Exposure to chemicals having carcinogenic properties cause ____________________?

Related Mcqs:

1. Exposure to chemicals having carcinogenic properties cause___________________?

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

2. TLV of NO2 & NO exposure for the human being is 5 & 25 ppm respectively. Prolonged exposure of human being to NO2 causes_________________?

   A. Skin disorder
   B. Bronchitis
   C. Bone disease
   D. Cancer

3. Carcinogenic air pollutants cause__________________?

   A. Bone decay
   B. Cancer
   C. Asphyxiation (suffocation)
   D. Anemia

4. High concentration of carcinogenic hydrocarbon pollutants in atmospheric air causes____________________?

   A. Cancer
   B. Silicosis
   C. Respiratory disease (e.g., asthma)
   D. Reduced crop yield

5. On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because __________________?

   A. Of clotting of blood
   B. Of jamming of respiratory tract
   C. It forms carboxyhemoglobin by combining with haemoglobin of blood, thereby making it
   incapable of absorbing oxygen
   D. It forms CO2 by combining with oxygen present in the blood

6. Lung cancer & DNA breakage are the major ill effects of excessive ozone exposure to human beings. Ozone layer depletion in the atmosphere is mainly caused by the presence of________________?

   A. CO2
   B. SO2
   C. Hydrocarbons
   D. CFC (chloro fluoro carbon)

7. 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

8. Exposure to SO2 containing chimney gases results in the__________________?

   A. Reduction in strength of leather & cloth
   B. Acceleration of corrosion rates of metals
   C. Increased drying & hardening time of paints
   D. All A., B. and C.

9. Exposure to small amount of ______________ results in high blood pressure & heart disease in human beings?

   A. Hydrogen sulphide
   B. Mercury
   C. Cadmium
   D. Asbestos

10. Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate ?

    A. CO
    B. SO2
    C. NOx
    D. CFC (chloro fluoro carbons)