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Engineering Mechanics

Engineering Mechanics
The rate of doing work is known as

Power
Potential energy
None of these
Kinetic energy

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

Heat energy
Kinetic energy
Strain energy
Electrical energy

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Engineering Mechanics
The periodic time (T) is given by (where, ω = Angular velocity of particle in rad/s.)

2π/ω
π/ω
2π × ω
ω/2π

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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
The unit of work in S.I. units is

erg
joule
kg-m
Newton

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Engineering Mechanics
The ideal angle of banking provided on the curves on roads depends upon

Nature of the road surface
Weight of the vehicle
(Velocity)2 of the vehicle
Coefficient of friction between the road and vehicle contact point

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