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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

0.6 r
0.8 r
0.7 r
0.5 r

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Engineering Mechanics
The time of flight of a projectile on downward inclined plane depends upon

Both (A) and (B)
Angle of projection
None of these
Angle of inclination of the plane

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

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

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Engineering Mechanics
The range of projectile on a downward inclined plane is ________ the range on upward inclined plane for the same velocity of projection and angle of projection.

None of These
More than
Less than
Equal to

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Engineering Mechanics
The friction experienced by a body, when in motion, is known as

Rolling friction
Limiting friction
Static friction
Dynamic friction

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Engineering Mechanics
The centre of percussion is below the centre of gravity of the body and is at a distance equal to

h/kG
h × kG
kG2/h
h2/kG

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