Machine Design MCQ Questions & Answers

61

The property of a bearing material which has the ability to accommodate shaft deflections and bearing inaccuracies by plastic deformation without excessive wear and heating, is known as

A) Bondability B) Embeddability C) Comformability D) Fatigue strength

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

62

Antifriction bearings are

A) Sleeve bearings B) Hydrodynamic bearings C) Thin lubricated bearings D) None of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

63

The notch sensitivity q is expressed in terms of fatigue stress concentration factor K_f and theoretical stress concentration factor K_t as

A) $$\frac{{{{\text{K}}_{\text{f}}} + 1}}{{{{\text{K}}_{\text{t}}} + 1}}$$ B) $$\frac{{{{\text{K}}_{\text{f}}} - 1}}{{{{\text{K}}_{\text{t}}} - 1}}$$ C) $$\frac{{{{\text{K}}_{\text{t}}} + 1}}{{{{\text{K}}_{\text{f}}} + 1}}$$ D) $$\frac{{{{\text{K}}_{\text{t}}} - 1}}{{{{\text{K}}_{\text{f}}} - 1}}$$

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

64

Which of the following key is preferred for the condition when a large amount of impact type torque is to be transmitted in both direction of rotation?

A) Woodruff key B) Feather key C) Gib-head key D) Tangent key

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

65

The cold working of metals is carried out __________ the recrystallization temperature.

A) Above B) Below C) At D) None of these

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

66

A key made from a cylindrical disc having segmental cross-section, is known as

A) Woodruff key B) Feather key C) Flat saddle key D) Gib head key

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

67

The included angle in unified of American National threads is

A) 60° B) 55° C) 47° D) 29°

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

68

The metal suitable for bearings subjected to heavy loads is

A) White metal B) Silicon bronze C) Monel metal D) Phosphor bronze

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

69

The metal suitable for bearings subjected to light loads is

A) Silicon bronze B) White metal C) Monel metal D) Phosphor bronze

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

70

The objective of caulking in a riveted joint is to make the joint

A) Free from corrosion B) Stronger in tension C) Free from stress D) Leak-proof

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Machine Design MCQ Questions & Answers | Mechanical Engineering