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MD ELEMENTS PER 50 > E4_1-50 > Flashcards

E4_1-50 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

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

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

A

B. Babbitt

23
Q
  1. Sometimes used for soldering bright tin.

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

A

D. Rosin

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

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

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

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

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

29
Q
  1. The surface below the cutting edge.

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

A

B. Flank

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

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

A

C. Nose

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

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

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

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

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

A

C. Lay

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

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

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

A

A. 1

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

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

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

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

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

A

A. 0o

MD ELEMENTS PER 50 (10 decks)

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