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Engineering Mechanics

Engineering Mechanics
If n = number of members and y = number of joints, then for a perfect frame, n = ?

43864
43892
43832
43865

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Engineering Mechanics
Mass moment of inertia of a thin rod about its one end is ___________ the mass moment of inertia of the same rod about its mid-point

Thrice
Same as
Twice
Four times

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Engineering Mechanics
Moment of inertia of a circular section about an axis perpendicular to the section is

πd3/32
πd4/64
πd3/16
πd4/32

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Engineering Mechanics
The friction experienced by a body, when at rest, is known as

Coefficient of friction
Static friction
Dynamic friction
Limiting friction

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Engineering Mechanics
In order to completely specify angular displacement by a vector, it must fix

Magnitude of angular displacement
Direction of the axis of rotation
Sense of angular displacement
All of these

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Engineering Mechanics
The velocity ratio of a differential pulley block with D and d as the diameters of larger and smaller pulley, is

D/(D + d)
2D/(D - d)
D/(D - d)
2D/(D + d)

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