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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
l - 1
l - 2

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Theory of Machine
Which of the following mechanism is obtained from lower pair?

Gyroscope
Pantograph
Valve and valve gears
All of these

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Theory of Machine
The Whitworth quick return motion mechanism is formed in a slider crank chain when the

Slider is a fixed link
Coupler link is fixed
Smallest link is a fixed link
Longest link is a fixed link

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Theory of Machine
Kinematic pairs are those which have two elements that

Have surface contact
Have line contact
Are held together
Permit relative motion

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Theory of Machine
The method of obtaining different mechanisms by fixing in turn different links in a kinematic chain, is known as

Inversion
Compound mechanism
Structure
Machine

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Theory of Machine
With usual notations for different parameters involved, the maximum fluctuations of energy for a flywheel is given by

2ECS²
2ECS
2E²CS
EC S/2

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