A machine which is not capable of doing any work in the reversed direction, afte

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Question
A machine which is not capable of doing any work in the reversed direction, after the effort is removed, is called a reversible machine.
Options
A. True
B. False

Correct Answer

False

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3. When two elastic bodies collide with each other,
Options
A. the two bodies will momentarily come to rest after collision
B. the two bodies tend to compress and deform at the surface of contact
C. the two bodies begin to regain their original shape
D. all of the above

6. The forces which do not meet at one point and their lines of action do not lie on the same plane are known as
Options
A. coplaner concurrent forces
B. coplaner non-concurrent forces
C. non-coplaner concurrent forces
D. none of these

10. Which of the following statement is correct?
Options
A. The periodic time of a particle moving with simple harmonic motion is the time taken by a particle for one complete oscillation,
B. The periodic time of a particle moving with simple harmonic motion is directly proportional to its angular velocity.
C. The velocity of the particle moving with simple harmonic motion is zero at the mean position.
D. The acceleration of the particle moving with simple harmonic motion is maximum at the mean position.

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