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Theory of Machine

Theory of Machine
The periodic time of one oscillation for a simple pendulum is

2π. √(l/g)
(1/2π). √(l/g)
2π. √(g/l)
(1/2π). √(g/l)

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Theory of Machine
The ratio of maximum fluctuation of energy to the work-done per cycle is called

Coefficient of fluctuation of energy
Maximum fluctuation of energy
None of these
Fluctuation of energy

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Theory of Machine
The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness of the body, and δ = Static deflection of the body)

Any one of the listed here
0.4985/√δ
1/2π × √(s/m)
1/2π × √(g/δ)

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Theory of Machine
If ω/ωn is very high for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach

0°
90°
360°
180°

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Theory of Machine
In a coupling rod of a locomotive, each of the four pairs is a ________ pair.

Sliding
Screw
Turning
Rolling

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Theory of Machine
The Coriolis component of acceleration is taken into account for

Slider crank mechanism
Quick return motion mechanism
All of these
Four bar chain mechanism

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