Question: Color test of water is done with an instrument called
[A].tintometer
colorimeter
electro-chemical cell
turbidimeter
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Environmental Engineering
In water treatment, alum[Al2(SO4)3] is used for the process of
Question: In water treatment, alum[Al2(SO4)3] is used for the process of
[A].filtration
coagulation
sedimentation
disinfection
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
In a sedimentation tank, the detention period for water ranges from __________ hours.
Question: In a sedimentation tank, the detention period for water ranges from __________ hours.
[A].2 to 4
8 to 12
16 to 20
24 to 32
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
A standard test for determination of hardness in water is termed as __________ test.
Question: A standard test for determination of hardness in water is termed as __________ test.
[A].EDTA
electometric
total count
presumptive
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Infective bacteria in water is killed by the __________ process.
Question: Infective bacteria in water is killed by the __________ process.
[A].sterilisation
aeration
disinfection
none of these
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Maximum permissible turbidity in potable water is __________ ppm.
Question: Maximum permissible turbidity in potable water is __________ ppm.
[A].1
10
250
1000
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Growth of __________ is promoted by the presence of manganese in water.
Question: Growth of __________ is promoted by the presence of manganese in water.
[A].files
algae
micro-organisms
mosquitoes
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
__________ is the process of killing organism in water.
Question: __________ is the process of killing organism in water.
[A].Coagulation
Sterilisation
Disinfection
Sedimentation
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from __________ ppm.
Question: A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from __________ ppm.
[A].1000 to 2000
3000 to 6000
6000 to 9000
10000 to 100000
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
__________ content of the phosphate rock is the pollutant of primary interest in a phos-phatic fertiliser plant.
Question: __________ content of the phosphate rock is the pollutant of primary interest in a phos-phatic fertiliser plant.
[A].Calcium
Fluorine
Phosphorous
Sulphur
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.