Top 350+ Solved Environmental Engineering MCQ Questions Answer
Q. Which pollutants result from automobile exhaust?
a. Carbon monoxide
b. Nitrous oxide
c. Hydrocarbons
d. Sulphur dioxide
e. All of the above
Q. The flouride content in the drinking water should not exceed
a. 200 mg/litre
b. 150 mg/litre
c. 100 mg/litre50 mg/litre
d. 50 mg/litre
e. 1 mg/litre
Q. How many kg of air will contain one kg of oxygen?
a. 1 kg
b. 4.35 kg
c. 8.70 kg
d. 12.5 kg
e. None of the above
Q. The bactericidal, virucidal and cysticidal efficiency of chlorine as a disinfectant
a. increases with a decrease in pH
b. increases with a increase in pH
c. decreases with a decrease in pH
d. decreases with an increase in pH
e. None of the above
Q. The air consumption of a four stroke diesel engine per rated BHP per hour will be
a. 1 kg
b. 5 to 7 kg
c. 10 to 14 kg
d. 20 kg
e. None of the above
Q. The discharge of hydrocarbons from automobile exhaust is maximum when the vehicle is
a. Idling
b. Cruising at low speeds
c. Accelerating
d. Decelerating
e. Cruising at high speeds
Q. The term BOD is associated with pollution arising out of
a. air
b. water
c. noise
d. land
e. None of the above
Q. Lead poisoning occurs when the lead content in water is
a. 300 - 500 ppm
b. 30 - 50 ppm
c. 10 - 15 ppm
d. 3 - 5 ppm
e. 0.3 - 0.5 ppm
Q. Which of the following does not use ambient air for propulsion?
a. Turbo jet
b. Pulse jet
c. Turbo-prop
d. Rocket
e. None of the above
Q. Which of the following units measures the memory of the Computer?
a. Volts
b. Amperes
c. Ohms
d. Bits
e. None of these
Q. A hard water may contain
a. Calcium carbonate
b. Magnesium sulphate
c. Magnesium bicarbonate
d. Any of the above
e. None of the above
Q. Which of the following operation produces highest noise level?
a. welding
b. Riveting
c. Machining
d. Pressing
e. None of the above
Q. Water gas is a mixture of
a. CO and H2
b. N2 and H2
c. CO2 and N2
d. SO2, CO2 and N2
e. None of the above
Q. Which of the following gas has least proportion in atmospheric air?
a. Argon
b. Carbondioxide
c. Neon
d. Helium
e. None of the above
Q. Which of the following symptom is not common between food poisoning and carbon monoxide poisoning?
a. Nausea
b. Vomiting
c. Headache
d. All of the above
e. None of the above