Top 150+ Solved Dynamics of Machinery MCQ Questions Answer
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
Q. Which of the following systems produce a vibration in the foundation?
a. Coupled machine
b. Uncoupled machine
c. Balanced machine
d. Unbalanced machine
Q. Which of the following device can be used for measurement of frequency?
a. Voltmeter
b. Ammeter
c. Stroboscope
d. None of the mentioned
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
Q. If the damper is not provided and the system is in resonance, which of the following is the correctisolation factor?
a. 0
b. 0.5
c. 0.25
d. Infinity
Q. Which part of human ear converts sound vibrations into electrical signals
a. Hammer
b. Stirrup
c. Tympanic membrane
d. Cochlea
Q. Sound is measured by units that are called
a. Hertz (Hz)
b. Decibels (dB)
c. Meters (m)
d. Pascal (Pa)
Q. The loudness of sound varies directly with the vibrating body's
a. Intensity
b. Amplitude
c. Pitch
d. Quality
Q. The scale to measure the intensity level of sound is called
a. Vector scale
b. Measuring ruler
c. Bel scale
d. decibel scale
Q. Following scale is used for loudness of sound or noise
a. Linear scale
b. Logarithmic scale
c. Exponential scale
d. None of the above