1. What is the process of separating a metal from its ore called?

A. Refining B. Smelting C. Extraction D. Distillation

2. Which of the following is not a ferrous metal?

A. Iron B. Steel C. Copper D. Cast Iron

3. What is the main component of bronze?

A. Copper B. Zinc C. Tin D. Iron

4. What is the process of heating and cooling metal to change its properties called?

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

5. Which of the following is an example of a non-ferrous metal?

A. Iron B. Copper C. Steel D. Cast Iron

6. What is the process of shaping metal by hammering or pressing called?

A. Forging B. Casting C. Welding D. Extrusion

7. Which of the following is not a common method of metal finishing?

A. Painting B. Powder coating C. Galvanizing D. Freezing

8. What is the process of coating a metal with a layer of zinc to prevent rusting called?

A. Galvanizing B. Electroplating C. Anodizing D. Coating

9. What is the process of melting metal and pouring it into a mold called?

A. Forging B. Casting C. Welding D. Extrusion

10. Which of the following metals is the most commonly used for electrical wiring?

A. Aluminum B. Copper C. Gold D. Silver

11. Which of the following is a non-ferrous metal?

A) Iron B) Copper C) Steel D) Zinc

12. Which of the following is a type of steel?

A) Aluminium steel B) Stainless steel C) Copper steel D) Silver steel

13. Which of the following is not a method of metal forming?

A) Extrusion B) Casting C) Forging D) Machining

14. Which of the following is a common technique for surface hardening of metals?

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

15. Which of the following is a common technique for removing rust from iron?

A) Annealing B) Electroplating C) Pickling D) Galvanizing

16. What is the process of separating metals from their ores called?

A) Refining B) Smelting C) Alloying D) Coating

17. Which of the following is a common technique for joining two pieces of metal together?

A) Soldering B) Annealing C) Forging D) Casting

18. Which of the following is a method for strengthening metal by compressing it between rollers?

A) Extrusion B) Drawing C) Rolling D) Forging

19. Which of the following metals is known for its ability to conduct electricity?

A) Gold B) Lead C) Zinc D) Titanium

20. What is the process of adding a thin layer of one metal onto another metal called?

A) Coating B) Forging C) Annealing D) Welding

21. Which of the following is not a ferrous metal?

a) Cast iron b) Stainless steel c) Copper d) Wrought iron

 22. Which of the following is an example of a non-ferrous metal?

a) Iron b) Steel c) Brass d) Cast iron

23. What is the process of removing impurities from iron called?

a) Smelting b) Refining c) Annealing d) Tempering

24. Which of the following metals is not a precious metal?

a) Gold b) Platinum c) Silver d) Copper

25. Which of the following is a method used to protect iron from rusting?

a) Galvanizing b) Annealing c) Tempering d) Forging

26. Which of the following is a process used to make steel stronger?

a) Tempering b) Annealing c) Galvanizing d) Smelting

27. Which of the following is a metal alloy?

a) Copper b) Gold c) Brass d) Silver

28. Which of the following is not a common method of metal joining?

a) Welding b) Soldering c) Bolting d) Forging

29. Which of the following metals is used to make coins?

a) Copper b) Nickel c) Aluminum d) All of the above

30. Which of the following metals is the most commonly used metal in construction?

a) Copper b) Aluminum c) Steel d) Gold

31. Which of the following is NOT a common method of extracting metals from ores?

a) Smelting b) Electroplating c) Leaching d) Reduction

32. What is the process of adding carbon to iron to make steel called?

a) Smelting b) Refining c) Alloying d) Carbonizing

33. Which of the following is a non-ferrous metal?

a) Iron b) Copper c) Nickel d) Steel

34. Which of the following is an example of a ferrous alloy?

a) Brass b) Bronze c) Steel d) Pewter

35. What is the process of heating a metal to a high temperature and then cooling it slowly called?

a) Annealing b) Quenching c) Tempering d) Case hardening

36. Which of the following is NOT a common method of surface treatment for metals?

a) Electroplating b) Galvanizing c) Powder coating d) Carburizing

37. Which of the following is a common method of non-destructive testing for metals?

a) X-ray diffraction b) Spectroscopy c) Tensile testing d) Hardness testing

38. What is the process of converting a metal into a powder called?

a) Atomization b) Sintering c) Quenching d) Forging

39. Which of the following is NOT a common method of casting metals?

a) Sand casting b) Investment casting c) Die casting d) Extrusion

40. Which of the following is a common method of welding metals?

a) Brazing b) Soldering c) Arc welding d) All of the above

41. Which of the following is not a common method for extracting metals from their ores?

a. Roasting b. Smelting c. Leaching d. Fermenting

42. Which of the following is a common reducing agent used in metallurgical processes?

a. Oxygen b. Hydrogen c. Carbon d. Nitrogen

43. Which of the following metals is not extracted by electrolysis?

a. Copper b. Aluminium c. Gold d. Iron

44. What is the purpose of adding flux during a metallurgical process?

a. To act as a reducing agent

b. To reduce the melting point of the ore

c. To increase the melting point of the ore

d. To increase the concentration of the metal in the ore

45. Which of the following is not a common method for refining metals?

a. Distillation b. Electrolysis c. Oxidation d. Vapour phase refining

46. What is metallurgy?

A. The study of metals and their properties

B. The study of how metals are formed in the earth

C. The study of how to use metals for construction

D. The study of how to refine metals from ore

47. Which of the following is not a common method of extracting metals from ore?

A. Smelting B. Electrolysis C. Magnetic separation D. Gravity separation

48. What is the process of smelting?

A. Heating ore in a furnace to extract the metal

B. Treating metal with heat to improve its properties

C. Cooling metal rapidly to make it harder

D. Adding carbon to iron to make steel

49. Which of the following is a non-ferrous metal?

A. Iron B. Copper C. Steel D. Aluminum

50. What is the process of annealing?

A. Cooling metal rapidly to make it harder

B. Heating metal and then quenching it in water

C. Treating metal with heat to improve its properties

D. Adding carbon to iron to make steel

ANSWERS:

1

2

3

4

5

6

7

8

9

10

C

C

A

A

B

A

D

A

B

B

11

12

13

14

15

16

17

18

19

20

B

B

D

B

C

B

A

C

A

A

21

22

23

24

25

26

27

28

29

30

C

C

B

D

A

A

C

D

D

C

31

32

33

34

35

36

37

38

39

40

B

D

B

C

A

D

A

A

D

D

41

42

43

44

45

46

47

48

49

50

D

C

D

B

C

D

C

A

D

C