MD Elements

C. tachometer

1. Device used to measure accurately speed:

D. interference of metal

2. When the hole is smaller than the shaft, it will take pressure to put the parts together. The allowance is said to be negative and is termed:

D. Conservation of momentum and Conservation of energy

3. When two elastic bodies collide, which of the following laws can be used to solve for the resulting velocity?

A. plasticity

4. The ability of a metal to be deformed considerably without rupture is called:

C. ductility

5. Permanent deformation or strain may occur without fracture:

D. kinematics

6. It is a science of motion that can be solved in terms of scalar or vector algebra:

C. kinematics

7. Branch of dynamics that deals with the pure motion of a body without reference to the forces producing the motion:

A. friction

8. Resistance to motion:

A. primary stress

9. A stress that is developed and necessary to maintain equilibrium between external forces and internal resistance:

B. keyways

10. It is used to transmit torque from a shaft to a hub:

C. c-clamp

11. Tool used to hold the shaft and the key tightly in place:

D. gear teeth

12. It transmits rotary motion and torque:

C. stress

13. Load per unit area is:

B. modulus of elasticity

14. It is the ratio of stress to strain:

A. stress

15. It is the intensity of the internal resistance of a material to deformation:

C. stress concentration factor

16. The ratio of the highest unit stress in a member to the nominal stress obtained by elementary formulas:

B. 9.81 m/s²

17. Value of acceleration due to gravity:

A. 32.2 ft/s²

18. Value of acceleration due to gravity in English units:

A. tensile stress

19. Stress that occurs when a material is being pulled apart:

B. compression stress

20. Stress due to axial load that pushes:

A. shear stress

21. Stress due to tangential load:

C. tangential load

22. Load that causes shearing:

D. stress

23. Load per unit area:

A. compression

24. If load is axial and pushing:

C. torsion

25. If load is axial and twisting:

C. elastic limit

26. The maximum stress a material can withstand without permanent deformation:

D. fatigue

27. Failure of a material due to repeated loading:

B. beam

28. A structural member subjected to a transverse load:

D. shearing stress

29. Tangential stress in a material:

A. angle of twist

30. The angle of rotation due to torsion:

C. torque

31. A force that causes rotation:

B. rivets

32. A type of permanent fastener:

D. fillet weld

33. Weld with triangular cross-section:

A. square thread

34. A type of thread commonly used for power transmission:

C. load

35. Any force that causes stress:

A. ductility

36. The ability of a material to be drawn into wire:

B. malleability

37. The ability of a material to be hammered into sheets:

C. toughness

38. The ability of a material to absorb energy before fracturing:

B. resilience

39. The ability of a material to absorb energy within elastic range:

A. fatigue limit

40. Maximum stress that a material can withstand for infinite cycles without failure:

D. factor of safety

41. Ratio of strength to allowable stress:

C. bearing stress

42. Contact stress between two bodies:

A. surface finish

43. The texture of a surface:

B. taper

44. A conical shape in machining:

D. yield strength

45. Stress at which material starts to deform plastically:

C. ultimate strength

46. Maximum stress a material can withstand:

A. modulus of resilience

47. The amount of energy absorbed per unit volume up to elastic limit:

D. Poisson's ratio

48. Ratio of lateral strain to longitudinal strain:

B. endurance limit

49. The stress below which a material can withstand infinite loading cycles:

C. brittle

50. A material that fractures with little or no plastic deformation:

A. cold working

51. The yield strength of a regular yellow brass (65 to 75% Cu, 30 to 35% Zn) can be increased /improved by:

C. 0.20

52. Used in as cast condition steel casting with carbon content less than __ % C.

A. cast iron

53. Liners normally made of:

A. yield strength

54. Endurance strength is nearly proportional to the ultimate strength but not with:

B. crucible furnace

55. A furnace in melting non-ferrous metals:

C. induction furnace

56. A furnace used in melting ferrous metals:

C. 0.56

57. The assumption in the detailed design of rim thickness and depth of bead is ___ circular pitch (PC).

D. chordal thickness

58. Tooth width measured along the chord at the pitch circle:

A. micrometer

59. The best instrument for measuring a thousand of an inch:

C. Southeast Asia Iron and Steel Institute

60. All are associated with standard material specification except:

A. plain scriber

61. Machine tool used for laying straight lines on metal surfaces made of sharp tool steel:

C. clearance

62. It is the difference of addendum and dedendum which is equivalent to the whole depth less working depth.

B. spindle gear

63. A lathe machine threading mechanism:

D. concurrent forces

64. Separate forces which can be so combined are called:

C. inertia

65. That property of matter which causes it to resist any change in its motion or state of rest:

A. interference of metal

66. Negative allowance is also called:

B. center cut

67. Which of the following is not used to resemble the shape of tool bit?

A. square thread

68. A kind of thread in which the width of the thread is approximately equal to the depth:

C. tempering

69. Reheating to a temperature below the transformation range, followed by desired cooling:

A. 1.25-4

70. For moderate speed of mating gears, the ideal ratio of contact is:

A. Poisson's ratio

71. Ratio of unit lateral deformation to unit longitudinal deformation:

A. Turret lathe

72. A lathe with multiple cutting stations:

A. major diameter

73. Nominal diameter of bolts is the:

A. screw thread

74. Major and minor diameters are commonly used in:

D. lead

75. The distance a helical gear or worm thread moves axially in one revolution:

C. length of engagement

76. Length of contact between two mating parts in a screw and nut threads measured axially:

B. uniform motion

77. If the velocity of a mass is small all the time during which motion takes place is called:

C. Poisson's ratio

78. The property of material that relates the lateral strain to longitudinal strain:

B. offset bearings

79. Also called eccentrically loaded bearing is:

C. twisted in opposite direction

80. In the selection of wire rope, regular lay means wires and strands are:

C. angle of obliquity

81. In involute teeth, the pressure angle is often termed as:

B. addendum

82. Height of tooth above pitch circle or the radial distance between pitch circle and top land:

C. to disconnect or connect the drive at will

83. The function of clutch in the machine is:

D. 53

84. Number of pinion rotations to mesh with same gear tooth pair again with a 53T gear and 30T pinion:

A. lead angle

85. The angle made by the helix of the thread at the pitch diameter:

C. 0.0010

86. Rule of thumb in journal bearing design for clearance ratio:

D. bh3/3

87. Moment of inertia of a rectangle about its base:

B. 5 inches

88. Cold rolled shafting is not available in diameter larger than:

B. 10 to 13

89. Factor of safety for cast iron flywheels:

A. couple

90. A pair of equal and opposite (not collinear) forces that tend to cause rotation:

B. English module

91. The ratio of the pitch diameter in inches to the number of teeth:

C. retarded motion

92. When the motion is diminished or decreasing is called:

A. ft-lb

93. ___ is a unit of energy:

B. steel

94. Preferred gear material when high strength and durability are required:

D. non concurrent

95. ___ forces when action is parallel:

A. linear momentum

96. Product of mass and velocity of the center of gravity:

C. pitch

97. Distance between similar, equally spaced tooth surfaces in a given direction:

D. force

98. Could be defined as simply push or pull:

C. couple

99. Opposite directional forces equal in magnitude and parallel:

D. scalar

100. Quantities such as time, volume and density are completely specified when their magnitude is known: