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Engineering Mechanics

Engineering Mechanics
The maximum efficiency of a lifting machine is

1/m
1/(m × V.R.)
V.R./m
m/V.R.

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Engineering Mechanics
The rate of doing work is known as

None of these
Potential energy
Power
Kinetic energy

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Engineering Mechanics
Mass moment of inertia of a uniform thin rod of mass M and length (l) about its mid-point and perpendicular to its length is

(1/12) Ml²
(2/3) Ml²
(1/3) Ml²
(3/4) Ml²

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Engineering Mechanics
An ideal machine is one whose efficiency is

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

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Engineering Mechanics
The overturning of a vehicle on a level circular path can be avoided if the velocity of vehicle is __________ √(gra/h)

Equal to
Greater than
Less than
None of these

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Engineering Mechanics
A pendulum which executes one beat per second is known as

Compound pendulum
Second's pendulum
Simple pendulum
Torsional pendulum

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