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Theory of Machine

Theory of Machine
The coefficient of fluctuation of speed is __________ of maximum fluctuation of speed and the mean speed.

Product
Difference
Sum
Ratio

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Theory of Machine
When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as

Compound pendulum
Second's pendulum
Simple pendulum
Torsional pendulum

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Theory of Machine
In a reciprocating steam engine, which of the following forms a kinematic link?

Cylinder and piston
Flywheel and engine frame
Piston rod and connecting rod
Crankshaft and flywheel

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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
2.50 mm
2 mm
3.0 mm

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Theory of Machine
The mechanism in which two are turning pairs and two are sliding pairs, is called a

All of these
Scotch yoke mechanism
Elliptical trammel
Double slider crank chain

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Theory of Machine
Coriolis component acts

Along sliding surfaces
None of these
Perpendicular to sliding surfaces
Somewhere in between above two

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