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Theory of Machine

Theory of Machine
Ackermann steering gear consists of

Sliding pairs
Rolling pairs
Turning pairs
Higher pairs

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Theory of Machine
In steady state forced vibrations, the amplitude of vibrations at resonance is __________ damping coefficient.

Inversely proportional to
Directly proportional to
Independent of
Equal to

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Theory of Machine
When a ship travels in a sea, which of the effect is more dangerous

Rolling
Pitching
All of these
Steering

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Theory of Machine
The sense of Coriolis component is such that it

Leads the sliding velocity vector by 90°
Is along the sliding velocity vector
Lags the sliding velocity vector by 90°
Leads the sliding velocity vector by 180°

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Theory of Machine
Length of arc of contact is given by

Arc of approach + Arc of recess
Arc of approach - Arc of recess
Arc of approach × Arc of recess
Arc of approach / Arc of recess

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Theory of Machine
A spring controlled governor is said to be isochronous when the controlling force

Remain constant for all radii of rotation
Increases as the radius of rotation decreases
Increases as the radius of rotation increases
Decreases as the radius of rotation increases

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