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Engineering Mechanics

Engineering Mechanics
The periodic time of a particle with simple harmonic motion is _________ proportional to the angular velocity.

Inversely
None of these
Square root
Directly

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

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

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

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

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Engineering Mechanics
The point, through which the whole weight of the body acts, irrespective of its position, is known as

Moment of inertia
Center of mass
Center of gravity
Center of percussion

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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
ml2/8
ml2/12
ml2/4

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Engineering Mechanics
Moment of inertia of a circular section about an axis perpendicular to the section is

πd4/32
πd3/16
πd3/32
πd4/64

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