Category: Environmental Engineering Mcqs

A.Water is filtered
B.Water is boiled
C.Alum is added to water
D.Lime is added to water
E.Chlorine is passed through water

A.1 to 50 ppm
B.50 to 100 ppm
C.100 to 250 ppm
D.250 to 500 ppm
E.500 to 1000 ppm

A.acidic
B.alkaline
C.neutral
D.free from oxygen

A.beta rays
B.X-rays
C.gamma rays
D.All of the above

A.Hydrogen
B.Nitrogen
C.Inorganic matter
D.Manganese

A.144 m/s
B.344 m/s
C.1344 m/s
D.3344 m/s

A.Bronchial asthma
B.Chronic bronchitis
C.Emphysema
D.All of the above

A.Aldrin
B.Endrin
C.Chloroform
D.BHC

A.Sun
B.Coal
C.Wood
D.Electricity

A.250 ppm
B.200 ppm
C.100 ppm
D.50 ppm
E.zero ppm