Machine Design MCQ Questions & Answers

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Each section contains 100 MCQs on Machine Design .

A spring is used to

A) Measure forces B) Apply forces C) Store energy D) All of these

Discuss

Answer & Solution

Answer: Option D

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

Which of the following property is essential for spring materials?

A) Stiffness B) Ductility C) Resilience D) Plasticity

Discuss

Answer & Solution

Answer: Option C

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

In case of thick cylinders, the tangential stress across the thickness of cylinder is

A) Maximum at the outer surface and minimum at the inner surface B) Maximum at the inner surface and minimum at the outer surface C) Maximum at the inner surface and zero at the outer surface D) Maximum at the outer surface and zero at the inner surface

Discuss

Answer & Solution

Answer: Option B

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

Screws used for power transmission should have

A) Very fine threads B) High efficiency C) Low efficiency D) Strong teeth

Discuss

Answer & Solution

Answer: Option B

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

Yield point in fatigue loading as compared to static loading is

A) Same B) Higher C) Lower D) Depends on other factors

Discuss

Answer & Solution

Answer: Option C

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

Which is correct statement?
Stress concentration in static loading is

A) Very serious in brittle materials and less serious in ductile materials B) Very serious in ductile materials and less serious in brittle materials C) Equally serious in both types of materials D) Seriousness would depend on other factors

Discuss

Answer & Solution

Answer: Option A

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

When two helical springs of equal lengths are arranged to form a cluster spring, then

A) Shear stress in each spring will be equal B) Load taken by each spring will be half the total load C) Only A is correct D) Both A and B is correct

Discuss

Answer & Solution

Answer: Option D

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

If two springs are in parallel then their overall stiffness will be

A) Half B) Same C) Double D) None of the above

Discuss

Answer & Solution

Answer: Option C

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

When two springs are in series (having stiffness K), the equivalent stiffness will be

A) K B) $$\frac{{\text{K}}}{2}$$ C) 2K D) $$\frac{{\text{K}}}{4}$$

Discuss

Answer & Solution

Answer: Option B

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

In order to remove internal stresses produced by hardening the steel, the process usually adopted is

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

Discuss

Answer & Solution

Answer: Option A

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

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Machine Design MCQ Questions & Answers | Mechanical Engineering