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Engineering Mechanics

Engineering Mechanics
Mass moment of inertia of a thin rod about its one end is ___________ the mass moment of inertia of the same rod about its mid-point

Four times
Twice
Thrice
Same as

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Engineering Mechanics
The velocity ratio for the third system of pulleys is

n
2n
n²
2n - 1

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Engineering Mechanics
When a person, on a bicycle, drives round a curve, he has to lean __________ to maintain equilibrium.

Towards back
Towards front
Inward
Outward

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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 = Ah2 / IG
IP = IG + Ah2

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Engineering Mechanics
If a body is acted upon by a number of coplanar non-concurrent forces, it may

Rotate about itself without moving
Be completely at rest
Move in any one direction rotating about itself
All of these

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Engineering Mechanics
The angular velocity (in rad/s) of a body rotating at N revolutions per minute is

πN/60
πN/180
2πN/180
2πN/60

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