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Engineering Mechanics

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

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

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Engineering Mechanics
The centre of gravity a T-section 100 mm × 150 mm × 50 mm from its bottom is

87.5 mm
75 mm
125 mm
50 mm

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Engineering Mechanics
In order to determine the effects of a force, acting on a body, we must know

Nature of the force i.e. whether the force is push or pull
Line of action of the force
All of these
Magnitude of the force

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Engineering Mechanics
The ratio of limiting friction and normal reaction is known as

Angle of friction
Sliding friction
Angle of repose
Coefficient of friction

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Engineering Mechanics
The moment of inertia of a thin disc of mass ‘m’ and radius ‘r’, about an axis through its center of gravity and perpendicular to the plane of the disc is

mr²/2
mr²/8
mr²/4
mr²/6

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Engineering Mechanics
A framed structure is perfect, if the number of members are __________ (2j - 3), where j is the number of joints.

Less than
Greater than
Equal to
None of these

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MORE MCQ ON Engineering Mechanics

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