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- Question
Radioactive solid nuclear wastes are disposed off by
Options- A. high temperature incineration.
- B. pathological incineration.
- C. pyrolysis.
- D. underground burial in concrete containers.
- Correct Answer
- underground burial in concrete containers.
- 1. Pick out the wrong statement.
Options- A. The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere and characterised by a steady decrease in temperature is called stratosphere.
- B. Stratosphere is rich in ozone and is located just above the troposphere.
- C. Troposphere is a turbulent dusty zone containing much of water vapor and clouds.
- D. The earth's atmosphere is an envelope of gases extending upto a height of about 200 kms. Discuss
- 2. If carbon monoxide content in atmospheric air exceeds __________ ppm, death is bound to occur.
Options- A. 50
- B. 500
- C. 1000
- D. 3000 (i.e. 0.3%) Discuss
- 3. Presence of non-biodegradable substances, like alkyl benzene sulphonate (ABS) from the detergents in polluted water stream causes
Options- A. fire hazards.
- B. explosion hazards.
- C. persistent foam.
- D. depletion of dissolved oxygen. Discuss
- 4. Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels.
Options- A. 105
- B. 135
- C. 160
- D. 185 Discuss
- 5. Growth of __________ is promoted by the presence of manganese in water.
Options- A. files
- B. algae
- C. micro-organisms
- D. mosquitoes Discuss
Environmental Engineering problems
Search Results
Correct Answer: The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere and characterised by a steady decrease in temperature is called stratosphere.
Correct Answer: 3000 (i.e. 0.3%)
Correct Answer: persistent foam.
Correct Answer: 135
Correct Answer: micro-organisms
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