Introduction To Mechanical Vibration: Week 0 : Assignment 0 Solution

 

1 point

Which type of vibrations are also known as transient vibrations?

 Undamped vibrations

 Damped vibrations

 Torsional vibrations

 Transverse vibrations

Yes, the answer is correct.
Score: 1

Accepted Answers:

Damped vibrations

1 point

Longitudinal vibrations are said to occur when the particles of a body moves

 perpendicular to its axis

  parallel to its axis

 in a circle about its axis

 none of the mentioned

Yes, the answer is correct.
Score: 1

Accepted Answers:

 parallel to its axis

1 point

What are deterministic vibrations?

 Vibrations caused due to known exciting force

 Vibrations caused due to unknown exciting force

 Vibrations which are aperiodic in nature

 None of the above

Yes, the answer is correct.
Score: 1

Accepted Answers:

Vibrations caused due to known exciting force

1 point

The ratio of the maximum displacement of the forced vibration to the deflection due to the static force, is known as

 damping factor

 damping coefficient

 logarithmic decrement

 magnification factor

Yes, the answer is correct.
Score: 1

Accepted Answers:

magnification factor

1 point

For an underdamped harmonic oscillator, resonance 

 occurs when excitation frequency is greater than undamped natural frequency

 ccurs when excitation frequency is less than undamped natural frequency

 occurs when excitation frequency is equal to undamped natural frequency

 never occurs

Yes, the answer is correct.
Score: 1

Accepted Answers:

occurs when excitation frequency is equal to undamped natural frequency