B.
5 day BOD is greater than 4 day BOD keeping other conditions sameA
C.5 day BOD is less than 4 day BOD keeping other conditions same>
D.
BOD does nof depend on time
Q.2:
If the coliform bacteria is present in a sample of water, then the coliform test to be conducted is_____________?q
A.
1) presumptive coliform test
B.
2) confirmed coliform test
C.
3) completed coliform test
D.
The correct answer is ?
Q.3:
The devices which are installed for drawing water from the sources are called______________?\
A.
aquifers
B.
aquiclude
C.
filters
D.intakes
Q.4:
The per capital consumption of a locality is affected by_________________?J
A.
1) climatic conditions
B.
2) quality of water
C.
3) distribution pressure
D.
The correct answer is?
Q.5:
Assertion A : The consumption of water increases with increase in the distribution pressure. Reason R : Higher distribution pressure causes more loss and waste of water. Select your answer according to 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 true
Q.6:
Which of the following causes a decrease in per capita consumption ?D
A.use of metering system
B.
good quality of water
C.
better standard of living of the people'
D.
hotter climate
Q.7:
If the average daily consumption of a city is 100,000 m3, the maximum daily consumption on peak hourly demand will be_______________?
A.
100000m3
B.
150000m3
C.
180000m3
D.270000 m3
Q.8:
As compared to geometrical increase method of forecasting population, arithmetical increase method gives________________?y
A.lesser value
B.
higher value
C.
same value
D.
accurate value
Q.9:
The suitable method of forecasting population for a young and rapidly increasing city is_________________?l
A.
arithmetical increase method
B.geometrical increase method
C.
incremental increase method
D.
graphical method
Q.10:
Select the correct relationship between porosity (N), specific yield (y) and specific retention (R)________________?t