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Engineering Mechanics

Engineering Mechanics
The coefficient of friction depends upon

Nature of surfaces
Area of contact
Shape of the surfaces
All of these

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

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

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Engineering Mechanics
Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its C.G. and parallel to the depth (d), is

bd³/12
db³/36
bd³/36
db³/12

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

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

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Engineering Mechanics
The amplitude is always __________ radius of the circle.

None of these
Greater than
Equal to
Less than

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Engineering Mechanics
The acceleration of a particle moving with simple harmonic motion is __________ at the mean position.

Minimum
Maximum
Zero
None of these

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MORE MCQ ON Engineering Mechanics

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