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Engineering Mechanics

Engineering Mechanics
The acceleration of a body sliding down an inclined surface is

g sinθ
g tanθ
None of these
g cosθ

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

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

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Engineering Mechanics
If tension in the cable supporting a lift moving downwards is half the tension when it is moving upwards, the acceleration of the lift is

g/3
None of these
g/2
g/4

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Engineering Mechanics
In actual machines, mechanical advantage is _________ velocity ratio.

Less than
None of these
Greater than
Equal to

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Engineering Mechanics
The center of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius.

4r/ 3π
3r/ 8
3r/4π
8r/3

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Engineering Mechanics
The unit of force in S.I. system of units is

Dyne
Kilogram
Newton
Watt

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MORE MCQ ON Engineering Mechanics

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