Mechanical Engineering - Theory of machines

1. 

The working depth of a gear is the radial distance from the

A. pitch circle to the bottom of a tooth
B. pitch circle to the top of a tooth
C. top of a tooth to the bottom of a tooth
D. addendum circle to the clearance circle

Answer: Option D

Explanation:

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2. 

The acceleration of a particle at any instant has two components i.e. radial component and tangential component. These two components will be

A. parallel to each other
B. perpendicular to each other
C. inclined at 45°
D. opposite to each other

Answer: Option B

Explanation:

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3. 

When the axes of the first and last wheels are co-axial, then the train is known as

A. simple train of wheels
B. compound train of wheels
C. reverted gear train
D. epicyclic gear train

Answer: Option C

Explanation:

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4. 

The primary unbalanced force is more than the secondary unbalanced force.

A. True
B. False

Answer: Option A

Explanation:

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5. 

The cam and follower is an example of

A. sliding pair
B. rolling pair
C. lower pair
D. higher pair

Answer: Option D

Explanation:

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