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Engineering Mechanics

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

Equal to
None of these
Greater than
Less than

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Engineering Mechanics
The C.G. of a solid hemisphere lies on the central radius 3r

At distance — from the plane base 3r
At distance — from the plane base 3r
At distance — from the plane base
At distance — from the plane base 3r

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Engineering Mechanics
The energy possessed by a body, for doing work by virtue of its position, is called

Electrical energy
Chemical energy
Potential energy
Kinetic energy

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Engineering Mechanics
In a screw jack, the effort required to lift the load is given by (where W = Load lifted, α = Helix angle, and φ = Angle of friction.)

P = W tan (φ - α)
P = W tan (α - φ)
P = W tan (α + φ)
P = W cos (α + φ)

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Engineering Mechanics
The ideal angle of banking provided on the curves on roads depends upon

Weight of the vehicle
(Velocity)2 of the vehicle
Coefficient of friction between the road and vehicle contact point
Nature of the road surface

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Engineering Mechanics
If a given force (or a given system of forces) acting on a body __________ the position of the body, but keeps it in equilibrium, then its effect is to produce internal stress in the body.

None of these
Change
Does not change
Changes periodically

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