Water Supply Engineering - Part 1 Online Exam Quiz
Water Supply Engineering - Part 1 GK Quiz. Question and Answers related to Water Supply Engineering - Part 1. MCQ (Multiple Choice Questions with answers about Water Supply Engineering - Part 1
Surge tanks are used
Options
A : for storage water
B : to increase the velocity in a pipeline
C : as overflow valves
D : to guard against water hammer.
In slow sland filters, the turbidity of raw water can be removed only up to
Options
A : 60 mg/litre
B : 75 mg/litre
C : 100 gm/litre
D : 150 mg/litre.
Biochemical Oxygen Demand (B.O.D.) of safe drinking water must be
Options
A : nil
B : 5
C : 10
D : 15
The transitional middle portion of a logistic curve follows
Options
A : a geometric growth
B : a logarithmic growth
C : a first over curve
D : a constant rate.
Pick up the incorrect statement from the following regarding fire hydrants
Options
A : Fire hydrants are fitted in water mains at 100 m to 150 m apart at fire
B : The minimum water pressure hydrants, is kept 1.5 kg/cm 2
C : The water at pressure 1 to 1.5 kg/cm 2 is made available for 4 to 5 hours for constant use
D : None of these.
The specific retention is least in case of
Options
A : Clay
B : Sand
C : Silt
D : Coarse gravel.
Most commonly used pump for lifting water in water supply mains, is
Options
A : axialflow pump
B : reciprocating pump
C : rotary type pump
D : centrifugal pumps
Economic height of a dam is the height corresponding to which
Options
A : cost of the dam per unit of storage is minimum
B : amount of silting is less
C : cost of dam per unit storage is maximum
D : free board provided is least
Distribution mains of any water supply, is normally designed for its average daily requirement
Options
A : 100%
B : 150%
C : 200%
D : 225%.
If pH value of water is
Options
A : 7 water it is said to be neutral
B : less than 7 it is said to be acidic
C : more than 7 it is said to be alkaline
D : all the above.
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