are available in size Stoneware sewers________________?
are available in size Stoneware sewers________________?
A. 10 cm
B. 15 cm
C. 20 cm
D. All the above
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It is customary to design a sewer for D.W.F. on the basis of________________?
It is customary to design a sewer for D.W.F. on the basis of________________?A. Average demand
B. Twice the average demand
C. Thrice the average demand
D. Four times the average demandThe presence of free ammonia in sewage, is detected by___________________?
The presence of free ammonia in sewage, is detected by___________________?A. Boiling
B. Adding potassium permanganate
C. Adding sulphuric acid
D. Phenol-di-sulphuric acidWhen drainage to sewage ratio is 20, the peak dry weather flow is_______________?
When drainage to sewage ratio is 20, the peak dry weather flow is_______________?A. 20% of the design discharge
B. Slightly less than 5% of the design discharge
C. Slightly more than 5% of the design discharge
D. None of theseThe vapour pressure over the concave surface is________________?
The vapour pressure over the concave surface is________________?A. less man the vapour pressure over the plane surface
B. equal to the vapour pressure over the plane surface
C. greater than the vapour pressure over the plane surface
D. zero
E. none of the aboveA square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at vater surface. The hydrostatic force on square surface is __________________?
A square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at vater surface. The hydrostatic force on square surface is __________________?A. 9,000 kg
B. 13,500 kg
C. 18,000 kg
D. 27,000 kg
E. 30,000 kgThe following is the physical characteristic of sewage___________________?
The following is the physical characteristic of sewage___________________?A. Turbidity
B. Colour
C. Odour
D. All the above