Civil Engineering Questions And Answers :: Environmental Engineering: part3



Civil Engineering : Environmental Engineering QUESTIONS AND ANSWERS :: part3 : 21 to 25

Following Civil Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

21.Which of the following compounds is widely used for algae control ?

sodium sulphate
copper sulphate
sodium chloride
calcium chloride

22.The commonly used material for water supply pipes, which has the properties of being strong, not easily corroded and long life but is heavy and brittle is

steel
cast iron
copper
reinforced cement concrete

23.Double filtration is used

to increase the filtration slow sand filters capacity of
to increase the filtration rapid sand filters capacity of
for isolated buildings like pools, hotels etc swimming
all of the above

24.In lime-soda process

only carbonate hardness is removed
only non-carbonate hardness is re-moved
lime reduces the carbonate hardness and soda-ash removes the non-carbo�nate hardness
lime reduces the non-carbonate hard-ness and soda-ash removes the carbo�nate hardness

More Environmental Engineering QUESTIONS AND ANSWERS available in next pages

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