Theory of Machine
In a system subjected to damped forced vibrations, the ratio of maximum displacement to the static deflection is known as

Critical damping ratio
Damping factor
Magnification factor
Logarithmic decrement

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Theory of Machine
The steering of a ship means

Turning of a complete ship in a curve towards right or left, while it moves forward
None of these
Movement of a complete ship up and down in vertical plane about transverse axis
Rolling of a complete ship sideways

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Theory of Machine
When a mass of a critically damped single degree of freedom system is deflected from its equilibrium position and released, then it will

Oscillate with increasing time period
Oscillate with decreasing amplitude
Return to equilibrium position without oscillation
Oscillate with constant amplitude

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