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Engineering Mechanics

Engineering Mechanics
The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.

None of these
Less than
Equal to
Greater than

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Engineering Mechanics
The velocity ratio of a differential wheel and axle with 'D' as the diameter of effort wheel and d1 and d2 as the diameters of larger and smaller axles respectively, is

2D/(d₁ + d₂)
D/(d₁ + d₂)
D/(d₁ - d₂)
2D/(d₁ - d₂)

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Engineering Mechanics
Center of gravity of a thin hollow cone lies on the axis at a height of

One-half of the total height above base
Three-eighth of the total height above the base
One-third of the total height above base
One-fourth of the total height above base

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Engineering Mechanics
Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its C.G. and parallel to the width (b), is

db³/36
bd³/12
bd³/36
db³/12

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

Kinetic energy
Potential energy
Electrical energy
Chemical energy

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Engineering Mechanics
The range of projectile will be maximum for a given velocity of projectile, when the angle of projection (α) is

β/2
30° + β/2
60° + β/2
45° + β/2

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