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Engineering Mechanics

Engineering Mechanics
The units of moment of inertia of mass are

m²/kg
kg/m²
kg-m²
kg/m

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Engineering Mechanics
The velocity ratio for the third system of pulleys is

n²
2n
2n - 1
n

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Engineering Mechanics
A ladder is resting on a rough ground and leaning against a smooth vertical wall. The force of friction will act

Perpendicular to the wall at its upper end
Downward at its upper end
Upward at its upper end
Zero at its upper end

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Engineering Mechanics
The rate of change of displacement of a body is called

Momentum
Velocity
None of these
Acceleration

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

Upwards at its upper end
Away from the wall at its upper end
Downwards at its upper end
Towards the wall at its upper end

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

Six times
Four times
Nine times
Two times

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MORE MCQ ON Engineering Mechanics

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