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MD ELEMENTS 1-5 > ELEMENTS 4 > Flashcards

ELEMENTS 4 Flashcards

1
Q
  1. Refers to the unit that can be moved longitudinally along the swivel table and is clamped in position by two bolts one an either side of the base.

A. Foot stock
B. Head stock
C. Tail stock
D. Cross stock

A

B. Head stock

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2
Q
  1. An instrument used for determining the relative hardness of materials by a drop and rebound method.

A. Scleroscope
B. Rockwell Hardness Tester
C. Universal Testing Machine
D. Brinell Hardness Tester

A

A. Scleroscope

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3
Q
  1. An instrument used for measuring the degree of surface roughness in micro inches.

A. Caliper
B. Micrometer
C. Profilometer
D. Scleroscope

A

C. Profilometer

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4
Q
  1. Refers to the portion of the circumference of a grinding wheel touching the work being ground.

A. Area of contact
B. Arc of contact
C. Angle of contact
D. Contact ratio

A

B. Arc of contact

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5
Q
  1. The spindle of the grinding machine on which the wheel is mounted.

A. Bushing
B. Arbor
C. Bearing
D. Fluting

A

B. Arbor

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6
Q
  1. A device for holding grinding wheels of special shape or the working piece being grounded.

A. Head stock
B. Fixtures
C. Jigs
D. Chuck

A

D. Chuck

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7
Q
  1. Grinding the grooves of a twist drill or tap.

A. Fluting
B. Flaring
C. Lapping
D. Honing

A

A. Fluting

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8
Q
  1. The dulling of the cutting particles of a grinding wheel resulting in a decreased rate of cutting is called.

A. Grinding
B. Glazing
C. Fluting
D. Lapping

A

B. Glazing

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9
Q
  1. Grinding the gates, fins and sprues from casting is termed as

A. Honing
B. Tumbling
C. Snagging
D. Truing

A

C. Snagging

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10
Q
  1. The process of increasing the cross-sectional area of a given portion or possibly of the whole piece.

A. Forging
B. Upsetting
C. Spreading
D. Drawing

A

B. Upsetting

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11
Q
  1. For ordinary steel, the modulus of elasticity usually falls between _____ million
    pounds.

A. 20 to 31
B. 35 to 45
C. 20 to 35
D. 25 to 30

A

A. 20 to 31

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12
Q
  1. The modulus of elasticity for metals in compression is usually taken as that in:

A. Tension
B. Bearing
C. Yield
D. Ultimate

A

A. Tension

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13
Q
  1. Which of the following is the ratio of moment and stress?

A. Strain
B. Section modulus
C. Contraction
D. Passions ratio

A

B. Section modulus

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14
Q
  1. What is the flexural stress when of a symmetrically cross-section beam when the
    vertical shear is maximum?

A. Infinity
B. Zero
C. Maximum
D. Minimum

A

B. Zero

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15
Q
  1. The riveted joints in ASME Code has a design surface compressive stress _______ higher than the design tensile stress.

A. 70%
B. 60%
C. 35%
D. 50%

A

B. 60%

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16
Q
  1. What is the ratio of the minimum strength of joint to the strength of solid joint in the pressure vessel?

A. Efficiency
B. Relative strength
C. Performance factor
D. Joint efficiency

A

B. Relative strength

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17
Q
  1. What is the usual factor of safety for a pressure vessel?

A. 4
B. 1.5
C. 3
D. 5

A

D. 5

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18
Q
  1. It is the permissible variation of the size.

A. Tolerance
B. Limits
C. Fits
D. None of these

A

A. Tolerance

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19
Q
  1. Considering that there is no fit, what is the permissible liberal tolerance in
    machining work?

A. ± 0.010
B. ± 0.090
C. ± 0.020
D. ± 0.050

A

A. ± 0.010

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20
Q
  1. Which of the following is a tolerance where the size of a part may be larger only or smaller only, than the given dimension.

A. Unilateral
B. Lateral
C. Bilateral
D. None of these

A

A. Unilateral

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21
Q
  1. The process of lengthening a piece of stock while the cross-sectional area is being
    reduced.

A. Tapping
B. Honing
C. Drawing
D. Upsetting

A

C. Drawing

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22
Q
  1. An alloy of copper, tin and antimony.

A. Bearing
B. Babbitt
C. Iconel
D. Titanium

A

B. Babbitt

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23
Q
  1. Sometimes used for soldering bright tin.

A. Tallow
B. Sal ammonia
C. Tinning
D. Rosin

A

D. Rosin

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24
Q
  1. A very effective flux for soldering galvanized iron and zinc.

A. Soldering pastes
B. Muriatic acid
C. Zinc chloride
D. Cut acid

A

B. Muriatic acid

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25
Q
  1. The process of checking the surface of a piece by rolling depressions into the surface.

A, Honing
B. Knurling
C. Snagging
D. Reaming

A

B. Knurling

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26
Q
  1. The groove providing for the cutting faces of the threads or teeth, chip passage and lubrication.

A. Heel
B. Land
C. Flute
D. Thread relief

A

C. Flute

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27
Q
  1. The process of cutting internal threads by means of a cutting tool.

A. Tapping
B. Reaming
C. Chamfering
D. Honing

A

A. Tapping

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28
Q
  1. The operation of producing a circular hole by removing solid metal.

A. Knurling
B. Reaming
C. Boring
D. Drilling

A

D. Drilling

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29
Q
  1. The surface below the cutting edge.

A. Face
B. Flank
C. Nose
D. Side relief

A

B. Flank

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30
Q
  1. The surface over which the chip flows.

A. Face
B. Flank
C. Nose
D. None of these

A

C. Nose

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31
Q
  1. A tolerance where the size of a part permitted to be either larger or smaller than the given dimension.

A. Unilateral
B. Lateral
C. Bilateral
D. None of these

A

C. Bilateral

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32
Q
  1. Which of the following is the basis for ASA fits?

A. Basic number system
B. Basic hole system
C. Basic size system
D. Unit system

A

B. Basic hole system

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33
Q
  1. When the hole is smaller than the shaft, it will take force or pressure to put the cold parts together. In such case the allowance is negative. Which of the following terms is appropriate for such allowance?

A. Negative fits of metals
B. Interference of metals
C. Positive fits of the shaft
D. Intangible fits

A

B. Interference of metals

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34
Q
  1. What is the direction of the predominant surface pattern?

A. Smoothness
B. Waviness
C. Lay
D. Roughness

A

C. Lay

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35
Q
  1. It is the irregularities of departures from the nominal surface of greater spacing than roughness.

A. Waviness
B. Roughness
C. Lay
D. Smoothness

A

A. Waviness

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36
Q
  1. It is the surface finish of micrometer in rms.

A. 1
B. 2
C. 3
D. 4

A

A. 1

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37
Q
  1. Which of the following gears has the simplest type of teeth?

A. Helical gears
B. Spur gears
C. Bevel gears
D. Worm gears

A

B. Spur gears

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38
Q
  1. In gears, an imaginary circle on which the level arm is based in:

A. Base circle
B. Pitch circle
C. Addendum circle
D. Clearance circle

A

B. Pitch circle

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39
Q
  1. It is the circle tangent to the addendum of the meshing gears.

A. Clearance circle
B. Base circle
C. Addendum circle
D. Pitch circle

A

A. Clearance circle

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40
Q
  1. The distance form a point on one gear to the corresponding point measured along the base circle.

A. Normal pitch
B. Circular pitch
C. Axial pitch
D. Diametral pitch

A

A. Normal pitch

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41
Q
  1. It measures the downward slope of the top surface of the tool from the nose to the rear along the longitudinal.

A. Side cutting edge angle
B. End relief angle
C. Side rake angle
D. Back rake angle

A

D. Back rake angle

42
Q
  1. Which one is the hardness material?

A. Steel
B. Diamond
C. Bronze
D. Brass

A

B. Diamond

43
Q
  1. It measures the slope of top surface of the tool to the side in a direction perpendicular to the longitudinal axis.

A. Side rake angle
B. Side cutting edge angle
C. Side relief edge angle
D. End relief angle

A

A. Side rake angle

44
Q
  1. A type of bonding material, which is made of clay and water.

A. Resinoid bond
B. Vitrified bond
C. Shellac bond
D. Rubber bond

A

B. Vitrified bond

45
Q
  1. The process of producing an extremely accurate highly finished surface.

A. Lapping
B. Buffing
C. Polishing
D. Honing

A

A. Lapping

46
Q
  1. It is surface finishing process by which scratches and toll marks are removed with a
    polishing wheel.

A. Honing
B. Lapping
C. Polishing
D. Buffing

A

C. Polishing

47
Q
  1. It is used for holding straight shank drills in the spindle of the machine when drilling.

A. Drill chuck
B. Chuck key
C. Floating holder
D. Magic chuck

A

A. Drill chuck

48
Q
  1. Continuous chips are formed when cutting

A. Brittle materials
B. Ductile materials
C. Amorphous plastic materials
D. Free cutting non ferrous alloys only

A

B. Ductile materials

49
Q
  1. The rake angle of a cutting tool.

A. Controls the chip formation
B. Prevents rubbing
C. Determine the profile of load
D. Determine whether the cutting action is oblique or orthogonal

A

A. Controls the chip formation

50
Q
  1. Back rake angle for HSS single point cutting tool to machine free cutting brass is

A. 0o
B. 5o
C. 10o
D. 15o

51
Q
  1. A line passing through the pitch point that is tangent to both base circles of a gear is:

A. Pressure line
B. Perpendicular line
C. Tangent line
D. Center line

A

A. Pressure line

52
Q
  1. Which of the following is the contact ratio for a good gear design?

A. 1.5 : 1
B. 1 : 1.3
C. 1 : 3
D. 1.2 : 2

A

A. 1.5 : 1

53
Q
  1. In pressure vessels, which of the following resists internal pressure through tension?

A. Shell-type element
B. Cam type element
C. Plate-type element
D. Spherical type element

A

A. Shell-type element

54
Q
  1. It is the study of the body’s motion independent of the forces on the body.

A. Kinetics
B. Dynamics
C. Kinematics
D. Mechanics

A

C. Kinematics

55
Q
  1. What is the reciprocal of the velocity ratio?

A. Train value
B. Ratio factor
C. Modular value
D. None of these

A

A. Train value

56
Q
  1. It is a type of bolt finished all over and has usually having coarse threads.

A. Coupling bolt
B. Stud bolt
C. Machine bolt
D. Automobile bolt

A

A. Coupling bolt

57
Q
  1. It is a type of bolt distinguished by a short portion of the shank underneath the head being square or finned or ribbed.

A. Coupling bolt
B. Stud bolt
C. Machine bolt
D. Carriage bolt

A

D. Carriage bolt

58
Q
  1. It is a type of bolt threaded on both ends and can be used where a through bolt impossible.

A. Coupling bolt
B. Carriage bolt
C. Stud bolt
D. Machine bolt

A

C. Stud bolt

59
Q
  1. Which of the following is not a type of bolt?

A. Stud bolt
B. Steel bolt
C. Machine bolt
D. Coupling bolt

A

B. Steel bolt

60
Q
  1. It is a locking device that is used to maintain pressure between threads of the bolt and nut.

A. Gasket
B. Lock washer
C. Lock nuts
D. Filler

A

B. Lock washer

61
Q
  1. In the list of process given below, the chip removal process is the

A. Die casting
B. Extruding
C. Forging
D. Broaching

A

D. Broaching

62
Q
  1. The twist drill has its point thinned in order to

A. Reduce the hole diameter
B. Increase the rake angle
C. Locate in the center punch mark
D. Reduce the axial pressure

A

D. Reduce the axial pressure

63
Q
  1. In the list of process given below, the non-chip removal process is

A. Grinding
B. Spinning on lathe
C. Thread cutting
D. Milling

A

B. Spinning on lathe

64
Q
  1. A reamer is used to correct the

A. Size and roundness of a drilled hole
B. Size and position of a drilled hole
C. Finish and position of a drilled hole
D. Finish and depth of a drilled hole

A

A. Size and roundness of a drilled hole

65
Q
  1. An oversize hole is produced by a drill if

A. Lips of drill are of unequal length
B. Feed is too high
C. Insufficient coolant is used
D. Cutting speed is too high

A

A. Lips of drill are of unequal length

66
Q
  1. Cemented carbide tipped tools can machine metal even when their cutting elements get heated up to a temperature of

A. 1650oC
B. 1000oC
C. 1400oC
D. 1800oC

67
Q
  1. Cemented carbide tools are usually provided with:

A. Positive back rake angle
B. Neutral back rake angle
C. Negative back rake angle
D. None of these

A

C. Negative back rake angle

68
Q
  1. The point angle of twist drill to machine is

A. 112o
B. 116o
C. 118o
D. 120o

69
Q
  1. The cutting speed of HSS twist drill to machine gray cast iron is

A. 10 – 20 m/min
B. 15 – 25 m/min
C. 20 – 30 m/min
D. 25 – 40 m/min

A

D. 25 – 40 m/min

70
Q
  1. The recommended value of rake angle for machining aluminum with cutting tools made up of diamond tool.

A. 0o
B. 15o
C. 35o
D. 45o

71
Q
  1. What is the large wood screw used to fasten machinery and equipment?

A. Lag screw
B. Loss screw
C. Wood screw
D. Cross screw

A

A. Lag screw

72
Q
  1. What is the overall length of the spring when it is compressed until all adjacent
    coils touched?

A. Free length
B. Solid length
C. Compressed length
D. Expansion length

A

B. Solid length

73
Q
  1. What is the minimum length of contact in a tapped hole for cast iron?

A. 1.7 D
B. 1.5 D
C. 1.2 D
D. 2.1 D

74
Q
  1. It is the ratio of the mean diameter of coil over the coil diameters.

A. Wahl factor
B. Spring index
C. Coil ratio
D. Lead scale

A

B. Spring index

75
Q
  1. It is the length of a coil spring under no load.

A. Compressed length
B. Free length
C. Solid height
D. None of these

A

B. Free length

76
Q
  1. In general, the steel springs are made of relatively or relative high carbon steel usually:

A. 5%
B. Less than 0.5%
C. More than 0.5%
D. 7.5%

A

C. More than 0.5%

77
Q
  1. It is a low cost spring material suitable where service is not severe and dimensional precision is not needed.

A. Helical spring wire
B. Stainless steel
C. Hard drawn wire spring
D. Copper

A

C. Hard drawn wire spring

78
Q
  1. What is the hard drawn (80% reduction) spring wire made of high carbon steel?

A. Oil tempered wire
B. Music wire
C. Tension wire
D. Chromium wire

A

B. Music wire

79
Q
  1. Which of the following wires with good quality and is used for impact loading?

A. Hard drawn wire
B. Song wire
C. Helical spring wire
D. Chromium-silicon wire

A

D. Chromium-silicon wire

80
Q
  1. When heated-treated wire is coiled cold, It should be stress relieved for bending stress and after cooling is heated at some:

A. 4000F
B. 6000F
C. 7000F
D. 5000F

81
Q
  1. The cutting speeds of HSS milling cutter to machine aluminum is

A. 140 – 200 m/min
B. 160 – 220 m/min
C. 180 – 240 m/min
D. 200 – 260 m/min

A

C. 180 – 240 m/min

82
Q
  1. The major factors, which determine the rpm of milling cutter, are the material being cut and the ________.

A. Number of teeth in cutter
B. Diameter of cutter
C. Time allowed to complete the job
D. Depth of cutter

A

C. Time allowed to complete the job

83
Q
  1. Friction between chip and tool may be reduced by

A. Increased sliding
B. Increased shear angle
C. Use of low tool finish
D. None of these

A

A. Increased sliding

84
Q
  1. The studs used as a coolant machine shop consists of

A. Solution of detergent and water
B. A straight mineral oil
C. An emulsion of oil and water
D. A chemical solution

A

C. An emulsion of oil and water

85
Q
  1. The recommended value of rake angle for machine aluminum with cutting tools made up of high speed steel tool.

A. 5o
B. 10o
C. 15o
D. 35o

86
Q
  1. Milling cutter is sharpened on

A. Tool and cutter grinder
B. Cylindrical grinder
C. Centerless grinder
D. Surface grinder

A

A. Tool and cutter grinder

87
Q
  1. 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

A

B. High melting point and low thermal conductivity

88
Q
  1. A process can be considered as a hot working process if the material is heated.

A. Below recrystallization temperature
B. Above rescrystallization temperature
C. Below normal temperature
D. Above normal temperature

A

B. Above rescrystallization temperature

89
Q
  1. Grinding is

A. Metal fusing operation
B. Metal powdering operation
C. Metal finishing operation
D. None of these

A

C. Metal finishing operation

90
Q
  1. Grinding is done wherever

A. Other machining operation cannot be carried out
B. A large amount of material is to be removed
C. High accuracy is required
D. None of these

A

C. High accuracy is required

91
Q
  1. Which of the following is not a function of spring?

A. Absorbs energy
B. Source of potential energy
C. Measure weight
D. Measure thickness

A

D. Measure thickness

92
Q
  1. Which of the following is the type of spring made in the form of dished washer?

A. Air spring
B. Bellevile spring
C. Volute spring
D. Motor spring

A

B. Bellevile spring

93
Q
  1. What is the type of failure due to unstability?

A. Buckling
B. Slenderness ratio
C. Stability
D. Euler’s failure

A

A. Buckling

94
Q
  1. What type of formula that is best applied to a very slender column?

A. Column formula
B. Slenderness formula
C. Moment formulas
D. Euler formula

A

D. Euler formula

95
Q
  1. If two principal stresses is zero, the state of stress is:

A. Biaxial
B. Mono-axial
C. Uniaxial
D. Biaxial

A

C. Uniaxial

96
Q
  1. What do you call the system that has finite values of principal stresses?

A. Triaxial
B. Uniaxial
C. Mono-axial
D. Biaxial

A

A. Triaxial

97
Q
  1. A screw that requires positive torque to lower the load or to loosen the screw if it has been turned tight against a resistance.

A. Self locking screw
B. Lock screw
C. Self screw
D. Power screw

A

D. Power screw

98
Q
  1. What is the rotating member used in transmitting power?

A. Shaft
B. Counter shaft
C. Axle
D. Washer

99
Q
  1. For machinery shafts, the permissible deflection is approximately:

A. 0.02 in./ft
B. 0.03 in./ft
C. 0.01 in/ft
D. 0.05 in./ft

A

A. 0.02 in./ft

100
Q
  1. For shafts, the shear due to bending is a maximum at the neutral plane where the normal stress is:

A. Minimum
B. Constant
C. Maximum also
D. Zero

MD ELEMENTS 1-5 (5 decks)

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