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Engineering Mechanics

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

Mass
Impulsive force
Momentum
Weight

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Engineering Mechanics
The moment of inertia of a thin rod of mass 'm' and length 'l', about an axis through its centre of gravity and perpendicular to its length is

ml2/ 6
ml2/12
ml2/8
ml2/4

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Engineering Mechanics
If n = number of members and y = number of joints, then for a perfect frame, n = ?

43832
43892
43864
43865

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Engineering Mechanics
The velocity ratio for the first system of pulleys is (where n is the number of pulleys.)

n
n²
2n
2n - 1

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Engineering Mechanics
The slope on the road surface generally provided on the curves is known as

None of these
Angle of banking
Angle of repose
Angle of friction

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Engineering Mechanics
According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through center of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.)

IP = IG / Ah2
IP = IG - Ah2
IP = IG + Ah2
IP = Ah2 / IG

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