Persons working in cement plants and limestone quarries are more prone to disease like__________________?

Related Mcqs:

1. Workers working in _______________ industry are most prone to white lung cancer?

   A. Coal mining
   B. Limestone mining
   C. Textile
   D. Asbestos

2. 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

3. Which of the following is the common pollutant emitted from metallurgical smelters, thermal power plant and cement plants ?

   A. NOx
   B. Hg
   C. SO2
   D. F

4. Limestone powder is injected during pulverised coal burning in boilers to ______________ the flue gases?

   A. Reduce SO2 content in
   B. Catalytically convert SO2 to SO3 in
   C. Increase the dew point of
   D. None of these

5. 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

6. 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

7. A man exposed to excessive noise level in the working environment may suffer from____________________?

   A. Hearing loss
   B. Rupture of ear drum
   C. Nervousness & fatigue
   D. All A., B. & C.

8. 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.

9. Maximum allowable concentration of CO2 in air for safe working is _____________ ppm (parts per million)?

   A. 50
   B. 1000
   C. 2000
   D. 5000

10. ‘Pneumoconiosis’ is a disease caused by the inhalation of ______________ dust?

    A. Coal
    B. Uranium ore
    C. Iron ore
    D. Lime