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Engineering Mechanics

Engineering Mechanics
The moment of inertia of a thin spherical shell of mass m and radius r, about its diameter is

mr²/3
2mr²/3
2mr²/5
3mr²/5

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Engineering Mechanics
If a number of coplanar forces acting at a point be in equilibrium, the sum of clockwise moments must be __________ the sum of anticlockwise moments, about any point.

None of these
Greater than
Less than
Equal to

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Engineering Mechanics
The acceleration of a particle moving with simple harmonic motion is __________ at the mean position.

Minimum
None of these
Maximum
Zero

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Engineering Mechanics
The moment of inertia of a solid cone of mass ‘m’ and base radius ‘r’ about its vertical axis is

3mr²/5
4mr²/5
3mr²/10
2mr²/5

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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
The ideal angle of banking provided on the curves on roads depends upon

(Velocity)2 of the vehicle
Nature of the road surface
Coefficient of friction between the road and vehicle contact point
Weight of the vehicle

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