The characteristics of fresh and septic sewage respectively are____________________?
B. alkaline and acidic(Correct)
C. both acidic
D. both alkaline
B. alkaline and acidic(Correct)
C. both acidic
D. both alkaline
B. alkaline and acidic(Correct)
C. both acidic
D. both alkaline
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The population of a town in three consecutive years are 5000, 7000 and 8400 respectively. The population of the town in the fourth consecutive year according to geometrical increase method is________________?
The population of a town in three consecutive years are 5000, 7000 and 8400 respectively. The population of the town in the fourth consecutive year according to geometrical increase method is________________?A. 9500
B. 9800
C. 10100
D. 10920BOD of raw municipal sewage may be in the range of about __________ mg/litre.
Question: BOD of raw municipal sewage may be in the range of about __________ mg/litre.
[A].1-2 [B].
5-10 [C].
150-300 [D].
2000-3000 Answer: Option C
Explanation:
No answer description available for this question.
Foaming and priming in boiler operation can be reduced by reduction in __________ in feed water.
Question: Foaming and priming in boiler operation can be reduced by reduction in __________ in feed water.
[A].turbidity [B].
color (Hazen) [C].
total solids [D].
all (a), (b) & (c) Answer: Option D
Explanation:
No answer description available for this question.
Assertion A: Slow sand filters are more efficient in removal of bacteria than rapid sand filters. Reason R : The sand used in slow sand filters is finer than that in rapid sand filters. Select your answer based on the coding system given below?
Assertion A: Slow sand filters are more efficient in removal of bacteria than rapid sand filters. Reason R : The sand used in slow sand filters is finer than that in rapid sand filters. Select your answer based on the coding system given below?A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is trueFacultative bacteria are able to work in________________?
Facultative bacteria are able to work in________________?A. presence of oxygen only
B. absence of oxygen only
C. presence as well as in absence of oxygen
D. presence of waterIn water treatment plant, zeolite process is used to remove the __________ of water.
Question: In water treatment plant, zeolite process is used to remove the __________ of water.
[A].acidity [B].
alkalinity [C].
hardness [D].
iron & zinc Answer: Option C
Explanation:
No answer description available for this question.