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Engineering Mechanics

Engineering Mechanics
The force, by which the body is attracted, towards the center of the earth, is called

Momentum
Impulsive force
Mass
Weight

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

Equal to
Less than
Greater than
None of these

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

2π × ω
2π/ω
ω/2π
π/ω

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Engineering Mechanics
A weight of 1000 N can be lifted by an effort of 80 N. If the velocity ratio is 20, the machine is

Ideal
Non-reversible
Reversible
None of these

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Engineering Mechanics
The frequency of oscillation of a compound pendulum is (where kG = Radius of gyration about the centroidal axis, and h = Distance between the point of suspension and C.G. of the body.)

2π. √(kG² + h²/gh)
1/2π. √(kG² + h²/gh)
1/2π. √(gh/kG² + h²)
2π. √(gh/kG² + h²)

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

Greater than
Less than
None of these
Equal to

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MORE MCQ ON Engineering Mechanics

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