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Theory of Machine

Theory of Machine
In a Hartnell governor, the compression of the spring is __________ the lift of the sleeve.

None of these
Equal to
Greater than
Less than

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Theory of Machine
The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line

At 45° to line as per (A)
Joining the corresponding points
Not possible to determine with these data
Perpendicular to line as per (A)

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Theory of Machine
Bifilar suspension method is used to find the

Periodic time of the body
Angular acceleration of the body
Frequency of vibration of the body
Moment of inertia of the body

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Theory of Machine
If ω/ωn is very high for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach

360°
180°
90°
0°

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Theory of Machine
A mass of 1 kg is attached to the end of a spring with a stiffness of 0.7 N/mm. The critical damping coefficient of this system is

52.92 N-s/m
529.2 N-s/m
1.4 N-s/m
18.52 N-s/m

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Theory of Machine
A typewriter mechanism has 7 numbers of binary joints, six links and none of higher pairs. The mechanism is

Soundness would depend upon which link is kept fixed
Kinematically sound
Not sound
Data is not sufficient to determine same

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