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Environmental-Engineering
Environmental Engineering Online Quiz Questions Answers
Posted On:
December 9, 2018
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Environmental Engineering Online Quiz Questions
1. Which of the following causes a decrease in per capita consumption ?
use of metering system
good quality of water
better standard of living of the people
hotter climate
2. The hourly variation factor is usually taken as ______.
1.5
1.8
2.0
2.7
3. If the average daily consumption of a city is 100,000 m3, the maximum daily consumption on peak hourly demand will be _____.
100000m3
150000m3
180000m3
270000 m3
4. The distribution mains are designed for ______.
maximum daily demand
maximum hourly demand
average daily demand
maximum hourly demand on maximum day
5. As compared to geometrical increase method of forecasting population, arithmetical increase method gives _____.
lesser value
higher value
same value
accurate value
6. 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 ____.
9500
9800
10100
10920
7. The suitable method of forecasting population for a young and rapidly increasing city is _____.
arithmetical increase method
geometrical increase method
incremental increase method
graphical method
8. The depression of water table in a well due to pumping will be maximum
at a distance R from the well
close to the well
at a distance R/2 from the well
none of the above
9. The devices which are installed for drawing water from the sources are called _____.
aquifers
aquiclude
filters
intakes
10. Select the correct relationship between porosity (N), specific yield (y) and specific retention (R)
N = y + R
y = N + R
R = N + y
R > (N + y)
11. The type of valve, which is provided on the suction pipe in a tube-well, is _____.
air relief valve
reflux valve
pressure relief valve
sluice valve
12. The maximum discharge of a tube-well is about _____.
5 litres/sec
50 litres/sec
500 litres/sec
1000 litres/see
13. As compared to shallow-wells, deep wells have
more depth
less depth
more discharge
less discharge
14. Ground water is usually free from
suspended impurities
dissolved impurities
both suspended and dissolved impurities
none of the above
15. The polluted water is one which _____.
contains pathogenic bacteria
consists of undesirable substances rendering it unfit for drinking and domestic use
is safe and suitable for drinking and domestic use
is contaminated
16. Which of the following is not a water borne disease ?
dysentery
cholera
typhoid
maleria
17. The most common cause of acidity in water is ______.
carbon dioxide
oxygen
hydrogen
nitrogen
18. The phenolic compounds in public water supply should not be more than _____.
0.1 ppm
0.01 ppm
0.001 ppm
0.0001 ppm
19. The maximum permissible limit for flouride in drinking water is _____.
0.1 mg/litre
1.5 mg/litre
5 mg/litre
10 mg/litre
20. Standard EDTA (ethylene diamine tetra acetic acid) solution is used to determine the _____.
hardness in water
turbidity in water
dissolved oxygen in water
residual chlorine in water
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