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Engineering Mechanics

Engineering Mechanics
If the gravitational acceleration at any place is doubled, then the weight of a body will be

2g
√2.g
g
g/2

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Engineering Mechanics
The units of moment of inertia of mass are

kg/m²
kg-m²
kg/m
m²/kg

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Engineering Mechanics
The time of flight (t) of a projectile on a horizontal plane is given by

t = 2u/g.sinα
t = 2u. cosα/g
t = 2u. sinα/g
t = 2u. tanα/g

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Engineering Mechanics
A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span

2.5 cm
3.0 cm
4.0 cm
5.0 cm

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Engineering Mechanics
The coefficient of friction depends upon

All of these
Area of contact
Shape of the surfaces
Nature of surfaces

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Engineering Mechanics
On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be

Perpendicular to the wall at its upper end
Upwards at its upper end
Zero at its upper end
Downwards at its upper end

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MORE MCQ ON Engineering Mechanics

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