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Chemical Engineering - Environmental Engineering

Exercise : Environmental Engineering - Section 3
1.
In water treatment plant, zeolite process is used to remove the __________ of water.
acidity
alkalinity
hardness
iron & zinc
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm.
10000
5
500
1000
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
Fresh sewage is __________ in nature.
acidic
neutral
alkaline
highly acidic
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
In a sedimentation tank, the detention period for water ranges from __________ hours.
2 to 4
8 to 12
16 to 20
24 to 32
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because
of clotting of blood.
of jamming of respiratory tract.
it forms carboxyhaemoglobin by combining with haemoglobin of blood, thereby making it incapable of absorbing oxygen.
it forms CO2 by combining with oxygen present in the blood.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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