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Engineering Mechanics

Engineering Mechanics
The resultant of two equal forces ‘P’ making an angle ‘θ’, is given by

2P sinθ/2
2P cotθ/2
2P tanθ/2
2P cosθ/2

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

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Engineering Mechanics
The algebraic sum of moments of the forces forming couple about any point in their plane is

Equal to the moment of the couple
Both of above are wrong
Both of above are correct
Constant

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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
2mr²/5
4mr²/5
3mr²/10

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Engineering Mechanics
Moment of inertia is the

Second moment of force
Second moment of mass
Second moment of area
All of these

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Engineering Mechanics
Tension in the cable supporting a lift is more when the lift is moving __________ with an acceleration.

Downwards
Upwards
None of these
Horizontal

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