A. air relief valve
B. reflux valve
C. pressure relief valve
D. sluice valve
Related Mcqs:
- The type of valve which is provided to control the flow of water in the distribution system at street corners and where the pipe lines intersect is_______________?
A. check valve
B. sluice valve
C. safety valve
D. scour valve - The type of valve which allows water to flow in one direction but prevents its flow in the reverse direction is____________________?
A. reflux valve
B. sluice valve
C. air relief valve
D. pressure relief valve - The maximum discharge of a tube-well is about_________________?
A. 5 litres/sec
B. 50 litres/sec
C. 500 litres/sec
D. 1000 litres/see - A pipe conveying sewage from plumbing system of a single building to common sewer or point of immediate disposal is called________________?
A. house sewer
B. lateral sewer
C. main sewer
D. submain sewer - The pipe which is used to carry the discharge from sanitary fittings like bath rooms, kitchens etc. is called_______________?
A. waste pipe
B. soil pipe
C. vent pipe
D. antisiphonage pipe - A pipe which is installed in the house drainage to preserve the water seal of traps is called______________?
A. vent pipe
B. antisiphonage pipe
C. waste pipe
D. soil pipe - Which of the following methods of analysis of water distribution system is most suitable for long and narrow pipe system ?
A. circle method
B. equivalent pipe method
C. Hardy cross method
D. electrical analysis method - Scour valves are provided ______________?
A. at street corners to control the flow of water
B. at every depression and dead ends to drain out the waste water that may collect there
C. at the foot of rising main along the slope to prevent back running of water
D. at every summit of rising mains - The type of sewer which is suitable for both combined and separate system is_____________?
A. circular sewer
B. egg shaped sewer
C. horse-shoe type sewer
D. semi-elliptical sewer - The rate of Alteration of pressure filters is_________________?
A. less than that of slow sand filters
B. in between the filtration rate of slow sand filters and rapid sand filters
C. greater than that of rapid sand filters
D. equal to that of slow sand filters
