# Mechanical Engineering - Theory of machines

### Exercise :: Theory of machines - Section 2

1.

The maximum or minimum value of the swaying couple is

 A. ± c.m.ω2.r B. ± a(1 - c)m.ω2.r C. ± (1 - c)m.ω2.r D. ± 2a(1 - c)m.ω2.r

Explanation:

No answer description available for this question. Let us discuss.

2.

For an involute gear, the ratio of base circle radius and pitch circle radius is equal to

 A. sin φ B. cos φ C. sec φ D. cosec φ

Explanation:

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3.

A chain consisting of four links and four joints is called a kinematic chain.

 A. Yes B. No

Explanation:

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4.

Which of the following is an open pair?

 A. Ball and socket joint B. Journal bearing C. Lead screw and nut D. Cam and follower

Explanation:

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5.

The frictional torque transmitted in a flat pivot bearing with assumption of uniform pressure is __________ as compared to uniform wear.

 A. less B. more C. same