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Engineering Mechanics

Engineering Mechanics
The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by

Q / P
P - Q
P + Q
P / Q

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Engineering Mechanics
A couple produces

Combined translatory and rotational motion
Rotational motion
Translatory motion
None of these

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Engineering Mechanics
The motion of a particle round a fixed axis is

Rotary
Circular
Translatory as well as rotary
Translatory

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Engineering Mechanics
The unit of angular velocity is

m/min
Both (B) and (C)
Revolutions/min
rad/s

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Engineering Mechanics
A machine having an efficiency greater than 50%, is known as

Reversible machine
Ideal machine
Non-reversible machine
Neither reversible nor non-reversible machine

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Engineering Mechanics
The frequency of oscillation of a compound pendulum is (where kG = Radius of gyration about the centroidal axis, and h = Distance between the point of suspension and C.G. of the body.)

1/2π. √(kG² + h²/gh)
1/2π. √(gh/kG² + h²)
2π. √(gh/kG² + h²)
2π. √(kG² + h²/gh)

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