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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
mr²
2mr²/5
mr²/2

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Engineering Mechanics
Mass moment of inertia of a uniform thin rod of mass M and length (l) about its mid-point and perpendicular to its length is

(1/12) Ml²
(3/4) Ml²
(2/3) Ml²
(1/3) Ml²

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Engineering Mechanics
If a suspended body is struck at the center of percussion, then the pressure on die axis passing through the point of suspension will be

Infinity
Zero
Maximum
Minimum

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Engineering Mechanics
The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, α = Angle of projection, and β = Inclination of the plane with the horizontal.)

t = g cos β/2u sin (α + β)
t = 2u sin (α - β)/g cos β
t = g cos β/2u sin (α - β)
t = 2u sin (α + β)/g cos β

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Engineering Mechanics
One joule is equal to

100 N-m
1 N-m
0.1 N-m
10 N-m

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Engineering Mechanics
In order to double the period of simple pendulum, the length of the string should be

None of these
Quadrupled
Doubled
Halved

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MORE MCQ ON Engineering Mechanics

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