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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 4
46.
A single degree of freedom system is given by , with usual notations. It represents
free vibration with damping
free vibration without damping
forced vibration with damping
forced vibration without damping
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
In a Hartnell governor, the lift of the sleeve is given by (where r1 and r2 = Max. and min. radii of rotation, x = Length of ball arm of the lever, and y = Length of sleeve arm of the lever)
(r1 + r2)
(r1 + r2)
(r1 - r2)
(r1 - r2)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
The maximum efficiency of a screw jack is
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
When a mechanism is required to transmit power or to do some particular type of work, then it becomes a machine.
Agree
Disagree
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
The transmissibility, for all values of damping factor, will be less than unity, if ω/ωn is
equal to 1
less than 2
equal to 2
greater than 2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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