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Engineering Mechanics

Engineering Mechanics
The center of gravity of a quadrant of a circle lies along its central radius (r) at a distance of

0.7 r
0.5 r
0.8 r
0.6 r

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Engineering Mechanics
When two elastic bodies collide with each other,

The two bodies tend to compress and deform at the surface of contact
All of these
The two bodies will momentarily come to rest after collision
The two bodies begin to regain their original shape

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Engineering Mechanics
The velocity ratio in case of an inclined plane inclined at angle 'θ' to the horizontal and weight being pulled up the inclined plane by vertical effort is

sinθ
tanθ
cosecθ
cosθ

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Engineering Mechanics
The linear velocity of a body rotating at ω rad/s along a circular path of radius r is given by

ω²/r
ω.r
ω/r
ω².r

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Engineering Mechanics
A machine having an efficiency greater than 50%, is known as

Ideal machine
Non-reversible machine
Neither reversible nor non-reversible machine
Reversible machine

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Engineering Mechanics
A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span

3.0 cm
5.0 cm
2.5 cm
4.0 cm

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MORE MCQ ON Engineering Mechanics

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