Top 350+ Solved Environmental Engineering MCQ Questions Answer
Q. The speed of sound through water is nearly
a. 344 m/s
b. 750 m/s
c. 1500 m/s
d. 3000 m/s
e. None of the above
Q. Protection from radiations is possible through
a. shielding of source of radiation
b. increased distance from the source of radiation
c. limitation on time of exposure
d. All of the above
e. None of the above
Q. Short circuit means
a. Direct flow of current between two points of different potential
b. Indirect flow of current between two points
c. Direct flow of current between points of the same potential
d. none of the above
e. Green
Q. Swimming pool water requires
a. pre-chlorination
b. super-chlorination
c. dual-chlorination
d. de-chlorination
e. None of the above
Q. Mycotoxins are poisonous chemicals produced by
a. bacteria
b. virus
c. molds
d. algae
e. None of the above
Q. The maximum permissible level or pesticides, in general, in drinking water is nearly
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
Q. The percentage of carbondioxide in atmospheric air is nearly
a. 3.2 percent
b. 0.32 percent
c. 0.032 percent
d. 0.0032 percent
e. None of the above
Q. Turbidity in water is due to
a. Algae
b. Fungi
c. Organic salts
d. Finely divided particles of clay, silt and organic matter
e. None of the above
Q. The emission of oxides of nitrogen in automobile exhaust will be least when the vehicle is
a. Idling
b. Cruising at low speed
c. Cruising at high speed
d. Accelerating
e. Decelerating
Q. Mottling of teeth is associated with the presence of
a. Chloride in water
b. Calcium in water
c. Sodium chloride in water
d. Sulphur in water
e. Fluorides in water
Q. The average percentage of carbon and hydrogen in petrol may be roughly given as
a. 50% C, 50% H2
b. 85% C, 15% H2
c. 15% C, 85% H2
d. 70% C, 30% H2
e. None of the above
Q. Sulphurdioxide can be measured by
a. ultraviolet pulsed fluorescence
b. flame photography
c. permeation tube calibratio
d. Any of the above
e. None of the above
Q. Brackish taste of water is due to
a. Chlorides of sodium
b. Fluorides of sodium
c. Turbidity
d. Dead bacteria
e. Any of the above
Q. Which of the following is unlikely to be the pollutant from a sulphuric acid plant?
a. Sulphur dioxide
b. Sulphur trioxide
c. Acid moist
d. Hydrogen sulphide
e. None of the above
Q. Which of the following is the major source of flyash emission?
a. Sintering plants
b. Oil refineries
c. Blast furnace
d. Power plants
e. Sulphuric acid plant