Material Science in Metallurgy MCQ Questions and Answers | Metallurgical Engineering Page-5 section-1

41.
Which of the following materials is not suitable as a die material for wire drawing?

A. Diamond

B. Tungsten carbide

C. Tool steel

D. Bronze

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42.
Match the following

P. Nickel-silvers 1. Alloys of tin, antimony and copper used as a bearing material

Q. Nitralloys 2. Steel used for nitriding containing aluminium, chromium and molybed num

R. Babbits 3. Soft magnetic material used as electromagnet

S. Permalloy 4. Ternery alloys of copper, nickel and zinc with good cold formability

A. P-4, Q-2, R-3, S-1

B. P-4, Q-2, R-1, S-3

C. P-4, Q-3, R-2, S-1

D. P-1, Q-2, R-4, S-3

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43.
When boron (trivalent) is doped to silicon, the resulting material is

A. a p-type semiconductor

B. an n-type semiconductor

C. a superconductor

D. an insulator

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44.
The single most important requirement for a turbine blade material is

A. damping

B. resilience

C. creep resistance

D. DBTT

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45.
The engineering stress-strain curve for a ceramic material is

A. parabolic

B. exponential

C. logarithmic

D. linear

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46.
As mercury is cooled from room temperature to 3 K, its electrical behaviour changes from that of

A. conductor to insulator

B. semiconductor to insulator

C. conductor to superconductor

D. semiconductor to superconductor

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47.
The material in which there is conduction primarily by holes is

A. conductor

B. insulator

C. p-type semi-conductor

D. n-type semi-conductor

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48.
Match each application in Group 1 with a material in Group 2.

Group 1 Group 2

P. Cores for electric motor 1. Y-Fe₂O₃ particles

Q. stripe on credit cards 2. Barium titanate

R. Permanent magnets 3. COsSm intermetallic compound

S. Multilayer capacitors 4. Grain oriented silicon steel

A. P-3, Q-1, R-2, S-4

B. P-4, Q-1, R-3, S-2

C. P-4, Q-1, R-2, S-3

D. P-2, Q-1, R-3, S-4

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49.
Which one of the following alloy systems exhibits complete solid solubility?

A. Cu-Ni

B. Fe-Cu

C. Pb-Sn

D. Cu-Zn

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50.
Match the properties in Group 1 with the metals in Group 2.

Group 1 Group 2

P. Ferromagnetism 1. Nb

Q. Superconductivity 2. Fe

R. Diamagnetism 3. Cu

S. Antiferromagnetism 4. Cr

A. P-2, Q-4, R-3, S-1

B. P-2, Q-1, R-3, S·4

C. P-3, Q-4, R-1, S-2

D. P-1, Q-2, R-3, S-4

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P. Nickel-silvers	1. Alloys of tin, antimony and copper used as a bearing material
Q. Nitralloys	2. Steel used for nitriding containing aluminium, chromium and molybed num
R. Babbits	3. Soft magnetic material used as electromagnet
S. Permalloy	4. Ternery alloys of copper, nickel and zinc with good cold formability

Group 1	Group 2
P. Cores for electric motor	1. Y-Fe₂O₃ particles
Q. stripe on credit cards	2. Barium titanate
R. Permanent magnets	3. COsSm intermetallic compound
S. Multilayer capacitors	4. Grain oriented silicon steel

Group 1	Group 2
P. Ferromagnetism	1. Nb
Q. Superconductivity	2. Fe
R. Diamagnetism	3. Cu
S. Antiferromagnetism	4. Cr

Material Science in Metallurgy MCQ Questions and Answers | Metallurgical Engineering

41. Which of the following materials is not suitable as a die material for wire drawing?

Answer & Solution

Answer & Solution

43. When boron (trivalent) is doped to silicon, the resulting material is

Answer & Solution

44. The single most important requirement for a turbine blade material is

Answer & Solution

45. The engineering stress-strain curve for a ceramic material is

Answer & Solution

46. As mercury is cooled from room temperature to 3 K, its electrical behaviour changes from that of

Answer & Solution

47. The material in which there is conduction primarily by holes is

Answer & Solution

48. Match each application in Group 1 with a material in Group 2. Group 1 Group 2 P. Cores for electric motor 1. Y-Fe2O3 particles Q. stripe on credit cards 2. Barium titanate R. Permanent magnets 3. COsSm intermetallic compound S. Multilayer capacitors 4. Grain oriented silicon steel

Answer & Solution

49. Which one of the following alloy systems exhibits complete solid solubility?

Answer & Solution

50. Match the properties in Group 1 with the metals in Group 2. Group 1 Group 2 P. Ferromagnetism 1. Nb Q. Superconductivity 2. Fe R. Diamagnetism 3. Cu S. Antiferromagnetism 4. Cr

Answer & Solution

41.
Which of the following materials is not suitable as a die material for wire drawing?

43.
When boron (trivalent) is doped to silicon, the resulting material is

44.
The single most important requirement for a turbine blade material is

45.
The engineering stress-strain curve for a ceramic material is

46.
As mercury is cooled from room temperature to 3 K, its electrical behaviour changes from that of

47.
The material in which there is conduction primarily by holes is

48.
Match each application in Group 1 with a material in Group 2.

Group 1 Group 2

P. Cores for electric motor 1. Y-Fe₂O₃ particles

Q. stripe on credit cards 2. Barium titanate

R. Permanent magnets 3. COsSm intermetallic compound

S. Multilayer capacitors 4. Grain oriented silicon steel

49.
Which one of the following alloy systems exhibits complete solid solubility?

50.
Match the properties in Group 1 with the metals in Group 2.

Group 1 Group 2

P. Ferromagnetism 1. Nb

Q. Superconductivity 2. Fe

R. Diamagnetism 3. Cu

S. Antiferromagnetism 4. Cr