Environmental Engineering MCQs with answers for Civil Engineering students’ test preparation. Includes Environmental Engineering MCQs PDF.
Which of the following radiations of the sun do greenhouse gases trap ?
A. Visible radiations
B. Infrared radiations
C. UV radiations
D. All the radiationsExplanation: Greenhouse gases trap the infrared radiations from the sun and reflect it back to the Earth’s surface thereby heating up the planet.
Which of the following type of pollution is Cultural eutrophication ?
A. Thermal pollution
B. Soil pollution
C. Water pollution
D. Noise pollutionWhich of the following water treatment process is done after filtration of water ?
A. Primary sedimentation
B. Disinfection
C. Secondary sedimentation
D. FlocculationWhich of the following is biodegradable waste ?
A. Food waste
B. Synthetic fiber
C. Paper
D. Polythene bagsWhich of the mentioned devices are used for removing vapour phase/gaseous pollutants ?
A. Absorption towers
B. Catalytic converters
C. Thermal oxidisers
D. All of the mentionedIn which of the following process earthworms decompose biodegradable solid waste ?
A. Vermi-composting
B. Shredding
C. Composting
D. Land fillsWhich of the following is not commonly used as a filter material in the treatment of water ?
A. Crushed rock
B. Anthracite
C. Garnet sand
D. SandWhich of the following plants is extremely sensitive towards sulphur dioxide ?
A. Corn
B. Tomato
C. Onion
D. PotatoWhich of the following gas is released when alum is added to water ?
A. Al (OH)3
B. CaSO4
C. CO2
D. Ca (OH)3Explanation: Carbon dioxide gas is released when alum is added to water, which is corrosive to metals.
Which of the following gas is not colorless ?
A. O3
B. NO
C. SO3
D. PbExplanation: NO is a highly reactive gas which is reddish brown in color, whereas O3, Pb and SO3 are colorless gas.