In distribution pipes, drain valves are provided at
A. lower point
B. higher point
C. junction points
D. any where
Answer: Option A
A. lower point
B. higher point
C. junction points
D. any where
Answer: Option A
The fire demand of a city may be worked out by
A. Kuichling’s formula
B. Freeman formula
C. Bustan’s formula
D. All the above
Mathamoglobinemia or blue baby disease is caused due to
A. Chlorides
B. Nitrites
C. Nitrates
D. Sulphides
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