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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 9
6.
Which of the following governor is used to drive a gramophone?
Watt governor
Porter governor
Pickering governor
Hartnell governor
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
In locomotives, the ratio of the connecting rod length to me crank radius is kept very large in order to
minimise the effect of primary forces
minimise the effect of secondary forces
have perfect balancing
to start the locomotive quickly
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
The ball and socket joint is an example of screw pair.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
A friction circle is a circle drawn when a journal rotates in a bearing. Its radius depends upon the coefficient of friction and the
magnitude of the forces on journal
angular velocity of journal
clearance between journal and bearing
radius of journal
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
Which of the following statement is wrong?
The difference between the maximum and minimum energies is called maximum fluctuation of energy
The coefficient of fluctuation of speed is the ratio of maximum fluctuation of speed to the mean speed
The variations of energy above and below the mean resisting torque line is known as fluctuation of energy
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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