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Theory of Machine

Theory of Machine
Which of the following is an open pair?

Lead screw and nut
Ball and socket joint
Journal bearing
Cam and follower

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Theory of Machine
The height of a Watt's governor (in meters) is equal to (where N = Speed of the arm and ball about the spindle axis)

8.95/N²
8950/N²
895/N²
89.5/N²

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Theory of Machine
The critical speed of a shaft with a disc supported in between is equal to the natural frequency of the system in

Transverse vibrations
Longitudinal vibrations
Torsional vibrations
All of these

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Theory of Machine
A shaft carrying three rotors will have

Two nodes
Three nodes
No node
One node

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Theory of Machine
The Bifilar suspension method is used to determine

Moment of inertia
Natural frequency of vibration
Centripetal acceleration
Position of balancing weights

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Theory of Machine
Rectilinear motion of piston is converted into rotary by

Gudgeon pin
Slider crank
Connecting rod
Cross head

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