Top 150+ Solved Dynamics of Machinery MCQ Questions Answer
Q. Sound wave has two main characteristics which are
a. Pitch and loudness
b. Tone and loudness
c. Highness and loudness
d. Rarefaction and compression
Q. When waves bend away from straight lines of travel, it is called
a. Reflection
b. Diffraction
c. Rarefaction
d. Refraction
Q. _________ is the sound power measured over the area upon which is received.
a. Sound pressure
b. Sound energy
c. Sound intensity
d. Sound pressure level
Q. It is an audio transducer that converts acoustic pressure in air into its equivalentelectrical impulses
a. Loudspeaker
b. Amplifier
c. Baffle
d. Microphone
Q. _________ is a pressure type microphone with permanent coil as a transducingelement.
a. Dynamic
b. Condenser
c. Magnetic
d. Carbon
Q. A capacitor stores energy in the form of an electrostatic field is a ______.
a. Dynamic Microphone
b. Condenser Microphone
c. Magnetic Microphone
d. Carbon Microphone
Q. It describes the output of a microphone over a range of frequencies.
a. Directivity
b. Sensitivity
c. Frequency response
d. All of the above
Q. The most important terms that are used to describe the sound field around asound emitting object
a. Far , Near Field
b. Free ,Diffuse Field
c. A and B both
d. None of the above
Q. The sound waves behave in a much more complex fashion, and there is no fixedrelationship between ________________.
a. Sound pressure
b. pressure and distance
c. Sound energy
d. Sound intensity
Q. The sound far field is beginning at a distance of ____________ .
a. pressure and distance
b. Sound energy
c. Sound pressure
d. 2 wavelengths away from the sound source
Q. Measurement of noise can be made in following environment ____________
a. Anechoic Chamber
b. Semi - anechoic Chamber
c. Reverberant Chamber
d. All the above