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Engineering Mechanics

Engineering Mechanics
A weight of 1000 N can be lifted by an effort of 80 N. If the velocity ratio is 20, the machine is

Ideal
None of these
Reversible
Non-reversible

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Engineering Mechanics
The equivalent length of a simple pendulum which gives the same frequency as compound pendulum is

h/(kG² + h²)
h²/(kG² + h²)
(kG² + h²)/h
(kG² + h²)/h²

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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
Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its C.G. and parallel to the width (b), is

db³/36
db³/12
bd³/36
bd³/12

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Engineering Mechanics
The impact between two lead spheres is approximately equal to an __________ impact.

Solid
Inelastic
None of these
Elastic

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Engineering Mechanics
The force applied on a body of mass 100 kg to produce an acceleration of 5 m/s2, is

100 N
500 N
20 N
None of these

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