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Engineering Mechanics

Engineering Mechanics
The moment of inertia of a solid cone of mass ‘m’ and base radius ‘r’ about its vertical axis is

4mr²/5
2mr²/5
3mr²/5
3mr²/10

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Engineering Mechanics
The total energy possessed by a system of moving bodies

Is minimum in the start and maximum at the end
Is maximum in the start and minimum at the end
Varies from point to point
Is constant at every instant

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Engineering Mechanics
The range of projectile (R) on an upward inclined plane is

2u². sin (α - β). cos α/g. cos² β
2u². sin (α + β). cos α/g. cos² β
g. cos² β/2u². sin (α - β). cos α
g. cos² β/2u². sin (α + β). cos α

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Engineering Mechanics
The overturning of a vehicle on a level circular path can be avoided if the velocity of vehicle is __________ √(gra/h)

Equal to
None of these
Less than
Greater than

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Engineering Mechanics
For a self locking machine, the efficiency must be

1
Equal to 50%
Less than 50%
Greater than 50%

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Engineering Mechanics
In actual machines, mechanical advantage is _________ velocity ratio.

Less than
Greater than
None of these
Equal to

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MORE MCQ ON Engineering Mechanics

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