The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is_________________?

Related Mcqs:

Noise pollution level in a chemical plant is expressed in __________________?

A. Roentgen B. Decibel C. Hertz D. None of these...

Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about ______________ ppm (parts per million)?

A. 0.002 B. 0.2 C. 1.2 D. 4.8...

Green house effect is accentuated by________________?

A. Deforestation B. Rapid industrialisation C. Increased transportation activity D. All A., B. and C....

The lowest layer of atmosphere is known as the_____________________?

A. Stratosphere B. Troposphere C. Ionosphere D. None of these...

Exposure to chemicals having carcinogenic properties cause___________________?

A. Dermatitis (skin disorder) B. Cancer C. Asphyxiation D. Asthma...