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Engineering Mechanics

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

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

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

πd3/32
πd3/16
πd4/32
πd4/64

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Engineering Mechanics
The velocity of a body on reaching the ground from a height h, is

2g.√h
√(gh)
2.√(gh)
√(2gh)

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Engineering Mechanics
Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its C.G. and parallel to the depth (d), is

bd³/36
db³/36
db³/12
bd³/12

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Engineering Mechanics
The force, by which the body is attracted, towards the center of the earth, is called

Momentum
Impulsive force
Mass
Weight

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Engineering Mechanics
Work done is said to be zero, when

Some force acts on a body, but displacement is zero
None of these
No force acts on a body but some displacement takes place
Either (A) or (B)

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