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Engineering Mechanics

Engineering Mechanics
The rate of doing work is known as

None of these
Potential energy
Kinetic energy
Power

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Engineering Mechanics
Which of the following is an equation of linear motion?(where, u and v = Initial and final velocity of the body, a = Acceleration of the body, and s = Displacement of the body in time t seconds.)

v = u + a.t
All of these
s = u.t + ½ a.t2
v2 = u2 + 2a.s

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Engineering Mechanics
The process of finding out the resultant force is called __________ of forces.

Resolution
None of these
Decomposition
Composition

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Engineering Mechanics
In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load.

Less than
Equal to
None of these
More than

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Engineering Mechanics
The three forces of 100 N, 200 N and 300 N have their lines of action parallel to each other but act in the opposite directions. These forces are known as

Unlike parallel forces
Coplanar concurrent forces
Like parallel forces
Coplanar non-concurrent forces

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Engineering Mechanics
In ideal machines, mechanical advantage is __________ velocity ratio.

None of these
Greater than
Equal to
Less than

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