Harmonic motion is A) Necessarily a periodic motion B) An aperiodic motion C) A motion described in a circle D) A random motion

Harmonic motion is
A) Necessarily a periodic motion
B) An aperiodic motion
C) A motion described in a circle
D) A random motion
by

1 Answer

Answer :

A) Necessarily a periodic motion
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Related questions

If frequency of excitation of a forced vibration system with negligible damping is very close to natural frequency of the system, then the system will A) Execute harmonic motion of large amplitude B) Beat with a very high peak amplitude C) Perform aperiodic motion D) None of the above

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Last Answer : A) Execute harmonic motion of large amplitude

If motion repeats itself after interval of time, it is called as _________ A. Periodic B. Aperiodic C. Repeating D. None of the above

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Last Answer : (1) a periodic motion Explanation: The motion of a body that repeats itself after a regular interval of time is called 'Periodic Motion'. Simple Harmonic Motion is a type of periodic motion where the restoring force is directly proportional to the displacement.

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Last Answer : C) An square

What is meant by critical damping coefficient? A Frequency of damped free vibrations is less than zero B The motion is aperiodic in nature C Both a. and b. D None of the above

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Last Answer : B The motion is aperiodic in nature

What is meant by critical damping coefficient? B ( A )Frequency of damped free vibrations is less than zero ( B )The motion is aperiodic in nature ( C )Both a. and b. (D)None of the above

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Last Answer : C Leads the displacement vector by 90 0

The motion of a system executing harmonic motion with one natural frequency is known as _______ A. principal mode of vibration B. natural mode of vibration C. both a. and b. D. none of the above

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The motion of a system executing harmonic motion with one natural frequency is known as _______ A) principal mode of vibration B) natural mode of vibration C) both a. and b. D)none of the above

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Last Answer : C) Leads the displacement vector by 90°

The velocity vector in a vector diagram for a harmonic motion A) Lags the displacement vector by 180° B) Leads the displacement vector by 90° C) Lags the displacement vector by 90° D) Leads the displacement vector by 180°

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Calculate damped natural frequency, if a spring mass damper system is subjected to periodic disturbing force of 30 N. Damping coefficient is equal to 0.76 times of critical damping coefficient and undamped natural frequency is 5 rad/sec A. 3.99 rad/sec B. 2.13 rad/sec C. 4.12 rad/sec D. 3.24 rad/sec

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Last Answer : (B) foundation

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Last Answer : a) True

When the particles of the shaft or disc move in a circle about the axis of the shaft, then the vibrations are known as ___________ . A Longitudinal vibrations B Transverse vibrations C Torsional vibrations D None of these

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Longitudinal vibrations are said to occur when the particles of a body moves A Perpendicular to its axis B Parallel to its axis C In a circle about its axis D None of the mentioned

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Last Answer : B Parallel to its axis

When the particles of the shaft or disc move in a circle about the axis of the shaft, then the vibrations are known as ___________ . A. longitudinal vibrations B. transverse vibrations C. torsional vibrations D. none of these

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Last Answer : C. torsional vibrations

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Last Answer : b) parallel to its axis

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Last Answer : b) parallel to its axis

The accelerometer is used as a transducer to measure earthquake in Richter scale. Its design is based on the principle that A Its natural frequency is very low in comparison to the frequency of vibration B Its natural frequency is very high in comparison to the frequency of vibration C Its natural frequency is equal to the frequency of vibration D Measurement of vibratory motion is without any reference point

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Last Answer : C Its natural frequency is equal to the frequency of vibration