1. Answer: A
 Heating above the transformation
range, usually 1300oF to 1350oF, and
cooling slowly to soften the metal and
increase in machining.
A. Annealing
B. Hardening
C. Normalizing
D. Tempering

2. Answer: B
 Heating above the transformation
temperature and quenching usually n
oil, for the purpose of increasing the
hardness.
A. Annealing
B. Hardening
C. Normalizing
D. Tempering

3. Answer: C
 Reheating to a temperature below the
transformation range, followed by any
desired rate of cooling to attain the
desired properties of metal.
A. Annealing
B. Hardening
C. Tempering
D. Stress Relieving

4. Answer: D
 Heating to a subcritical
temperature, about 1,100oF to 1,300oF
and holding at that temperature for a
suitable time for the purpose of reducing
internal residual stresses.
A. Annealing
B. Hardening
C. Tempering
D. Stress Relieving

5. Answer: C
 Heating to some 100oF above the
transformation range with subsequent
cooling to below that range in still air at
room temperature to produce uniform
structure of the metal.
A. Annealing
B. Hardening
C. Normalizing
D. Tempering

6. Answer: A
 A machine tool used for producing holes
in metal by the use of a cutting tool called
drill.
A. Drilling Machine
B. Boring Machine
C. Milling Machine
D. Broaching Machine

7. Answer: C
 A machine tool used to form metals parts
by removing metal from a workpiece by
the use of a revolving cutter with many
teeth each tooth having a cutting edge
which removes its share of the stock.
A. Drilling Machine
B. Boring Machine
C. Milling Machine
D. Broaching Machine

8. Answer: A
 A machine tool used to sharpen or shape
tools by using an abrasive wheel.
A. tool grinder
B. shaper
C. planer
D. power saw

9. Answer: B
 A machine tools used to enlarge a hole by
means of an adjustable cutting tool with
only one cutting edge.
A. drilling machine
B. boring machine
C. milling machine
D. broaching machine

10. Answer: D
 A machine tool used to cut metal parts of
light, medium, and large sections using a
reciprocating hacksaw blade.
A. tool grinder
B. shaper
C. planer
D. power saw

11. Answer: B
 A machine tool used to machine flat or
plane surfaces with a single point cutting
tool.
A. tool grinder
B. shaper
C. planer
D. power saw

12. Answer: C
 A machine tool used for production of flat
surfaces on pieces too large or too heavy
to hold in a shaper.
A. tool grinder
B. shaper
C. planer
D. power saw

13. Answer: D
 A machine tool used to finish internal or
external surfaces, such as holes or
keyways by the used of a cutter called a
broach, which has a series of cutting
edges or teeth.
A. drilling machine
B. boring machine
C. milling machine
D. broaching machine

14. Answer: B
 An alloy of copper and tin.
A. brass
B. bronze
C. Iron
D. Tin

15. Answer: A
 An alloy of copper and zinc.
A. brass
B. bronze
C. Iron
D. Tin

16. Answer: A
 The process of forming metal parts by the
use of dies after the metal is heated to its
plastic range.
A. rolling
B. forging
C. turning
D. casting

17. Answer: B
 The process of forming a metal parts by
the use of a powerful pressure from a
hammer or press to obtain the desired
shape, after the metal has been heated to
its plastic range.
A. rolling
B. forging
C. turning
D. casting

18. Answer: A
 A manganese steel containing
approximately 0.20% carbon.
A. SAE 1320
B. SAE 1230
C. SAE 2340
D. SAE 4230

19. Answer: A
 A machine tool in which metal is removed
by means of a revolving cutter with many
teeth, each tooth having a cutting edge
which remove its share of the stock.
A. milling machine
B. broaching machine
C. lathe machine
D. boring machine

20. Answer: C
 A metal turning machine tool in which the
work, while revolving on a horizontal axis, is
acted upon by a cutting tool which is made to
move slowly (feed) in a direction more or less
parallel to the axis of the work (longitudinal
feed)
A. milling machine
B. broaching machine
C. lathe machine
D. boring machine

21. Answer: B
 A machine tool used in the production of
flat surfaces on pieces too large or too
heavy or, perhaps too awkward to hold in
a shaper.
A. shaper
B. planer
C. tool grinder
D. power saw

22. Answer: C
 It consist of shaping a piece by bringing it
into contact with a rotating abrasive
wheel.
A. drilling
B. boring
C. grinding
D. broaching

23. Answer: A
 A tool used in measuring diameters.
A. caliper
B. nanometer
C. tachometer
D. pyrometer

24. Answer: B
 Used to true and align machine
tools, fixtures, and works, to test and
inspect size trueness of finished work, and
to compare measurements either heights
or depths or many other measurements.
A. dial gauge
B. dial indicator
C. tachometer
D. speedometer

25. Answer: B
 The ability of metal to be deformed
considerably without rupture.
A. ductility
B. plasticity
C. malleability
D. elasticity

26. Answer: C
 The shop term used to include the
marking or inscribing of center
points, circles, arcs, or straight lines upon
metal surfaces, either curved or flat, for
the guidance of the worker.
A. shaping
B. hobbing
C. laying out
D. shaping

27. Answer: D
 An operation of sizing and finishing a hole
by means of a cutting tool having several
cutting edges.
A. notching
B. piercing
C. turning
D. reaming

28. Answer: A
 The operation of making a cone-shaped
enlargement of the end of a hole, as for a
recess for a flat head screw.
A. countersinking
B. knurling
C. squaring
D. perforating

29. Answer: D
 The operation of enlarging a hole by
means of an adjustable cutting tool with
only one cutting edge.
A. drilling
B. broaching
C. milling
D. boring

30. Answer: A
 An imaginary circle passing through
points at which the teeth of the meshing
gears contact each other.
A. pitch circle
B. addendum circle
C. dedendum circle
D. base circle

31. Answer: B
 A type of bolt intended for use in bolting
wooden parts together or wood to metal. It
has a short portion of shank just underneath
a round head, which is designed to keep the
bolt from turning in the wood when the nut is
tightened.
A. u - bolt
B. carriage bolt
C. eye bolt
D. stud bolt

32. Answer: C
 The number of teeth per inch of pitch
diameter and which gives some
indications of the size of the gear teeth.
A. module
B. pitch circle
C. diametral pitch
D. circular pitch

33. Answer: A
 The distance from the center of one tooth
of a gear to the center of the next
consecutive tooth measured on the pitch.
A. circular pitch
B. module
C. diametral pitch
D. pitch circle

34. Answer: C
 The portion of a gear tooth that projects
above or outside the pitch circle
A. top relief
B. dedendum
C. addendum
D. tooth space

35. Answer: B
 The portion of a gear tooth space that is
cut below pitch circle and is equal to the
addendum plus the clearance.
A. top root
B. dedendum
C. addendum
D. top land

36. Answer: C
 When meshed with a gear, it is used to
change rotary motion to reciprocating
motion.
A. gear shaft
B. gear tooth
C. gear rack
D. gear motor

37. Answer: B
 A kind of gears used for heavy duty works
where a large ratio of speed is required
and are extensively used in speed
reducers.
A. bevel gears
B. worm gears
C. helical gears
D. spiral gears

38. Answer: A
 A kind of gears used to transmit motion
from one shaft to another shaft at an
angle to the first.
A. bevel gears
B. worm gears
C. helical gears
D. spiral gears

39. Answer: B
 The uniform heating of steel above the
usual hardening temperatures, followed
by cooling freely in air.
A. annealing
B. normalizing
C. hardening
D. tempering

40. Answer: A
 The operation of cooling a heated piece of
work rapidly by dipping it in water, brine
or oil.
A. quenching
B. tempering
C. normalizing
D. annealing

41. Answer: D
 A method used in softening a piece of metal
that is too hard to machine and is done by
heating steel slowly above the usual
hardening temperature, keeping it at the
heat for ½ to 2 hours, then cooling
slowly, preferably in a furnace.
A. broaching
B. quenching
C. normalizing
D. annealing

42. Answer: B
 The total permissible variation in the size
of a dimension; the difference between
the limits of size.
A. allowance
B. tolerance
C. variance
D. interface

43. Answer: A
 The operation of machining the end of a
workpiece to make the end square with
the axis.
A. squaring
B. buffing
C. lapping
D. honing

44. Answer: B
 The clearance between the tooth profiles
of a gear tooth.
A. toothspace
B. backlash
C. flank
D. width

45. Answer: C
 A mechanism which usually do the
indexing in a machine tool.
A. slotter
B. chuck
C. dividing head
D. indexer

46. Answer: B
 A material that can wear away a
substance softer than itself.
A. phenol
B. abrasive
C. tungsten
D. chromium

47. Answer: C
 A cylindrical bar of steel with threads
formed around it and grooves or flutes
running lengthwise in it, intersecting with
the threads to form cutting edges. It is
used to cut internal threads.
A. groove
B. lap
C. tap
D. flute

48. Answer: A
 A set of gages consisting of thin strips of
metal of various thickness mounted in a
steel case or holder and is widely used for
measuring and checking clearances.
A. feeler gage
B. depth gage
C. line center gage
D. lay-out gage

49. Answer: D
 A machine tool which is very similar to a
shaper except that the ram reciprocates
vertically rather than horizontally
 ????
A. lathe
B. grinder
C. planer
D. slotter

50. Answer: B
 A machine tool used principally to
machine flat or plane surfaces with single-
point cutting tool.
A. grinder
B. shaper
C. planer
D. turret lathe

51. Answer: A
 A kind of bolts which has no head and
instead has threads on both ends.
A. stud bolts
B. acme threaded bolts
C. square threaded bolts
D. hex bolts

52. Answer: B
 A kind of chuck which has a reversible
jaws which could be adjusted separately.
A. collet chuck
B. independent chuck
C. four jaw chuck
D. two jaw chuck

53. Answer: C
 A tool which when pressed into a finished
hole in a piece of work, provides centers
on which the piece may be turned or
otherwise machined.
A. mash
B. butt
C. mandrel
D. wobble

54. Answer: D
 A kind of chuck which should not be used
where extreme accuracy is required.
A. collet chuck
B. magnetic chuck
C. four jaw chuck
D. Universal chuck

55. Answer: A
 The process of checking or producing
checkers on the surface of a piece by
rolling checkered depressions into the
surface.
A. knurling
B. hemming
C. breading
D. embossing

56. Answer: C
 It fits into the main spindle or a lathe and is
so called because it acts as a bearing surface
on which the work rests. It revolves with the
work. When compared with the hardness of
the dead center in the tailstock, it is usually
soft, and is so made since it does no work.
A. ram center
B. spindle center
C. live center
D. bearing center

57. Answer: A
 A gripping device with two or more
adjustable jaws set radially.
A. chuck
B. carriage
C. tailstock
D. fan

58. Answer: C
 Steel balls for ball bearings are
manufactured by:????
A. turning
B. rolling
C. casting
D. cold heading

59. Answer: B
 Addendum of a cycloidal gear tooth is:
A. cycloid
B. epicycloids
C. straight rack
D. involute

60. Answer: A
 In a lathe, it comprises the main
spindle, the necessary mechanism for
obtaining the various spindle speed and
also certain gears which are used to
operate the quick-change gear
mechanism.
A. headstock
B. carriage
C. tailstock
D. fan

61. Answer: B
 The process of heating a piece of steel to
a temperature within or above critical
range and cooling rapidly.
A. normalizing
B. hardening
C. annealing
D. tempering

62. Answer: C
 Welding operation in which a non-ferrous
filler metal melts at a temperature below
that of the metal joined but is heated
above 450oC.
A. gas welding
B. spot welding
C. brazing
D. steam welding

63. Answer: C
 Uniting two pieces of metal by means of a
different metal which is applied between
the two in molten state.
A. casting
B. welding
C. soldering
D. brazing

64. Answer: A
 Fusion process in which the metal is
heated into a state of fusion permitting it
to flow together into a solid joint.
A. electric arc welding
B. gas welding
C. spot welding
D. projection welding

65. Answer: B
 Joining metal by means of high current at
low voltage. During the passage of
current, pressure by the electrodes
produces a forge weld.
A. spot welding
B. resistance welding
C. steam welding
D. gas welding

66. Answer: D
 A device for accurately measuring
diameters.
A. radiometer
B. profilometer
C. spectrometer
D. micrometer

67. Answer: B
 A group of thin steel strips for measuring
clearances.
A. distortion gage
B. feeler gage
C. line center gage
D. deflection gage

68. Answer: A
 A hand tool used to measure engine crank
web deflections.
A. distortion gage
B. feeler gage
C. line center gage
D. deflection gage

69. Answer: B
 A hand tool used to measure tension on
bolts.
A. indexer
B. torque wrench
C. torsionmeter
D. tensiometer

70. Answer: B
 The permissible variation in the size of a
dimension; the difference between the
limits of size.
A. allowance
B. tolerance
C. variance
D. interface

71. Answer: B
 A gear with teeth on the outer cylindrical
surface.
A. outer gear
B. external gear
C. spiral gear
D. helical gear

72. Answer: C
 The diameter of a circle coinciding with
the top of the teeth of an internal gear.
A. pitch diameter
B. root diameter
C. internal diameter
D. central diameter

73. Answer: A
 A circle coinciding with a tangent to the
bottom of the tooth space.
A. root circle
B. pitch circle
C. addendum circle
D. dedendum circle

74. Answer: C
 The total depth of a tooth space, equal to
the addendum plus dedendum.
A. full depth
B. working depth
C. whole depth
D. dedendum

75. Answer: A
 The depth of tooth space below the pitch
circle.
A. dedendum
B. working depth
C. full depth
D. tooth depth

76. Answer: A
 The ratio of gear teeth to each mm pitch
diameter.????
A. diametral pitch
B. module
C. circular pitch
D. english module

77. Answer: B
 A machine tool in which abrasive wheel is
used as cutting tool to obtain a very
smooth finish.
A. drill
B. grinder
C. planer
D. shaper

78. Answer: D
 It is used to produce a variety of surfaces
by using a circular-type cutter with
multiple teeth.
A. grinding machine
B. shaper
C. drilling machine
D. milling machine

79. Answer: B
 It is used principally to machine flat or
plane surfaces with a single-point tool.
A. drill
B. shaper
C. planer
D. tool grinder

80. Answer: C
 Cutting a hole by means of rotating tool
or the work may revolve and to the tool
remain fixed in the lathe.
A. piercing
B. notching
C. boring
D. perforating

81. Answer: A
 One of the following is not a tap used for
cutting threads in holes.
A. tapping tap
B. plug tap
C. taper tap
D. bottoming tap

82. Answer: B
 An index o dividing head.
A. a part of a drill press
B. used to rotate the work
C. not used to cut helixes
D. always manually operated

83. Answer: B
 Galvanized iron is a term referring to iron
coated with:
A. tin
B. zinc
C. magnesium
D. aluminum

84. Answer: C
 The moment of inertia of a rectangle
whose base is “b” and height “h” about its
base is:
A. bh3/12
B. bh/36
C. bh3/3
D. bh2/4

85. Answer: C
 In usual spur gearing:
A. the pitch circle and the base circle
are the same
B. working depth includes the
clearance
C. tooth outline are usually involute
curves
D. tooth outline are always cycloidal
curves

86. Answer: A
 A stainless steel is obtained principally by
the use of the following alloying element.
A. chromium
B. tungsten
C. carbon
D. phenol

87. Answer: D
 One of the following is not a common
term relating to classification of fits.
A. tunking
B. snug
C. medium force fit
D. bound

88. Answer: B
 Hearingbone gears are gears which:
A. do not operate on parallel shaft
B. have a line of contact between the
teeth
C. consist of two left handed helical
gears
D. tend to produce thrust on the
shafts

89. Answer: A
 Internal stresses existing in a welded
connection:
A. are not relieve when the weld is
peened
B. are not relieve by heat treatment
C. maybe relieved when the weld is
peened
D. are relieved by x-ray analysis

90. Answer: B
 In general the design stress and factor of
safety are related as follows:
A. Design stress = ultimate stress times
factor of safety
B. Design stress = ultimate stress divided
by factor of safety
C. Design stress = design stress divided
by ultimate stress
D. Design stress = factor of safety
divided by design stress

91. Answer: B
 A group of thin steel strips for measuring
clearances.
A. distortion gage
B. feeler gage
C. line center gage
D. deflection gage

92. Answer: C
 A hand tool used to measure tension on
bolts.
A. indexer
B. torsionmeter
C. torque wrench
D. tensiometer

93. Answer: A
 A material that can wear away a
substance softer than itself.
A. abrasive
B. corrosive
C. tungsten
D. alloy

94. Answer: A
 The material used in high speed
processes.
A. high-speed steel
B. chromium
C. cast iron
D. carbon steel

95. Answer: C
 An alloy of copper and zinc.
A. chromium
B. bronze
C. brass
D. aluminum

96. Answer: B
 An alloy of copper, tin and small amount
of phosphorous.
A. chromium
B. bronze
C. brass
D. aluminum

97. Answer: C
 The process of working metals by the
application of sudden blows or by steady
pressure.
A. welding
B. extursion
C. forging
D. swaging

98. Answer: A
 A welding operation in which a non-
ferrous filler metals melts at a
temperature below that of the metal
joined but is heated above 450oC.
A. brazing
B. spot welding
C. gas welding
D. projection welding

99. Answer: C
 The operation of cooling a heated piece of
work rapidly by dipping it in water, brine
or oil.
A. tempering
B. annealing
C. quenching
D. normalizing

100. Answer: A
 A machine tool used to machine flat
surfaces.
A. shaper
B. planer
C. grinder
D. lathe