Top 350+ Solved Environmental Engineering MCQ Questions Answer
Q. The process of passing the water through a thick layer of filtering media is known as
a. Sedimentation
b. Filtration
c. Disinfection
d. Purification
e. Putrification
Q. Which of the following is an insect born disease?
a. Q-fever
b. Ring worm
c. Jaundice
d. Tetanus
e. None of the above
Q. In case of public supplies, the maximum permissible nitrite content is
a. 250 ppm
b. 200 ppm
c. 100 ppm
d. 50 ppm
e. zero ppm
Q. All of the following are pesticides EXCEPT
a. Aldrin
b. Endrin
c. Chloroform
d. BHC
e. None of the above
Q. The presence of which of the following material in water is not considered to be dangerous?
a. Lead
b. Copper
c. Mercury
d. Calcium
e. Zinc
Q. The desirable temperature of portable water is
a. zero degree centigrade
b. 10?C
c. 20?C
d. 27?C
e. 37?C
Q. Turbidity of water is usually measured in terms of
a. Platinum scale
b. Cobalt scale
c. Silica scale
d. Calcium scale
e. Sodium scale
Q. Black holes are celestial bodies which
a. Are self luminous bodies
b. Do not allow any light to escape outside
c. Green
d. Have strong electrical field
e. Have strong magentic field
Q. Which of the following is used in the recently developed technology for communication?
a. Optical fibre
b. Glass fibre
c. Quartz fibre
d. None of these
e. Nylon fibre
Q. Disinfection of water is done by
a. Alum
b. Filtration
c. Heating and cooling
d. Ozone
e. Passing chlorine
Q. The maximum concentration of lead in drinking water should not exceed.
a. 0.5 mg/litre
b. 0.0005 mg/litre
c. 5 mg/litre
d. 0.005 mg/litre
e. 0.05 mg/litre
Q. In power plant an electrostatic precipitators is installed between
a. Furnace and chimney
b. Induced draft fan and forced draft fan
c. Forced draft fan and furnace
d. Primary air and secondary air
e. Air preheater and water treatment plant
Q. The aeration of water is done for the removal of
a. Odour
b. Turbidity
c. Hardness
d. Colour
e. Bacteria
Q. The method used for the removal of fine suspended particle is
a. Flotation
b. Screening
c. Filtration
d. Agitation
e. Aeration
Q. Which of the following industry will usually have the highest concumption of water for processing?
a. Foundry
b. Aluminium industry
c. Automobile industry
d. Steel plant
e. Paper mill