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Engineering Mechanics

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
ω²/r
ω/r
ω.r

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Engineering Mechanics
The frequency of oscillation of a compound pendulum is (where kG = Radius of gyration about the centroidal axis, and h = Distance between the point of suspension and C.G. of the body.)

1/2π. √(gh/kG² + h²)
2π. √(gh/kG² + h²)
2π. √(kG² + h²/gh)
1/2π. √(kG² + h²/gh)

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Engineering Mechanics
The unit of angular acceleration is

m/s2
N-m
m/s
rad/s2

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Engineering Mechanics
Three forces acting on a rigid body are represented in magnitude, direction and line of action by the three sides of a triangle taken in order. The forces are equivalent to a couple whose moment is equal to

Twice the area of the triangle
None of these
Area of the triangle
Half the area of the triangle

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Engineering Mechanics
A smooth cylinder lying on a __________ is in neutral equilibrium.

Convex surface
Horizontal surface
None of these
Curved surface

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Engineering Mechanics
The moment of inertia of a square of side a about its diagonal is

a⁴/16
a³/12
a²/8
a⁴/12

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MORE MCQ ON Engineering Mechanics

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