Civil Engineering - Water Supply Engineering
Exercise :: Water Supply Engineering - Section 2
46.
A water channel supported above the ground over trestles, is generally called
A.
flume B.
canal C.
adueduct D.
tunnel E.
all the above.
Answer: Option A
Explanation:
47.
If d is the diameter of the pipe, p is the total internal pressure, f is the permissible tensile stress and n is the effective of the joint, the thickness t of metal pipe, is
Answer: Option B
Explanation:
48.
One degree of hardness of water means a content of salts of
A.
10.25 mg/litre B.
12.25 mg/litre C.
14.25 mg/litre D.
16.25 mg/litre. E.
20 mg/litre.
Answer: Option C
Explanation:
49.
Mostly used coagulant, is
A.
chlorine B.
alum C.
lime D.
bleaching powder.
Answer: Option B
Explanation:
50.
If G is the specific gravity of particles of diameter d , the velocity of settlement V in still water at T °C, according to Stoke's law, is
Answer: Option A
Explanation: