Top 350+ Solved Environmental Engineering MCQ Questions Answer
Q. For portable water the permissible pH value is
a. 11 -- 14
b. 7 - 8.5
c. 4.5 - 7
d. 9 -- 11
e. 1 - 4.5
Q. Which of the following is the major source of environmental pollution in urban areas?
a. Rolling mills
b. Automobiles
c. Electronic industries
d. Power plants
e. Floor mills
Q. Which of the following is considered as the noble gas?
a. None of these
b. Hydrogen
c. Argon
d. Ozone
e. Oxygen
Q. Which of the following is an artificial source of energy?
a. Wood
b. Electricity
c. Sun
d. None of these
e. Coal
Q. The hardness of soft water (in ppm) is
a. 0 - 50
b. 200 - 350
c. 50 - 150
d. 375 - 500
e. 500 - 1000
Q. The process of removal of permanent hardness of water is
a. Filtration process
b. Zeolite process
c. Sedimentation process
d. Lime process
e. Boiling process
Q. Which of the following measures the heat of combustion?
a. Beckmann's thermometer
b. Thermostat
c. Green
d. Refrigerator
e. Bomb's calorimeter
Q. Zeolite is
a. Hydrated calcium silicate
b. A naturally occurring salt
c. Hydread silica
d. Hydrated alumino-silicate
e. Silicon carbide
Q. Which of the following particles will be smallest in size?
a. Smog
b. Drizzle
c. Fog
d. Rain
e. Mist
Q. Thiosulphate is the antidote for the poisonous effect due to
a. Cyanide
b. Lead
c. Organic phosphorous compounds
d. Mercury
e. Arsenic
Q. The presence of algae in water indicates that the water is
a. Hard
b. Acidic
c. Soft
d. Pune
e. Free from turbidity
Q. The maximum permissible turbidity for drinking water
a. 15 - 25 ppm
b. 3 - 50 ppm
c. 30 - 50 ppm
d. 1 - 4 ppm
e. Zero
Q. Per capita consumption of water is usually taken as
a. 750 - 1000 litres
b. 50 - 100 litres
c. 500 - 750 litres
d. 400 - 500 litres
e. 150 - 300 litres
Q. The most injurious components of automobile exhaust for environment are
a. Green
b. Carbon monoxide and Carbon dioxide
c. Carbon monoxide and lead
d. Carbon dioxide and Sulphur dioxide
e. Ethylene dichloride and ethylene dibromide