A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true
Related Mcqs:
- Assertion A: Slow sand filters are more efficient in removal of bacteria than rapid sand filters. Reason R : The sand used in slow sand filters is finer than that in rapid sand filters. Select your answer based on the coding system given below?
A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true - Which of the following causes a decrease in per capita consumption ?
A. use of metering system
B. good quality of water
C. better standard of living of the people
D. hotter climate - The water carriage system of collection of waste product________________?
A. is cheaper in initial cost than dry conservancy system
B. requires treatment before disposal
C. creates hygenic problem
D. all of the above - Average rate of water consumption perhead per day as per Indian Standard is______________?
A. 100 litres
B. 135 litres
C. 165 litres
D. 200 litres - As compared to geometrical increase method of forecasting population, arithmetical increase method gives________________?
A. lesser value
B. higher value
C. same value
D. accurate value - The amount of coagulant needed for coagulation of water increases with_______________?
1) increase in turbidity of water
2) decrease in turbidity of water
3) increase in temperature of water
4) decrease in temperature of water
The correct answer is?A. (1) and (2)
B. (1)and (4)
C. (2) and (3)
D. (2) and (4) - 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 - 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 - The layout of distribution system in which water flows towards the outer periphery is_________________?
A. ring system
B. dead end system
C. radial system
D. grid iron system - The per capital consumption of a locality is affected by_________________?
1) climatic conditions
2) quality of water
3) distribution pressure
The correct answer is?A. only (1)
B. both (1) and (2)
C. both (1) and (3)
D. all (1), (2) and (3)
