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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 3
26.
Most of the engines, generally, do not require balancing of secondary forces and couples.
Right
Wrong
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
The secondary unbalanced force is maximum __________ in one revolution of the crank.
two times
four times
eight times
sixteen times
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
A spring controlled governor is found unstable. It can be made stable by
increasing the spring stiffness
decreasing the spring stiffness
increasing the ball mass
decreasing the ball mass
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
In order to have a good grip on the pulley, the V-belt should touch the bottom of the groove in the pulley.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
In order to double the period of a simple pendulum, the length of the string should be
halved
doubled
quadrupled
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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