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Engineering Mechanics

Engineering Mechanics
A framed structure is imperfect, if the numbers of members are __________ (2j - 3).

Either (B) or (C)
Equal to
Greater than
Less than

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Engineering Mechanics
The periodic time (T) is given by (where, ω = Angular velocity of particle in rad/s.)

2π/ω
π/ω
ω/2π
2π × ω

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Engineering Mechanics
The range of projectile on a downward inclined plane is ________ the range on upward inclined plane for the same velocity of projection and angle of projection.

Equal to
Less than
More than
None of These

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Engineering Mechanics
The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction in which the force acts. This statement is known as

Newton's third law of motion
Newton's first law of motion
Newton's second law of motion
None of these

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Engineering Mechanics
A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is (where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)

None of these
MS/3
MS/4
MS/5

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Engineering Mechanics
Work done is said to be zero, when

Some force acts on a body, but displacement is zero
Either (A) or (B)
None of these
No force acts on a body but some displacement takes place

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