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Theory of Machine

Theory of Machine
If the number of links in a mechanism is equal to l, then the numbers of possible inversions are equal to

l + 1
l - 1
l - 2
l

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Theory of Machine
Bifilar suspension method is used to find the

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

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Theory of Machine
When two pulleys of different diameters are connected by means of an open belt, the angle of contact at the ________ pulley must be taken into consideration.

Smaller
Larger
Smaller OR Larger
None of the listed here

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Theory of Machine
A kinematic chain requires at least

2 links and 3 turning pairs
3 links and 4 turning pairs
5 links and 4 turning pairs
4 links and 4 turning pairs

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Theory of Machine
The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is

6 Hz
3π Hz
6π Hz
3 Hz

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Theory of Machine
Which of the following governor is used to drive a gramophone?

Watt governor
Pickering governor
Porter governor
Hartnell governor

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