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Engineering Mechanics

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

Zero
Minimum
Maximum
None of these

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Engineering Mechanics
If rain is falling in the opposite direction of the movement of a pedestrian, he has to hold his umbrella

Less inclined when standing
More inclined when moving
Less inclined when moving
More inclined when standing

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Engineering Mechanics
The slope on the road surface generally provided on the curves is known as

Angle of friction
Angle of banking
None of these
Angle of repose

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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

2mr²/5
3mr²/5
4mr²/5
3mr²/10

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

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

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Engineering Mechanics
The mechanical advantage of a lifting machine is the ratio of

Distance moved by effort to the distance moved by load
Output to the input
All of these
Load lifted to the effort applied

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