A. Hearing loss
B. Rupture of ear drum
C. Nervousness & fatigue
D. All A., B. & C.
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Related Mcqs:
- The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about ____________ decibels?
- A. 60 B. 90 C. 105 D. 120...
- Major sources of noise in furnace operation arises from air inspirators, combustion, side wall vibrations and fluctuation in the process heat load. A 50% increase in fuel firing rate may increase the furnace noise level by about ____________ decibels?
- A. 3 B. 30 C. 7 D. 70...
- Aerodynamic noise resulting from turbulent gas flow is the most prevalent source of valve noise in fluid flow control. It is caused due to_________________?
- A. Reynold stresses B. Shear forces C. Both A. & B. D. Neither A. nor B....
- Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about ______________ decibels?
- A. 20 B. 60 C. 90 D. 120...
- The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is_________________?
- A. Pipe vibrations B. Cavitation C. Boundary layer separation D. Fluctuation in liquid flow...
- Industrial workers working in leather tanning & manufacturing units are prone to suffer from ___________________?
- A. Respiratory ailments (e.g. bronchitis) B. Skin diseases (e.g. dermatitis) C. Silicosis D. Blurred vision...
- Thermal pollution due to excessive heat & temperature in the working place causes__________________?
- A. Reduction in working efficiency of manpower B. Fatigue C. High breathing rate D. All A., B. & C....
- Noise level inside a jet airliner in normal flight is about ______________ decibels?
- A. 80 B. 100 C. 125 D. 150...
- Noise level during normal conversation among men is about ______________ decibels?
- A. 10 B. 45 C. 90 D. 115...
- Noise level heard at a distance of about 100 metres from a jet engine with after burner is about _____________ decibels?
- A. 120 B. 140 C. 170 D. 200...
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