Related Questions

The normal values of over flow rates for secondary sedimentation tanks, ranges between
A 25,000 to 35,000 litres/sqm/day
B 40,000 to 50,000 litres/sqm/day
C 50,000 to 60,000 litres/sqm/day
D 80,000 to 10,000 litres/sqm/day
The normal value of over flow rates for plain primary sedimentation tanks, ranges between
A 25,000 to 35,000 litres/sqm/day
B 40,000 to 50,000 litres/sqm/day
C 50,000 to 60,000 litres/sqm/day
D 80,000 to 100,000 litres/sqm/day
The normal values of over flow rates for sedimentation tanks using coagulant, ranges between
A 25,000 to 35,000 litres/sqm/day
B 40,000 to 50,000 litres/sqm/day
C 50,000 to 60,000 litres/sqm/day
D 80,000 to 100,000 litres/sqm/day
The detention period and overflow rate respectively for plain sedimentation as compared to sedimentation with coagulation are generally
A Less and more
B Less and less
C More and less
D More and more
The overflow rate for plain sedimentation tanks is about
A 500 to 750 liters/hour/m2
B 1000 to 1250 liters/hour/m2
C 1250 to 1500 liters/hour/m2
D 1500 to 2000 liters/hour/m2
The maximum depth of sedimentation tanks is limited to
A 3 m
B 4 m
C 5 m
D 6 m
The maximum depth of sedimentation tanks, is kept
A 3 m
B 3.5 m
C 4 m
D 4.5 m
The detention period for plain sedimentation water tanks, is usually
A 4 to 8 hours
B 8 to 16 hours
C 16 to 24 hours
D 24 to 36 hours
A rectangular tank 10 inch by 8 inch by 4 inch is filled with water. If all of the water is to be transferred to cube-shaped tanks, each one 3 inches on a side, how many of these smaller tanks are needed?
A 9
B 12
C 16
D 21
Two tanks are filled to capacity with automobile fuel. The first tank holds 600 gallons more than the second tank. If 100 gallons were to be pumped from each tank, the first tank would then contain 3 times as much fuel as the second tank. What is the total number of gallons of fuel in the two full tanks?
A 1,400
B 1,200
C 1,000
D 900

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