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Engineering Mechanics

Engineering Mechanics
Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G. and parallel to the base, is

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

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Engineering Mechanics
The centre of gravity of an isosceles triangle with base (p) and sides (q) from its base is

(4p² - q²)/6
(p² + q²)/4
(p² - q²)/4
[√(4p² - q²)]/6

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Engineering Mechanics
The coefficient of restitution for inelastic bodies is

More than one
Between zero and one
One
Zero

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Engineering Mechanics
The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force.

Less than
Equal to
Greater than
None of these

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Engineering Mechanics
The periodic time of one oscillation for a simple pendulum is (where l = Length of the pendulum.)

2π. √(l/g)
None of these
(1/2π). √(g/l)
(1/2π). √(l/g)

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Engineering Mechanics
The horizontal range of a projectile (R) is given by

R = u² sinα/g
R = u² cosα/g
R = u² sin2α/g
R = u² cos2α/g

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