The maximum depth of sedimentation tanks is limited to________________?
The maximum depth of sedimentation tanks is limited to________________?
A. 2 m
B. 3 m
C. 4 m
D. 5 m
E. 6 m
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The fire demand of a city may be worked out by _________________?
The fire demand of a city may be worked out by _________________?A. Kuichling’s formula
B. Freeman formula
C. Under Writers formula
D. Bustan’s formula
E. All the above.Surge tanks are used_______________?
Surge tanks are used_______________?A. for storage water
B. to increase the velocity in a pipeline
C. as overflow valves
D. to guard against water hammerFor determining the velocity of flow of underground water, the most commonly used non-empirical formula is________________?
For determining the velocity of flow of underground water, the most commonly used non-empirical formula is________________?A. Darcy’s formula
B. Slichter’s formula
C. Hazen’s formula
D. Lacy’s formulaThe least thickness of class B cast iron (spun) pipe, is_________________?
The least thickness of class B cast iron (spun) pipe, is_________________?A. 7.2 mm
B. 7.9 mm
C. 8.6 mm
D. 10 mmCorrosion of well pipes may not be reduced by_________________?
Corrosion of well pipes may not be reduced by_________________?A. reducing the draw down and the pumg rate
B. reducing the flow velocity
C. using thicker pipes
D. using screens having larger area of openings
E. none of theseIf four fires break out in a city of population 40 lakhs and if each hydrant has three streams and duration of each fire is four hours, the total quantity of water required, is______________________?
If four fires break out in a city of population 40 lakhs and if each hydrant has three streams and duration of each fire is four hours, the total quantity of water required, is______________________?A. 1880 kilo litres
B. 2880 kilo litres
C. 3880 kilo litres
D. 4880 kilo litres