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Engineering Mechanics

Engineering Mechanics
The moment of inertia of a solid sphere of mass ‘m’ and radius ‘r’ is

2mr²/3
2mr²/5
mr²
mr²/2

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Engineering Mechanics
The rate of doing work is known as

Kinetic energy
None of these
Power
Potential energy

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Engineering Mechanics
The C.G. of a solid hemisphere lies on the central radius 3r

At distance — from the plane base 3r
At distance — from the plane base
At distance — from the plane base 3r
At distance — from the plane base 3r

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Engineering Mechanics
The unit of angular velocity is

Both (B) and (C)
m/min
rad/s
Revolutions/min

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Engineering Mechanics
If the body falls freely under gravity, then the gravitational acceleration is taken as

-9.8 m/s2
+9.8 m/s2
+8.9 m/s2
-8.9 m/s2

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Engineering Mechanics
A smooth cylinder lying on its convex surface remains in __________ equilibrium.

None of these
Unstable
Neutral
Stable

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MORE MCQ ON Engineering Mechanics

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