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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
When a body of mass moment of inertia 'I' (about a given axis) is rotated about that axis with an angular velocity to, then the kinetic energy of rotation is

Iω
Iω2
0.5 Iω2
0.5 Iω

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Engineering Mechanics
The acceleration of a body sliding down an inclined surface is

g sinθ
g tanθ
g cosθ
None of these

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Engineering Mechanics
The angle between two forces when the resultant is maximum and minimum respectively are

90° and 180°
90° and 0°
180° and 0°
0° and 180°

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Engineering Mechanics
The forces, which meet at one point, but their lines of action do not lie in a plane, are called

Non-coplanar non-concurrent forces
Intersecting forces
Coplanar non-concurrent forces
Non-coplanar concurrent forces

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Engineering Mechanics
A smooth cylinder lying on a __________ is in neutral equilibrium.

Horizontal surface
Convex surface
Curved surface
None of these

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