E10_1

Question 1

1. What is the lightest known metal?

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

Answer 1

D. Aluminum

Question 2

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

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

Answer 2

D. Iron

Question 3

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

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

Answer 3

C. Ductility

Question 4

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

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

Answer 4

A. Quenching

Question 5

5. 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

Answer 5

A. 0.35 to 0.40% C

Question 6

6. 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

Answer 6

A. Specific gravity

Question 7

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

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

Answer 7

C. 94 xx

Question 8

8. Moment of inertia is also called:

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

Answer 8

D. None of these

Question 9

9. 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

Answer 9

D. Quenching

Question 10

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

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

Answer 10

D. Silicon

Question 11

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

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

Answer 11

A. Parkerizing

Question 12

12. 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

Answer 12

B. Honing

Question 13

13. 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

Answer 13

C. Hard surfacing

Question 14

14. 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

Answer 14

D. Galvanizing

Question 15

15. 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

Answer 15

A. Electroplating

Question 16

16. 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

Answer 16

B. Calorizing

Question 17

17. 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

Answer 17

C. Peening

Question 18

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

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

Answer 18

D. Buffing

Question 19

19. 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

Answer 19

C. Barrel finishing

Question 20

20. 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

Answer 20

D. Anodizing

Question 21

21. 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

Answer 21

D. Shallow quenching

Question 22

22. 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

Answer 22

D. Acid fluxes

Question 23

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

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

Answer 23

A. Toughness

Question 24

24. 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

Answer 24

A. Cathodic protection

Question 25

25. A major component of cast steel is: A. Silicon B. Iron C. Manganese D. Chromium

Answer 25

B. Iron

Question 26

26. 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

Answer 26

A. 1 to3

Question 27

27. The material for engine radiation is usually made of ______. A. Yellow brass B. Silicon brass C. Admiralty brass D. Navy brass

Answer 27

A. Yellow brass

Question 28

28. 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

Answer 28

C. Graphite electrodes

Question 29

29. Which of the following does not effect the tensile strength of steel? A. Sulfur B. Cobalt C. Phosphorus D. Boron

Answer 29

D. Boron

Question 30

30. 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

Answer 30

B. Equal to half of the ultimate strength

Question 31

31. 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

Answer 31

A. Abrasive cleaning

Question 32

32. What is the other term of barrel finishing? A. Abrasive cleaning B. Tumbling C. Barrel finishing D. Anodizing

Answer 32

B. Tumbling

Question 33

33. Brittle materials produce discrete fragments, known as: A. Chip breaker grooves B. Discontinuous chips C. Non-segmented chips D. Type-two chips

Answer 33

B. Discontinuous chips

Question 34

34. Ductile materials form long, helix-coiled string chips known as: A. Continuous chips B. Discontinuous chips C. Segment chips D. Type-one chips

Answer 34

A. Continuous chips

Question 35

35. 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

Answer 35

A. Chip breaker grooves

Question 36

36. What is the typical chip thickness ratio? A. 0.50 B. 0.75 C. 0.25 D. 1.00

Answer 36

A. 0.50

Question 37

37. 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

Answer 37

A. True rake angle

Question 38

38. 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.

Answer 38

A. 90 deg.

Question 39

39. What is the relative velocity difference between the tool and the workpiece? A. Cutting speed B. Chip velocity C. Shear velocity D. Rake velocity

Answer 39

A. Cutting speed

Question 40

40. 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

Answer 40

B. Chip velocity

Question 41

41. Mirror finish has surfaces fitness of ______ rms. A. 1 B. 2 to 8 C. 1 to 3 D. 2 to 5

Answer 41

A. 1

Question 42

42. Chromium steel to include heat and corrosion resistant designation. A. SAE 56xx B. SAE 514xx C. SAE 61xx D. SAE 9xx

Answer 42

B. SAE 514xx

Question 43

43. Non-metallic material of high melting temperature being used as furnace lining. A. Quartz bricks B. Refractories C. Silica sand D. Dolomite clay bricks

Answer 43

B. Refractories

Question 44

44. In greater quantity, this element is harmful to the molten ferrous metal. A. Silicon B. Aluminum C. Oxides D. Sulfur

Answer 44

D. Sulfur

Question 45

45. Silicon – manganese steel designation, SAE ______. A. 72xx B. 40xx C.92xx D.9xx

Answer 45

C.92xx

Question 46

46. Cold drawing is also called: A. Hard drawn B. Oxidized steel C. Cold lap steel D. Strain hardening

Answer 46

A. Hard drawn

Question 47

47. The brittleness in steel elevated temperature is known as: A. Hard drawn B. Cold lap C. Red shortness D. Residual stresses

Answer 47

C. Red shortness

Question 48

48. 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

Answer 48

D. Elastic limit

Question 49

49. What is the SAE specification number of molybdenum – chromium – nickel? A. 48xx B. 47xx C. 46xx D. 45xx

Answer 49

B. 47xx

Question 50

50. Galvanized iron is a term referring to iron coated with: A. Aluminum B. Tin C. Zinc D. Manganese

Answer 50

C. Zinc