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Engineering Mechanics

Engineering Mechanics
Moment of inertia of a circular section about its diameter (d) is

πd4/32
πd4/64
πd3/32
πd3/16

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Engineering Mechanics
The moment of inertia of a thin disc of mass ‘m’ and radius ‘r’, about an axis through its center of gravity and perpendicular to the plane of the disc is

mr²/8
mr²/6
mr²/2
mr²/4

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Engineering Mechanics
The impact between two lead spheres is approximately equal to an __________ impact.

Inelastic
None of these
Solid
Elastic

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Engineering Mechanics
Static friction is always __________ dynamic friction.

Less than
Greater than
None of these
Equal to

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Engineering Mechanics
If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys.

None of these
Third
Second
First

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Engineering Mechanics
If rain is falling in the opposite direction of the movement of a pedestrian, he has to hold his umbrella

Less inclined when standing
More inclined when standing
More inclined when moving
Less inclined when moving

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