Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about ______________ decibels?

Related Mcqs:

High noise levels produced during operation of fans and compressors can be reduced by using__________________?

A. Mufflers (silencers) B. Acoustic absorbent C. Lagging of noisy duct D. None of these...

The pH value of potable water should be between____________________?

A. 1 to 1.5 B. 6.5 to 8 C. 13 to 14 D. 4 to 5...

Particles having diameter greater than 75 μm (micrometer = 10-6 mm) are called__________________?

A. Grit B. Dust C. Powder D. Smoke...

Maximum permissible limit of industrial noise as recommended by World Health Organisation (WHO) is _____________ decibels?

A. 35 B. 75 C. 95 D. 105...

Aerosols present in atmospheric air may be__________________?

A. Positively charged B. Negatively charged C. Neutral D. Combination of all A., B. & C....