Dynamics of Machinery MCQs | Page - 18

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M

Mr. Dubey • 52.61K Points
Coach

Q. The sound waves behave in a much more complex fashion, and there is no fixed relationship between ________________.

(A) Sound pressure
(B) pressure and distance
(C) Sound energy
(D) Sound intensity
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M

Mr. Dubey • 52.61K Points
Coach

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
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M

Mr. Dubey • 52.61K Points
Coach

Q. Measurement of noise can be made in following environment ____________

(A) Anechoic Chamber
(B) Semi - anechoic Chamber
(C) Reverberant Chamber
(D) All the above
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R

Rakesh Kumar • 28.44K Points
Instructor II

Q. Seismometer can be used to measure acceleration of any instrument only if _____

(A) it's natural frequency is high
(B) it generates output signal which is proportional to relative acceleration of the vibrating object
(C) both a. and b.
(D) none of the above
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S

Shiva Ram • 30.44K Points
Instructor I

Q. 'Eardrum' bursts at

(A) 40 dB
(B) 80 dB
(C) 160 dB
(D) 320 dB
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R

Ranjeet • 34.60K Points
Instructor I

Q. The loudness of sound varies directly with the vibrating body's

(A) Intensity
(B) Amplitude
(C) Pitch
(D) Quality
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S

Shiva Ram • 30.44K Points
Instructor I

Q. According to which method, maximum kinetic energy at mean position is equal to maximum potential energy at extreme position?

(A) Energy method
(B) Rayleigh's method
(C) Equilibrium method
(D) All of the above
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