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Theory of Machine

Theory of Machine
When a shaking force is transmitted through the springs, damping becomes detrimental when the ratio of its frequency to the natural frequency is greater than

0.25
1
0.5
2

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Theory of Machine
The component of the acceleration, perpendicular to the velocity of the particle, at the given instant is called

Coriolis component
None of these
Tangential component
Radial component

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Theory of Machine
The unbalanced force due to reciprocating masses

Constant in magnitude and direction both
Varies in magnitude and direction both
Varies in magnitude but constant in direction
Varies in direction but constant in magnitude

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Theory of Machine
In a drag link quick return mechanism, the shortest link is always fixed. The sum of the shortest and longest link is

Greater than sum of other two
There is no such relationship
Equal to sum of other two
Less than sum of other two

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Theory of Machine
A kinematic chain is known as a mechanism when

None of these
Two of the links are fixed
One of the links is fixed
None of the links is fixed

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Theory of Machine
In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set to

Ensure uniform loading
Reduce slip
Ensure proper alignment
Reduce vibration

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