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Theory of Machine

Theory of Machine
The tendency of a body to resist change from rest or motion is known as

Inertia
Resisting force
Mass
Friction

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Theory of Machine
In a radial cam, the follower moves

In a direction parallel to the cam axis
In a direction perpendicular to the cam axis
In any direction irrespective of the cam axis
Along the cam axis

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Theory of Machine
A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of

2.50 mm
2.22 mm
3.0 mm
2 mm

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Theory of Machine
The ratio of the driving tensions for V-belts is __________ times that of flat belts.(Where β = Semi-angle of the groove)

secβ
cosecβ
cosβ
sinβ

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Theory of Machine
When the body is suspended at the point of suspension, its periodic time and frequency will be ________ as compared to the body suspended at the point of percussion.

Two times
Four times
Same
None of these

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Theory of Machine
Ackermann steering gear consists of

Turning pairs
Rolling pairs
Sliding pairs
Higher pairs

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