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MD ELEMENTS PER 50 v2 > E10_1 > Flashcards

E10_1 Flashcards

1
Q
  1. What is the lightest known metal?

A. Mercury
B. Steel
C. Chromium
D. Aluminum

A

D. Aluminum

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2
Q
  1. Material having a high electrical resistance and should not be used as conductor of electrical current.

A. Magnesium
B. Copper
C. Nickel
D. Iron

A

D. Iron

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3
Q
  1. The property that characterizes a material ability to be drawn into a wire is known as:

A. Plasticity
B. Elasticity
C. Ductility
D. Utility

A

C. Ductility

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4
Q
  1. Stress relieving is also ______ for the purpose of reducing the internal stress of steel material / metal.

A. Quenching
B. Normalizing
C. Tempering
D. Drawing

A

A. Quenching

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5
Q
  1. A carbon content in the range of _____ in steel readily responds to heat treatment.

A. 0.35 to 0.40% C
B. 0.28 to 0.30% C
C. 0.18 to 0.25% C
D. 0.12 to 0.15% C

A

A. 0.35 to 0.40% C

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6
Q
  1. It indicates how many times a volume of material is heavier than an equal volume of water.

A. Specific gravity
B. Specific volume
C. Specific weight
D. Specific density

A

A. Specific gravity

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7
Q
  1. Nickel – Chromium – Molybdenum steel designation SAE ________.

A. 81 xx
B. 74 xx
C. 94 xx
D. 64 xx

A

C. 94 xx

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8
Q
  1. Moment of inertia is also called:

A. Modulus of elasticity
B. Weep strength
C. Radius of gyration
D. None of these

A

D. None of these

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9
Q
  1. It is hardening treatment whereby a cast metal is being heated to a very high temperature then suddenly subjected to rapid cooling to improve hardenability of wear resistance is called:

A. Annealing
B. Normalizing
C. Tempering
D. Quenching

A

D. Quenching

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10
Q
  1. A good eneral purpose deoxidizer which promotes fine grain in steel.

A. Copper
B. Magnesium
C. Molybdenum
D. Silicon

A

D. Silicon

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11
Q
  1. This process is known as bonderizing when used as a printer for paints.

A. Parkerizing
B. Honing
C. Hard surfacing
D. Galvanizing

A

A. Parkerizing

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12
Q
  1. A grinding operation using stones moving in a reciprocating pattern. Leaves a characteristic cross-hatch pattern.

A. Parkerizing
B. Honing
C. Hard surfacing
D. Galvanizing

A

B. Honing

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13
Q
  1. The creation (by spraying, platting, fusion welding or heat treatment) of a hard metal surface in a softer product.

A. Parkerizing
B. Honing
C. Hard surfacing
D. Galvanizing

A

C. Hard surfacing

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14
Q
  1. A zinc coating applied to low carbon steel to improve corrosion resistance. The coating can be applied in a hot dip bath, by electroplating or by dry tumbling (sheradizing).

A. Parkerizing
B. Honing
C. Hard surfacing
D. Galvanizing

A

D. Galvanizing

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15
Q
  1. The lector-deposition of a coating onto the workpiece. Electrical current is used to drive ions in solution to the part. The workpiece is the cathode I the electrical circuit.

A. Electroplating
B. Calorizing
C. Burnishing
D. Buffing

A

A. Electroplating

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16
Q
  1. The diffusing of aluminum into a steel surface, producing an aluminum oxide that protects the steel from high-temperature corrosion.

A. Electroplating
B. Calorizing
C. Burnishing
D. Buffing

A

B. Calorizing

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17
Q
  1. How do you call the process of fine grinding or peening operation designed to leave a characteristic pattern on the surface of the workpiece.

A. Electroplating
B. Calorizing
C. Peening
D. Buffing

A

C. Peening

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18
Q
  1. A fine finishing operation, similar to polishing using a very fine polishing compound.

A. Elactroplating
B. Calorizing
C. Burnishing
D. Buffing

A

D. Buffing

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19
Q
  1. Rotating parts in a barrel filled with an abrasive or non-abrasive medium. Widely used to remove burns, flash, scale and oxides.

A. Abrasive cleaning
B. Calorizing
C. Barrel finishing
D. Anodizing

A

C. Barrel finishing

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20
Q
  1. An electroplating-acid bath oxidation process for aluminum and magnesium. The workpiece is the anode in the electrical circuit.

A. Abrasive cleaning
B. Tumbling
C. Barrel finishing
D. Anodizing

A

D. Anodizing

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21
Q
  1. Treatment process that produces a residual compressive stress at the surface and residual tension on the inside that results in considerable increase in fatigue strength for members on torsion / bending is known as:

A. Partial quenching
B. Heavy oil quenching
C. Quenching
D. Shallow quenching

A

D. Shallow quenching

22
Q
  1. The flux that should be provided in soldering electrical connection or commutator wires as it tends to corrode the connections.

A. Sal ammoniac
B. Zinc chloride
C. Stearing
D. Acid fluxes

A

D. Acid fluxes

23
Q
  1. The characteristics of tool steel sustain shocks and major impacts is due to its:

A. Toughness
B. Stiffness
C. Ductility
D. Machinability

A

A. Toughness

24
Q
  1. The application of electrical current to the corrosion circuit to counter the corrosion reaction is called:

A. Cathodic protection
B. Sacrificial anodes method
C. Chemical corrosion process
D. Galvanic action

A

A. Cathodic protection

25
Q
  1. A major component of cast steel is:

A. Silicon
B. Iron
C. Manganese
D. Chromium

A

B. Iron

26
Q
  1. Normally, cast iron contains 2% carbon or more and silicon in the range of ____ %.

A. 1 to3
B. 1 to 4
C. 2 to 3
D. 1 to 6

A

A. 1 to3

27
Q
  1. The material for engine radiation is usually made of ______.

A. Yellow brass
B. Silicon brass
C. Admiralty brass
D. Navy brass

A

A. Yellow brass

28
Q
  1. A problem-by product used as an electrode in an electric arc furnace melting operations is called:

A. Anthracite coke
B. Foundry coke
C. Graphite electrodes
D. Bituminous coke

A

C. Graphite electrodes

29
Q
  1. Which of the following does not effect the tensile strength of steel?

A. Sulfur
B. Cobalt
C. Phosphorus
D. Boron

A

D. Boron

30
Q
  1. Alloy steel axle under repeated load / stress will eventually fail if the load / stress is above the endurance for the steel under consideration. The endurance limit of the steel is:

A. Equal to the allowable stress of the module of elasticity
B. Equal to half of the ultimate strength
C. Equal to module of elasticity
D. Equal to 80% of the elastic limit

A

B. Equal to half of the ultimate strength

31
Q
  1. Shooting sand (i.e. sand blasting), steel grit, or steel shot against workpieces to remove casting sand, scale and oxidation.

A. Abrasive cleaning
B. Tumbling
C. Barrel finishing
D. Anodizing

A

A. Abrasive cleaning

32
Q
  1. What is the other term of barrel finishing?

A. Abrasive cleaning
B. Tumbling
C. Barrel finishing
D. Anodizing

A

B. Tumbling

33
Q
  1. Brittle materials produce discrete fragments, known as:

A. Chip breaker grooves
B. Discontinuous chips
C. Non-segmented chips
D. Type-two chips

A

B. Discontinuous chips

34
Q
  1. Ductile materials form long, helix-coiled string chips known as:

A. Continuous chips
B. Discontinuous chips
C. Segment chips
D. Type-one chips

A

A. Continuous chips

35
Q
  1. Often ground in the cutting tool face to cause long chips to break into shorter, more manageable pieces.

A. Chip breaker grooves
B. Discontinuous chips
C. Non-segmented chips
D. Type-two chips

A

A. Chip breaker grooves

36
Q
  1. What is the typical chip thickness ratio?

A. 0.50
B. 0.75
C. 0.25
D. 1.00

A

A. 0.50

37
Q
  1. The angle at which the tool meets the workpiece is characterized by:

A. True rake angle
B. Clearance angle
C. Relief angle
D. Wedge angle

A

A. True rake angle

38
Q
  1. Which of the following is the sum of the rake clearance and wedge angles?

A. 90 deg.
B. 180 deg.
C. 45 deg.
D. 75 deg.

A

A. 90 deg.

39
Q
  1. What is the relative velocity difference between the tool and the workpiece?

A. Cutting speed
B. Chip velocity
C. Shear velocity
D. Rake velocity

A

A. Cutting speed

40
Q
  1. How do you call the velocity of the chip relative to the tool face?

A. Cutting speed
B. Chip velocity
C. Shear velocity
D. Rake velocity

A

B. Chip velocity

41
Q
  1. Mirror finish has surfaces fitness of ______ rms.

A. 1
B. 2 to 8
C. 1 to 3
D. 2 to 5

A

A. 1

42
Q
  1. Chromium steel to include heat and corrosion resistant designation.

A. SAE 56xx
B. SAE 514xx
C. SAE 61xx
D. SAE 9xx

A

B. SAE 514xx

43
Q
  1. Non-metallic material of high melting temperature being used as furnace lining.

A. Quartz bricks
B. Refractories
C. Silica sand
D. Dolomite clay bricks

A

B. Refractories

44
Q
  1. In greater quantity, this element is harmful to the molten ferrous metal.

A. Silicon
B. Aluminum
C. Oxides
D. Sulfur

A

D. Sulfur

45
Q
  1. Silicon – manganese steel designation, SAE ______.

A. 72xx
B. 40xx
C.92xx
D.9xx

A

C.92xx

46
Q
  1. Cold drawing is also called:

A. Hard drawn
B. Oxidized steel
C. Cold lap steel
D. Strain hardening

A

A. Hard drawn

47
Q
  1. The brittleness in steel elevated temperature is known as:

A. Hard drawn
B. Cold lap
C. Red shortness
D. Residual stresses

A

C. Red shortness

48
Q
  1. Material may be stretched and still returns to its former form / condition upon release of force is called:

A. Plasticity
B. Modulus of elasticity
C. Ductility
D. Elastic limit

A

D. Elastic limit

49
Q
  1. What is the SAE specification number of molybdenum – chromium – nickel?

A. 48xx
B. 47xx
C. 46xx
D. 45xx

A

B. 47xx

50
Q
  1. Galvanized iron is a term referring to iron coated with:

A. Aluminum
B. Tin
C. Zinc
D. Manganese

A

C. Zinc

MD ELEMENTS PER 50 v2 (10 decks)

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