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Theory of Machine

Theory of Machine
The velocity of the rubbing surface __________ with the distance from the axis of the bearing.

None of these
Decreases
Increases
Remain same

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Theory of Machine
In higher pair, the relative motion is

Purely rotary
Purely sliding
Purely turning
Combination of sliding and turning

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Theory of Machine
The Klein's diagram is used when

Crank has nonuniform angular acceleration
Crank has uniform angular acceleration
Crank has uniform angular velocity
Crank has nonuniform angular velocity

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Theory of Machine
Which one of the following can completely balance several masses revolving in different planes on a shaft?

Two equal masses in any two planes
A single mass in one of the planes of the revolving masses
Two masses in any two planes
A single mass in different planes

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Theory of Machine
Which of the following is an inversion of Single slider crank chain?

Oldham’s coupling
Rotary engine
Elliptical trammel
Beam engine

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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

2.22 mm
3.0 mm
2 mm
2.50 mm

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