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Engineering Mechanics

Engineering Mechanics
A screw jack used for lifting the loads is

An ideal machine
A reversible machine
A non-reversible machine
None of these

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Engineering Mechanics
When the lift is moving upwards with some acceleration, the pressure exerted by a man is __________ to its acceleration.

Inversely proportional
None of these
Cube root
Directly proportional

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Engineering Mechanics
Three forces acting on a rigid body are represented in magnitude, direction and line of action by the three sides of a triangle taken in order. The forces are equivalent to a couple whose moment is equal to

Twice the area of the triangle
None of these
Area of the triangle
Half the area of the triangle

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Engineering Mechanics
When the spring of a watch is wound, it will possess

Kinetic energy
Strain energy
Heat energy
Electrical energy

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Engineering Mechanics
Moment of inertia is the

Second moment of mass
Second moment of force
Second moment of area
All of these

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Engineering Mechanics
A pendulum which executes one beat per second is known as

Torsional pendulum
Simple pendulum
Second's pendulum
Compound pendulum

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