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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 6
31.
Whitworth quick return motion mechanism is an inversion of a double slider crank chain.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
The maximum gyroscopic couple acting on the ship tends to shear the holding down bolts.
Correct
Incorrect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set to
reduce vibration
reduce slip
ensure uniform loading
ensure proper alignment
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
A force acting in the opposite direction to the motion of the body is called force of friction.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of the rotor separately, are 100 Hz and 200 Hz respectively. The lowest critical speed is
5367 r.p.m.
6000 r.p.m.
9360 r.p.m.
12000 r.p.m.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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