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Engineering Mechanics

Engineering Mechanics
Moment of inertia of a circular section about its diameter (d) is

πd3/32
πd4/32
πd4/64
πd3/16

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

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

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Engineering Mechanics
The velocity ratio in case of an inclined plane inclined at angle 'θ' to the horizontal and weight being pulled up the inclined plane by vertical effort is

tanθ
sinθ
cosθ
cosecθ

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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

3mr²/5
3mr²/10
4mr²/5
2mr²/5

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Engineering Mechanics
The linear acceleration (a) of a body rotating along a circular path of radius (r) with an angular acceleration of α rad/s2, is

None of these
a = α/ r
a = α.r
a = r / α

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Engineering Mechanics
The friction experienced by a body, when in motion, is known as

Rolling friction
Limiting friction
Static friction
Dynamic friction

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MORE MCQ ON Engineering Mechanics

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