Top 350+ Solved Environmental Engineering MCQ Questions Answer
Q. DDT is
a. An inorganic compound
b. A compound of phosphours
c. A chlorinated hydrocarbon
d. A naturally occurring chemical
e. None of the above
Q. Term REM is used for
a. solar radiation
b. flame photography
c. radiation exposure
d. none of the above
e. None of the above
Q. While comparing tungsten filament lamps with fluorescent tubes, all of the following are the advantages in favour of tungsten filament lamp EXCEPT
a. Longer life
b. Low cost
c. More brightness
d. Simple installation
e. None of the above
Q. Odours are generally expressed in terms of
a. Hardness number
b. Gravity number
c. Index number
d. Threshold number
e. None of the above
Q. Disinfection of water is done by
a. Filtration
b. Alum
c. Ozone
d. Heating and cooling
e. Passing chlorine
Q. Which of the following is/are renewable sources of energy?
a. Fall or flow of water
b. Sun
c. Wood
d. All of the above
e. Green
Q. The maximum concentration of lead in drinking water should not exceed.
a. 0.0005 mg/litre
b. 0.005 mg/litre
c. 0.05 mg/litre
d. 0.5 mg/litre
e. 5 mg/litre
Q. Ash content of a diesel fuel should not exceed
a. 10%
b. 1%
c. 0.50%
d. 0.01%
e. None of the above
Q. In power plant an electrostatic precipitators is installed between
a. Forced draft fan and furnace
b. Furnace and chimney
c. Primary air and secondary air
d. Induced draft fan and forced draft fan
e. Air preheater and water treatment plant
Q. Which emission has generally least proportion from a diesel engine as compared to a petrol engine?
a. Oxides of nitrogen
b. Hydrocarbons
c. Carbon monoxide
d. All of the above
e. None of the above
Q. Which of the following turbidimeter gives direct readings in ppm
a. Jackson turbidimeter
b. Hellige turbidimeter
c. Baylis turbidimeter
d. All of the above
e. None of the above
Q. Which of the following gas can be analysed by chemiluminescence?
a. Ozone
b. Carbon dioxide
c. Nitrogen
d. All of the above
e. None of the above
Q. Permissible noise level in small conference room is
a. 10 to 15 dB
b. 15 to 25 dB
c. 35 to 40 dB
d. 55 to 60 dB
e. None of the above
Q. The aeration of water is done for the removal of
a. Colour
b. Turbidity
c. Bacteria
d. Odour
e. Hardness
Q. The method used for the removal of fine suspended particle is
a. Filtration
b. Agitation
c. Flotation
d. Aeration
e. Screening