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Chemical Engineering - Environmental Engineering

Exercise : Environmental Engineering - Section 3
6.
Workers working in __________ industry are most prone to white lung cancer.
coal mining
limestone mining
textile
asbestos
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
A standard test for determination of hardness in water is termed as __________ test.
EDTA
electometric
total count
presumptive
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
TLV of lead for public sewer/waste water is about __________ ppm.
1
25
150
650
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
Presence of nitrates in water in excess of 50 ppm causes
mathenoglobenemia
gastroentetitis
asphyxiation
tooth decay
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks.
1 to 2
4 to 5
9 to 10
15 to 20
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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