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Engineering Mechanics

Engineering Mechanics
The moment of inertia of a square of side (a) about an axis through its center of gravity is

a4/36
a4/12
a4/4
a4/8

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Engineering Mechanics
The moment of inertia of a solid cone of mass ‘m’ and base radius ‘r’ about its vertical axis is

4mr²/5
2mr²/5
3mr²/10
3mr²/5

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Engineering Mechanics
Which of the following are vector quantities?

Linear velocity
Linear displacement
Linear acceleration
All of these

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Engineering Mechanics
The velocity ratio of a single purchase crab winch can be increased by

Increasing the number of teeth of the pinion
Increasing the radius of the load drum
Increasing the length of the handle
All of these

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

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

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Engineering Mechanics
An ideal machine is one whose efficiency is

Between 60 and 70 %
1
Between 80 and 90%
Between 70 and 80%

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MORE MCQ ON Engineering Mechanics

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