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Theory of Machine

Theory of Machine
If ω/ωn = 2, where co is the frequency of excitation and ωn is the natural frequency of vibrations, then the transmissibility of vibration will the

0.5
2
1
1.5

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Theory of Machine
The Scott-Russell mechanism consists of

Sliding pairs only
Turning and rotary pairs
Sliding and rotary pairs
Sliding and turning pairs

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Theory of Machine
Shaft revolving in a bearing is the following type of pair

Lower pair
Spherical pair
Higher pair
Cylindrical pair

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Theory of Machine
In vibration isolation system, the transmissibility will be equal to unity, for all values of damping factor, if ω/ωn is

Less than 2
Equal to 1
Greater than 2
Equal to 2

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Theory of Machine
When the two elements of a pair have __________ when in motion, it is said to a lower pair.

Surface contact
Body contact
None of these
Line or point contact

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Theory of Machine
The sensitiveness of the governor _____ as the speed range decreases.

Remains unaffected
Increases
Decreases
None of the listed here

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