Shuttleless Weaving (MCQ : SECTION - 12)

 

Question 1: Match the pairs

A. Unit of sound pressure 1. dB
B. Unit of sound intensity 2. μPa
C. Unit of sound level 3. W/m2

(A3, B1, C2)
(A1, B2, C3)
(A2, B3, C1)

Question 2 : A noise of intensity 10-5 W/m2 has noise level of

0.5 dB
5.0 dB
70 dB
50 dB

 

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