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Theory of Machine

Theory of Machine
Carnot cycle is

a quasi static cycle
a semi-reversible cycle
an irreversible cycle
a reversible cycle

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Theory of Machine
Which of the following is a higher pair?

Screw pair
Sliding pair
Belt and pulley
Turning pair

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Theory of Machine
When the two elements of a pair have a surface contact when relative motion takes place and the surface of one element slides over the surface of the other, the pair formed is known as a

Lower pair
Self-closed pair
Higher pair
Force-closed pair

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Theory of Machine
The acceleration of a particle at any instant has two components i.e. radial component and tangential component. These two components will be

Opposite to each other
Parallel to each other
Perpendicular to each other
Inclined at 45°

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Theory of Machine
In a reciprocating engine, usually __________ of the reciprocating masses are balanced.

Three-fourth
One-half
Two-third
Whole

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Theory of Machine
The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line

Joining the corresponding points
Perpendicular to line as per (A)
At 45° to line as per (A)
Not possible to determine with these data

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