Mechanical Engineering - Theory of machines

11. 

The pair is known as a higher pair, when the relative motion between the elements of a pair is

A. turning only
B. sliding only
C. rolling only
D. partly turning and partly sliding

Answer: Option D

Explanation:

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12. 

When the connection between the two elements is such that only required kind of relative motion occurs, it is known as self-closed pair.

A. Right
B. Wrong

Answer: Option A

Explanation:

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13. 

The Whitworth quick return motion mechanism is formed in a slider crank chain when the

A. coupler link is fixed
B. longest link is a fixed link
C. slider is a fixed link
D. smallest link is a fixed link

Answer: Option A

Explanation:

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14. 

The primary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is

A. 0° and 90°
B. 0° and 180°
C. 90° and 180°
D. 180° and 360°

Answer: Option B

Explanation:

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15. 

The acceleration of the particle moving with simple harmonic motion is inversely proportional to the displacement of the particle from the mean position.

A. Yes
B. No

Answer: Option B

Explanation:

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