005
D.
.015
Answer:
A
The flexible type hacksaw
blade is best suited for work on:
A.
channel iron
B.
tubing
C.
aluminum
D.
any of the above
Answer:
D
A flexible back hacksaw blade
is one that has:
A.
only the teeth
B.
flexible ends
C. a
movable back
D.
any of the above
Answer:
D
A hacksaw blade with 24 TPI
is best suitable for cutting:
A.
tubing
B.
sheet metal over 18 gage
C.
brass and copper
D.
any of the above
Answer:
D
An all hard hacksaw blade is
one that:
A.
has a hard back and flexible teeth
B.
has a flexible back and hard teeth
C.
has the entire bade hardened
D.
will only fit a solid frame hacksaw
Answer:
C
A hacksaw blade can be placed
in a frame in:
A.
two positions
B.
four positions
C.
one position
D.
three positions
Answer:
B
What should be the top rake angle
to cut brass?
A. 0
B.
15
C.
30
D.
45
Answer:
A
It is a long, tapered punch
used for loosening straight pins, taper pins, rivets and other small parts
being disassembled
A.
center punch
B.
drift punch
C.
drive-pin punch
D.
hand punch
Answer: B
A tool used for turning nuts
or bolts
A.
c-clamps
B.
long nose
C.
plier
D.
wrench
Answer:
D
Used to permit lever shift
for vertical travel of rail
A.
ball crank
B.
clamp plates
C.
plumb bob
D.
plunger knob
Answer:
D
It is mounted on the top of
the column and is guided in perfect alignment by the machined dovetailed
surface
A.
arbor
B.
over arm
C.
saddle
D.
spindle
Answer:
B
Name of mechanism, which a
welding operator holds during gas welding and at the end of which the gases are
burred to perform the various gas welding operation.
A.
hose
B.
gage
C.
switch
D.
torch
Answer: D
A scriber is made from:
A.
carbon steel
B.
cold-rolled steel
C.
tool steel
D.
hot-rolled steel
Answer:
C
Before applying layout blue
on a piece of metal, it must be:
A.
roughened
B.
heated
C.
cleaned
D.
cold
Answer:
C
A drill bit has:
A. 4
flutes
B. 3
flutes
C. 2
flutes
D.
no flutes
Answer:
C
The alignment of coupling
faces can be checked by:
A.
using an inside micrometer
B.
inserting a thermocouple
C.
inserting a feeler gage between the coupling faces at various points around the
circumference
D.
rotating and measuring to nearest permanent fitting
Answer:
C
A piece of cast iron held
against an emery wheel will give off:
A.
dull yellow sparks
B.
bright shiny sparks
C.
red sparks
D.
no sparks
Answer:
A
When
cutting material in a lathe, the softer the material being cut, the tool bit
should have:
A.
more top rake
B.
less top rake
C.
double top rake
D.
any of the above
Answer:
D
After grinding a tool bit,
the cutting edge should be:
A. case-hardened
B.
rubbed with emery cloth
C.
stoned with an oilstone
D.
rubbed with crocus cloth
Answer:
C
It is a hole revolving cutter
or grinding wheel for mounting it on an arbor.
A.
arbor hole
B.
hole saw
C.
star drill
D.
star saw
Answer:
A
A machine in which materials
are pulverized between the two toothed metal disk rotating in opposite
directions.
A.
attrition mill
B.
ball mill
C.
beater mill
D.
tumbling mill
Answer:
A
A press in which mechanical
feeding of the work is synchronized with the press action
A.
automatic press
B.
dial press
C.
manual press
D.
punch press
Answer:
A
A supporting member that
carries a wheel and either rotates with the wheel to transmit mechanical power
to or from it, or allows the wheel to rotate freely on it called
A.
axle
B.
bushing
C.
coupling
D.
shaft
Answer:
A
A file whose edges are
parallel is known as
A.
blunt file
B.
crochet file
C.
cross cut file
D.
equaling file
Answer:
A
Straight muriatic acid is
often used as a flux on:
A.
galvanized iron
B.
cast sheet
C. sheet
steel
D.
any of the above
Answer:
D
Special solders used for
aluminum usually require:
A.
more heat
B.
less heat
C.
the same heat as copper wire
D.
the same heat as sheet metal
Answer:
A
Copper is annealed by heating
to a cherry red color and:
A. dousing
in cold water
B.
cooling slowly in air
C.
dousing in oil
D.
dousing in hot water
Answer:
B
A piece of mild steel held
against an emery wheel will give off:
A.
bright shiny sparks
B.
light straw colored sparks
C.
no sparks
D.
green sparks
Answer:
B
A gear wheel making 156 rpm
has 56 teeth. It drives another gear at 91 rpm. The number of teeth on the
second gear is:
A.
65
B.
90
C.
50
D.
96
Answer:
D
Tool steel can be hardened
by:
A.
heating red hot and plunging into water
B.
heating red hot and cooling in a blast of dry air
C.
heating red hot and plunging into linseed or cottonseed oil
D.
any of the above, depending on type and use
Answer:
D
A scriber is made from:
A.
carbon steel
B.
cold-rolled steel
C.
tool steel
D.
hot-rolled steel
Answer:
C
After grinding a tool bit,
the cutting edge should be
A.
case hardened
B.
rubbed with emery cloth
C.
rubbed with crocus clothe
D.
stoned with an oilstone
Answer:
D
When cutting material in a
lathe, the softer the material being cut, the tool bit should have
A.
any of these
B.
double top rake
C.
less top rake
D.
more top rake
Answer: C
A piece of cast iron held
against an emery wheel will give off
A.
bright shiny sparks
B.
dull yellow sparks
C.
no sparks
D.
red sparks
Answer:
B
Which of the following is not
a common term relating to the classification of fits
A.
bound
B.
medium force fit
C.
snug
D.
tunking
Answer:
A
An oversize hole is produced
by a drill if
A.
cutting speed is too high
B.
feed is too high
C.
insufficient coolant is used
D. lips of drill are of
unequal length
Answer: D
The studs used as a coolant
in general machine shop consist of
A. a
chemical solution
B.
an emulsion of oil and water
C. a
solution of detergent and water
D. a
straight mineral
Answer: B
Sometimes used for soldering
bright tin
A.
rosin
B.
sal ammoniac
C.
tallow
D.
tinning
Answer:
A
A very effective flux for
soldering galvanized iron and zinc
A.
cut acid
B.
muriatic acid
C.
soldering pastes
D.
zinc chloride
Answer: B
The process of checking the
surface of a piece by rolling depressions into the surface
A.
honing
B.
knurling
C.
reaming
D.
snagging
Answer: B
The process of cutting
internal threads by means of a cutting tool.
A.
chamfering
B.
honing
C.
reaming
D.
tapping
Answer:
D
The surface below the cutting
edge
A. face
B.
flank
C.
nose
D.
side relief
Answer:
B
Which one is the hardest
material?
A.
brass
B.
bronze
C.
diamond
D.
steel
Answer:
C
The movement of belt upon the
face of rim or outer of the driver and driven pulleys within the area of arc of
contact is called
A.
creep
B.
crowning
C.
dressing
D.
slip
Answer:
A
It is a device, which holds
the job family
A.
clamp
B.
fixture
C.
grip
D.
jig
Answer:
B
It is the outer surface of
face or rim of the pulley is made in convex form to keep the belt in center
when it is in motion
A.
creep
B.
crowning
C.
dressing
D.
slip
Answer:
B
It is used to transmit motion
at high speed without producing noise.
A.
bevel gear
B.
helical gears
C.
hypoid gears
D.
worm gears
Answer:
B
It is used to transmit motion
at high speed with heavy load without producing noise
A.
bevel gear
B.
herring bone gear
C.
spur gear
D.
worm gear
Answer:
B
It connects the shafts with
soft materials such as rubber, leather and canvass
A.
flexible coupling
B.
Oldham coupling
C.
rigid coupling
D.
universal coupling
Answer:
A
One of the most important
factors that is often overlooked when soldering is the fact that:
A.
the surface to be soldered must be clean
B.
the two metals to be soldered must not be the same
C.
the two metals to be soldered must be the same
D.
all surfaces should be dipped in acid first
Answer:
A
A surface should be prepared
for soldering by
A.
filing the surfaces
B.
scraping the surfaces
C.
acid-cleaning the surfaces
D.
any of the above
Answer: D
The hand tool used for
cutting threads on round stock is the:
A. stock and die
B.
die wrench
C.
stock
D.
stock cutter
Answer:
A
A hand tool used for cutting
threads on round stock is the:
A.
stock and die
B.
die wrench
C.
stock
D.
stock cutter
Answer:
A
A tapered piece of stock is
2” long, 1-1/8” diameter at one end and ½ diameter at the other end. The taper
per foot is:
A.
2”
B.
2-1/2”
C.
2-1/4”
D.
2-1/16”
Answer:
C
Sweating is the process of:
A.
soldering two different kinds of metal together
B.
separating two pieces of metal that have been soldered together
C.
tinning two surfaces, applying, flux between them, holding the two together and
heating
D.
none of the above
Answer:
C
If muriatic acid is used as a
flux, the soldered area must be cleaned thoroughly afterwards to prevent:
A.
anyone touching it from getting burned
B.
remaining acid from eating the metal
C.
the acid from evaporating the solder disintegrating
D.
none of the above
Answer: B
It cannot be forged because
it will break if heated and beaten by hammer.
A.
Carbon steel
B. Cast
iron
C.
High speed steel
D.
Tool steel
Answer:
B
Shaper tools are made of what
type of material?
A.
Babbitt
B.
Brass
C.
Bronze
D.
High speed steel
Answer:
D
It is the operation of
beveling the mouth of a hole.
A.
Counter boring
B.
Counter broaching
C.
Counter sinking
D.
Spot facing
Answer:
C
The size of abrasive grains
produced by crushing process is called
A.
B.
C.
Grit
D.
Answer:
C
It is the combination of
iron, carbon and other alloying elements.
A.
Alloy steel
B.
Brass
C.
Carbon steel
D. Cast
iron
Answer:
A
It is the process to divide
the periphery of the job in degrees.
A.
Angular indexing
B.
Differential indexing
C.
Direct indexing
D.
Plain indexing
Answer: A
It consists of surface
irregularities, which result from the various manufacturing process.
A.
Flaws
B.
Lay
C.
Roughness
D.
Waiveness
Answer:
C
A piece of tool steel held
against an emery wheel will give off:
A.
White sparks with stars on the ends
B.
Yellow sparks
C.
No sparks
D.
Green sparks
Answer:
A
Grinding wheels have a range
of soft to hard abrasive materials depending on the use. Most manufacturers
latter their wheels from A to Z. The hardest is marked:
A. E
B. A
C. Z
D.
El
Answer: C
The main difference between a
planer and shaper is that:
A.
The planer has an offset table and the shaper has a horizontal table.
B.
The shaper has a rotting table and the planer has a horizontal table.
C.
The table of planer has a reciprocating motion past the tool head white the
table of the shaper is stationary and the tool head has a reciprocating motion.
D.
Ones is larger than the other
Answer:
C
One of the factors involved
in the choice of a grinding wheel is:
A.
The kind of material to be ground
B.
The amount of stock to be removed
C.
The kind of finish required
D.
All of the above
Answer: D
The “tang” of a file is the
past that:
A.
Does the cutting
B.
Fits into the handle
C.
has no teeth
D.
is opposite the handle
Answer:
B
The best method of avoiding
accident is by observing _______ related to job, machine and work piece.
A.
Cleanliness
B.
Emery
C.
Opponent
D.
Safety precautions
Answer:
D
The size of try square is
measured from the inner edge of stock to the end of its
A.
Base
B.
Blade
C.
Body
D.
Edge
Answer:
B
Angle of center punch is
A.
30°
B.
45°
C.
60°
D.
90°
Answer: D
Staggering of hacksaw blade
teeth on both sides alternatively is called
A.
Arrangement of teeth
B.
Positioning to teeth
C.
Setting of teeth
D.
None of the above
Answer:
C
It is the distance measured
parallel to the axis from a point on a screw thread to the corresponding point
on the next thread.
A.
Chord
B.
Lead
C.
Linear
D.
Pitch
Answer:
D
Solder is an alloy of
A.
Lead and antimony
B.
Lead and tin
C.
Lead and tungsten
D.
Lead and zinc
Answer:
B
It’s a square key with the
bottom two corners are beveled.
A.
Saddle key
B.
Barth key
C.
Woodruff key
D.
Gib head key
Answer:
B
Change in metal structure by
which the surface structure recovers from its unstable condition
A.
annealing
B.
normalizing
C.
aging
D.
tempering
Answer:
C
A tapered square key is known
as
A.
Gib head
B.
Woodruff
C.
Kennedy
D.
Barth
Answer:
C
The process of welding two
dissimilar metals is known as
A.
Friction welding
B.
Flash welding
C.
Oxyacetylene welding
D.
Cold welding
Answer:
D
A nonmetal considered as undesirable
impurity in steel is
A.
lead
B.
sulfur
C.
phosphorous
D.
cyanide
Answer:
B
An alloying element which
improves the tensile strength of steel and make it harder
A.
vanadium
B.
carbon
C.
cobalt
D.
chromium
Answer:
D
An alloying element which reduces
deformation of configuration and sulfuric brittleness.
A.
molybdenum
B.
manganese
C.
nickel
D.
chromium
Answer:
B
What is the lip clearance
angle of twist drill for generated work?
A. 3
– 6°
B. 8
– 10°
C.
12 – 15°
D.
18 – 22°
Answer:
C
It is a milling method in
which parts are placed in a row parallel to the axis of the cutting tool end
are milled simultaneously.
A.
Abreast milling
B.
Angular milling
C.
Helical milling
D.
Straddle milling
Answer:
A
A core drill with hardened
steel shot pellets that revolve under the rim of the rotating tube, employed in
rotary drilling in very hard ground.
A.
Adamantive drill
B.
Automatic drill
C.
Double core barrel drill
D.
Flat drill
Answer:
A
A grinding mill of large
diameter with either lumps of ore pebbles or steel balls as crushing bodies the
dry lead is air swept remove mesh material.
A.
Aerial speed
B.
Aero fall mill
C.
Aero motor
D.
Ball mill
Answer: B
A
tool – steel cutter used fro – finishing surfaces of angles greater than or
less than 90* with its axis of rotation called:
A.
Angle cutter
B.
Asphalt cutter
C.
Circular cutter
D.
Helical cutter
Answer:
A
When installing a new
grinding wheel, always use:
A.
Blotting paper gaskets on each side of the wheel
B.
Copper gasket on each side of the wheel
C.
Only the steel washers provided with the machine
D.
None of the above
Answer:
A
The operation of “truing” a
grinding wheel is known as:
A.
centering
B.
dressing
C.
sizing
D.
rounding
Answer:
B
The tool used to check
external pipe threads is called a:
A.
plug gage
B.
thread gage
C.
pitch gage
D.
ring gage
Answer:
D
The tool used to check
internal pipe threads is called a:
A.
plug gage
B.
thread gage
C.
pitch angle
D.
ring gage
Answer:
A
The tool used to cut gears is
called a:
A.
gear cutter
B.
gear hob
C.
gear center
D.
gear threader
Answer:
B
If use a dry grinding wheel
for sharpening tool bits, dip the end of the bit in water frequently to
prevent-
A.
burning your fingers
B.
annealing the cutting edge of the bit
C.
hardening of the tip
D.
the tip from crysallizing
Answer:
B
CNC in machine shop means
A.
Communication Network Control
B.
Computer Network Center
C.
Computer Number Control
D.
Computer Numerical Control
Answer:
D
It is the time lost due to
breakdowns, waiting for tools, minor accidents etc.
A.
Down time
B.
Handling time
C.
Machining time
D.
Set up time
Answer:
A
Refers to the process of
separating or removing the burning or combustible material from the
neighborhood of the fire.
A.
Blanketing
B.
Combustion
C.
Cooling
D.
Starvation
Answer:
D
What is the necessity of
giving tolerance?
A.
It saves the labor charges
B.
Its saves the material from wastage
C.
It saves the time
D.
All of the above
Answer:
D
It is done then and there by
adjusting or repairing the faults come in notice during work.
A.
Corrective maintenance
B.
Predictive maintenance
C.
Preventive maintenance
D.
Routine maintenance
Answer:
D
Which statement does NOT
belong to the function of bearings?
A.
To give free rotation to the shaft
B.
To guide the shaft
C.
To support the shaft
D.
To transmit power
Answer:
D
A “pillar” file has:
A.
One safe edge
B.
Three safe edges
C.
Two safe edges
D. A
or C
Answer:
D
In general, files are divided
into two classes called:
A.
Single – cut and double – cut
B.
Fine and coarse
C.
Rough and smooth
D.
Heel and sizes
Answer:
A
The length of a file is
measured from:
A.
End to end
B.
Point to heel
C.
Point to end
D.
Heel to end
Answer:
B
A “pillar” file is used for:
A.
Filling slots
B.
Filling keyways
C.
Filling against a shoulder
D.
Any of the above
Answer:
D
A flexible hacksaw blade has
a tendency to:
A.
Snap easily
B.
Buckle or run out of line when too much pressure is applied
C.
Cut too fast
D.
Cut on a slant
Answer:
B
Soldering is the process of:
A.
Holding two metals together by heating
B. Joining two metals by
third soft metal that is applied in a molten state
C.
Holding two different kinds of metals together by heating
D.
Joining two metals together by heating
Answer:
B
When soldering, flux is used
to;
A.
Keep the solder from running off the metal
B.
Keep the metal from getting too hot
C.
Keep the tip of the soldering iron clean
D.
Remove and prevent oxidation of the metals
Answer:
D
What is used to connect the
shaft whose axes are intersecting?
A.
Flexible coupling
B.
Oldham coupling
C.
Rigid coupling
D.
Universal coupling
Answer:
D
It is generally used on high
speed with light load because it has point contact.
A.
Ball bearing
B.
Metal bearing
C.
Roller bearing
D. Wood
bearing
Answer:
A
It is generally used on high
speed with heavy load because it has line contact.
A.
Ball bearing
B.
Metal bearing
C.
Plastic bearing
D.
Roller bearing
Answer: D
It is a process of enlarging
and smoothening the punched hole by means of tapered drifts of various sizes
and shape.
A.
Drawing out
B.
Drifting
C.
Jumping
D.
Upsetting
Answer:
B
It is a set of gears fitted
in different position on a plate which are controlled by a lever.
A.
Differential gear
B.
Gear train
C.
Stud gear
D. Tumbler gear
Answer:
D
An instrument for determining
the relative hardness of material by a drop and rebound method.
A.
Brinell hardness tester
B.
Rockwell hardness tester
C.
Scleroscope
D.
Universal testing machine
Answer:
C
An instrument for measuring
the degree of surface roughness in micro inches.
A.
Caliper
B.
Micrometer
C.
Profilometer
D.
Sclerescope
Answer:
C
These spindle of the grinding
machine on which the wheel is mounted.
A.
Arbor
B.
Bearing
C.
Bushing
D.
Fluting
Answer:
A
A device for holding grinding
wheels of special shape or the working piece – being grounded.
A.
Chuck
B.
Fixtures
C.
Head stock
D.
Jigs
Answer:
A
Grinding the grooves of a
twist drill or tap.
A.
Flaring
B.
Fluting
C.
Honing
D.
Lapping
Answer:
B
The dulling of the cutting
particles of a grinding wheel resulting in a decreased rate of cutting is
called
A.
fluting
B.
glazing
C.
grinding
D.
lapping
Answer:
B
The process of lengthening a
piece of stock while the cross-sectional area is being reduced
A.
Drawing
B.
Honing
C.
Tapping
D.
Upsetting
Answer:
A
The major factors, which
determined the rpm on milling cutter, are the material being cut and
A.
depth of the cutter
B.
diameter of cutter
C.
number of teeth in cutter
D.
time allowed to complete the job
Answer:
D
Electron beam machining
process is quite suitable for a material having
A.
high melting point and high thermal conductivity
B.
high melting point and low thermal conductivity
C.
low melting point and low thermal conductivity
D.
low melting point and high thermal conductivity
Answer:
B
Grinding is what type of
operation?
A.
Metal finishing operation
B.
Metal fusing operation
C.
Metal powdering operation
D.
metal surfacing operation
Answer:
A
Grinding is done wherever
A. a
large amount of material is to be removed
B. a
small amount of material is to be removed
C.
high accuracy is required
D.
other machining operations cannot be carried out
Answer:
C
Laser beam machining process
is used to machine
A.
heavier materials
B.
lighter materials
C.
thicker materials
D.
thinner materials
Answer:
D
A hard grade-grinding wheel
is suitable for grinding
A.
both hard and soft materials
B.
hard materials
C.
smooth materials
D.
soft materials
Answer:
D
The usual ratio of forward
and return stroke, in quick mechanism of shaping machine is
A.
3:1
B.
3:2
C.
5:2
D.
6:8
Answer:
B
Solder will not unite with
metal surface that has:
A.
grease on it
B.
dirt on it
C.
oxidation on it
D.
any of the above
Answer:
D
Prepared soldered paste flux
is most popular but if you did not have any, you should use:
A.
hydrochloric acid
B.
sulphuric acid
C.
nitric acid
D.
any of the above
Answer:
A
Another name for hydrochloric
acid is:
A.
sulphuric acid
B.
muriatic acid
C.
nitric acid
D.
acetic acid
Answer: B
Hard solder is made of:
A.
copper and zinc
B.
tin and zinc
C.
tin and copper
D.
tin and lead
Answer:
A
Soft solder is made of:
A.
copper and zinc
B.
tin and lead
C.
tin and copper
D.
tin and zinc
Answer:
B
Soft solder melts at
approximately:
A.
250 deg.
B.
350 deg.
C.
450 deg.
D.
550 deg.
Answer:
B
The flux usually used for
hard solder is:
A.
rosin
B.
borax
C.
barium
D.
alum
Answer:
B
Which of the following is a
boring machine tool used particularly for large work place, types are
horizontal and vertical?
A. Boring mill
B.
Burrstone mill
C.
Cage mill
D.
Chile mill
Answer:
A
A tap with a chamfer 1 – 1 ½
threads in length
A.
Bottom tap
B.
Center tap
C.
Plug tap
D.
Taper tap
Answer:
A
A small portable hand drill
customarily used by hand setters to drill the holes in breast called
A.
spiral drill
B.
diamond drill
C.
churn drill
D.
breast drill
Answer:
D
A job, which is fixed away
from the table, can be machined by
A.
running head
B.
moving head
C.
static head
D.
traveling head
Answer:
D
Shaper tools are made of
A.
cast iron
B.
high speed steel
C.
mild steel
D.
wrought iron
Answer:
B
Refers to the unit can be
moved longitudinally along the swivel table and is clamped in position by two
bolts one on either side of the base
A.
Cross stock
B.
Foot stock
C.
Head stock
D.
Tail Stock
Answer:
C
When a lathe is put into back
gear, it will go:
A.
at the same speed backwards
B.
slower
C.
faster
D.
at a slower speed backwards
Answer:
B
When using a drill press, the
work should be held with
A.
the hand
B. a
pair of pliers
C. a
vise or clamp
D.
gloves on
Answers:
C
When drilling a hole in a
piece of work held in a lathe chuck, and would use the:
A.
compound rest
B.
cross-feed
C.
tailstock and drill chuck
D.
headstock
Answer:
C
Copper is annealed by heating
to a cherry red color and:
A.
dousing in cold water
B.
cooling slowly in air
C.
dousing with oil
D.
dousing in hot water
Answer:
B
The purpose of “annealing” is
to make a metal:
A.
harder
B.
medium - hard
C.
softer
D.
shiny
Answer:
C
The purpose of “tempering” is
to make a metal:
A.
harder
B.
softer
C.
less brittle
D.
more brittle
Answer:
C
The
minimum diameter of a piece of round stock necessary to make a square key ¾” on
a side is:
A.
1.5”
B.
1.06”
C.
1.0”
D.
.75”
Answer:
B
A fine grained, salty silica
rock used for sharpening edge tools
A.
Oilstone
B.
Peeblestone
C.
Surface grinder
D.
Rocky oil
Answer:
A
A hand tool used to measure
tension on bolts
A.
Hammer
B.
Plier
C.
Screw driver
D.
Torque range
Answer:
D
A hand tool used to measure
engine crank web deflection
A.
compound gage
B.
dial gage
C.
distortion gage
D.
feeler gage
Answer:
C
A
kind of chuck, which has reversible jaws, which could be adjusted separately
A.
Combination chuck
B. Independent chuck
C.
Magnetic chuck
D.
Universal chuck
Answer:
B
A method whereby a gear is
run with another gear that has abrasive surface material
A.
hobbing
B.
honing
C.
lapping
D.
milling
Answer:
C
Is the process of cold works
where a limited amount of material, resulted to a higher strength and it leaves
a surface under compressive stress
A.
surface finishing
B.
smoothing
C.
surfacing
D.
surface rolling
Answer:
D
Is largely used for low
strength application such as elevator ropes not used for hoisting and for
stationary guy ropes
A.
steel rope
B.
cast steel rope
C.
nylon rope
D.
iron wire rope
Answer:
D
Nitriding process of surface
treatment for steel tools is used for tools taking
A.
heavy cuts
B.
light cuts
C.
medium cuts
D.
straight cuts
Answer:
B
At a very low cutting speeds
the tool wear is due to
A.
hardness
B. material
C.
plowing action
D.
transfer
Answer:
C
They are mixtures of lard,
cottonseed or rapeseed oils and mineral oils are called
A.
Cooling oils
B.
Cutting oils
C.
Heating oils
D.
Emulsions
Answer:
B
How is the height of a bench
vice adjusted?
A.
By using a wooden plate form
B.
By using a wooden packing piece under the vice base
C.
By using a vice adjusting fixture
D.
All of the above
Answer:
D
Why hacksaw blade teeth get
dullness?
A.
Coarse pitched blade is used on hard metal
B.
Pressure is not released in return stroke
C.
To much speed and pressure
D.
Any of the above
Answer:
D
Files are classified
according to
A.
grade and cut
B.
shape
C.
size and length
D.
all of the above
Answer:
D
How are rivets made?
A.
Cold pressing
B.
Drawing
C.
Hot rolling
D.
Rolling
Answer:
A
What support the top rake?
A.
Front clearance
B.
Side clearance
C.
Side rake
D.
Top rake
Answer:
A
Which of the following
reduces the rubbing action?
A.
Front clearance
B.
Side Clearance
C.
Side rake
D.
Top rake
Answer:
A
Which of the following is
used for all general purposes?
A.
Forging
B.
Production slotter
C.
Puncher slotter
D.
Tool room slotter
Answer:
C
It is an operation of milling
the complex surfaces with the help of a group of cutters mounted on the same
arbor
A.
Climb milling
B.
Down milling
C.
Gang milling
D.
Straddle milling
Answer:
D
It is an operation to divide
the periphery of the job into number of equal parts
A.
Dividing head
B.
Indexing
C.
Protractor
D.
Slotting
Answer:
B
The angle formed between the
face of a tool and the work surface or the tangent to the work piece at the
point of contact with the tool called
A.
clearance angle
B.
cutting angle
C.
rake angle
D.
wedge angle
Answer:
B
·
In
a complex phenomenon and maybe be caused by nonuniform deformation during
rolling or by the presence of deflects in the original cast
billet.
Aligatoring
·
Heading
processing can be carried out cold, warm, or hot; they are be performed on
machines called
Headers
·
Is
essentially an upsetting operation, usually performed at the end of a round rod
or wire in order to produce a larger cross-section.
Heading
·
Consist
of pressing a hardened punch, having a particular tip geometry, into the surface of block of metal.
Hubbing
·
A
process similar to roll forging
Skew Forging
·
Is
a process in which a blank is forged into a shape with a tool that forms the
blank in several small steps
Incremental Forging
·
The
dies are heated to the same temperature as that of the hot workpiece.
Isothermal Forging or hot-die forging
·
A
solid rod or tube is subjected to radial impact
forces by a set of reciprocating dies.
Swaging
·
Is
generally defined as the capability of a material to undergo deformation
without cracking.
Forgeability
·
Punching
a number of holes in a sheet
Perforating
·
Leaving
a tab without removing any material
Lancing
·
Shearing
the sheet into two or more pieces
Parting
·
Removing
pieces ( or various shapes) from the edges
Notching
·
Is
a process of bending the edges of sheet metals, usually to 90 deg.
Flanging
·
Involves
joining two edges of sheet metal by hammering
Seaming
·
Is
the process whereby green compacts are heated in controlled – atmosphere
furnace to a temperature below the melting point, but sufficiently high to
allow bonding of the individual particles
Sintering
·
Were
introduced in 1960’s. they typically 70% aluminum oxide and 30% titanium
carbide
Cermets
·
Of
all known materials, the hardest substance is ______. It has low friction, high
wear resistance and the ability to maintain a sharp cutting edge.
Diamond
·
To
enlarge a hole or cylindrical cavity made by aprevious process or to produce
circular internal grooves.
Boring
·
To
produced a regular shaped roughness on cylindrical surfaces, as in making knobs.
Knurling
·
Because
of friction between the specimen and the platens, the specimen’s cylindrical
surface bulges ; this effect is called.
Barreling
·
Is
usually defined as resistance to permanent indentation.
Hardness
·
Test
involves pressing a steel or tungsten – carbide ball 10 mm diameter against a
surface , with a load of 500 kg, 1500 kg, or 3000 kg.
Brinell Test
·
This
test measures the depth of penetration instead of the diameter of the
indention.
Rockwell Test
·
Formerly
known as the diamond pyramid hardness test, uses a pyramid – shaped diamond
indenter and a load ranges from 1kg to 120 kg
Vickers Test
·
Uses
to measure the hardness of rubber, plastics, and similar soft and elastic non –
metallic materials.
Durometer
·
Is
a phenomenon in which carbon atoms in steels segregates
to dislocations , thereby pinning them and, in this way, increasing the
resistance to dislocation movement.
Strain Aging
·
Is
a phenomenon characterized by high permeability and permanent magnetization
that are due to alignment of iron, nickel, and
cobalt atoms into domains.
Ferromagnetism
·
Exhibited
by some materials, such as quartz crystals and some ceramic materials , such as
cubic ferrites.
Piezoelectric Effect
·
In
this structure, graphite exists largely in the form of flakes. When it is
broken, the fracture path is along the graphite flakes and has, therefore gray,
sooty appearance.
Gray Cast Iron
·
The
steel is formed into desired shapes within
controlled ranges of temperature and time to avoid formation of non martensitic
transformation products.
Ausforming
·
Improves
strength and hardness at elevated temperatures.
Cobalt
Nice tools for the exam
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