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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
3mr²/5
2mr²/3
2mr²/5

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Engineering Mechanics
The power developed by a body acted upon by a torque 'T' Newton meter (N - m) and revolving at ω radian/s is given by

T.ω (in watts)
T.ω/4500 (in kilowatts)
T.ω/75 (in kilowatts)
T.ω/60 (in watts)

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Engineering Mechanics
The angle between two forces when the resultant is maximum and minimum respectively are

90° and 0°
0° and 180°
90° and 180°
180° and 0°

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Engineering Mechanics
When the spring of a watch is wound, it will possess

Strain energy
Kinetic energy
Electrical energy
Heat energy

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Engineering Mechanics
Coefficient of friction depends upon

None of these
Both (A) and (B)
Area of contact only
Nature of surface only

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Engineering Mechanics
Concurrent forces are those forces whose lines of action

Meet on the same plane
Lie on the same line
None of these
Meet at one point

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