Dynamics of Machinary MCQs with answers Page - 6

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Q. An accelerometer is an instrument used to measure the _________ of a vibrating body.

  • (A) displacement
  • (B) velocity
  • (C) acceleration
  • (D) all of the above

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Q. Stroboscope is used for the measurement of _________________?

  • (A) Rpm of a flywheel
  • (B) Frequency of light
  • (C) Depression of freezing point
  • (D) Liquid level under pressure

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Q. A seismometer is a device used to measure the ___________ of a vibrating body.

  • (A) displacement
  • (B) velocity
  • (C) acceleration
  • (D) all of the above

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Q. The instruments which are used to measure the ___________ of a vibrating body are called vibration measuring instrument.

  • (A) displacement
  • (B) velocity
  • (C) acceleration
  • (D) all of the above

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Q. 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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Q. Which of the following instruments measure the amplitude of a vibrating body?

  • (A) Vibrometers
  • (B) Seismometer
  • (C) Both (a) and (b)
  • (D) None of these

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Q. Which of the following systems produce a vibration in the foundation?

  • (A) Coupled machine
  • (B) Uncoupled machine
  • (C) Balanced machine
  • (D) Unbalanced machine

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Q. What does the accelerometer measure?

  • (A) Mass
  • (B) Acceleration
  • (C) Velocity
  • (D) Distance

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Q. Which of the following device can be used for measurement of frequency?

  • (A) Voltmeter
  • (B) Ammeter
  • (C) Stroboscope
  • (D) None of the mentioned

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Q. Which of the following is correct regarding isolation factor?

  • (A) Dimensionless quantity
  • (B) Has Newton as its unit
  • (C) Has joule as its Unit
  • (D) Has Hz as its unit

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