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Engineering Mechanics

Engineering Mechanics
The rate of doing work is known as

Power
Kinetic energy
None of these
Potential energy

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Engineering Mechanics
The velocity ratio of a simple wheel and axle with D and d as the diameters of effort wheel and load axle, is

D / d
D - d
D + d
D × d

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Engineering Mechanics
A cable with a uniformly distributed load per horizontal meter run will take the following shape

Straight line
Parabola
Elliptical
Hyperbola

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Engineering Mechanics
The centre of percussion of the homogeneous rod of length ‘L’ suspended at the top will be

3L/4
2L/3
L/2
L/3

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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

ml2/12
ml2/4
ml2/ 6
ml2/8

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

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

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MORE MCQ ON Engineering Mechanics

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