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

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

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
A body is said to be under forced vibrations, when

None of these
No external force acts on a body, after giving it an initial displacement
There is a reduction in amplitude after every cycle of vibration
A body vibrates under the influence of external force

ANSWER DOWNLOAD EXAMIANS APP