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Engineering Mechanics

Engineering Mechanics
Moment of inertia of a triangular section of base (b) and height (h) about an axis through its base, is

bh3/4
bh3/12
bh3/36
bh3/8

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Engineering Mechanics
A couple produces

Rotational motion
None of these
Combined translatory and rotational motion
Translatory motion

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Engineering Mechanics
The total motion possessed by a body, is called

Impulsive force
Momentum
Weight
Mass

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Engineering Mechanics
If a number of forces are acting at a point, their resultant is given by

√[(∑V)2 + (∑H)2]
(∑V)2 + (∑H)2
(∑V)2 +(∑H)2 +2(∑V)(∑H)
√[(∑V)2 +(∑H)2 +2(∑V)(∑H)]

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

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Engineering Mechanics
When a person, on a bicycle, drives round a curve, he has to lean __________ to maintain equilibrium.

Towards front
Outward
Inward
Towards back

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