Multiple Choice Questions on Environmental Engineering | Objective Questions | Environmental Engineering Quiz | MCQ
1 >>The process used for the removal of dissolved carbondioxide from the water, is known as ?
- (A) Coagulation
- (B) Aeration
- (C) Agitation
- (D) Sedimentation
2 >>Ultra-violet rays are used for the treatment of water known as ?
- (A) Dechlorination
- (B) Disinfection
- (C) Aeration
- (D) Filtration
3 >>The method used for the removal of fine suspended particle is ?
- (A) Filtration
- (B) Agitation
- (C) Flotation
- (D) Aeration
4 >>Turbidity in water may be removed by ?
- (A) Sedimentation
- (B) Filtration
- (C) Agitation
- (D) Oxidation
5 >>The permissible level of HCN in drinking water is ?
- (A) Less than 0.01 mg/litre
- (B) Around 5 mg/litre
- (C) More than 50 mg/litre
- (D) Around 1 mg/litre
6 >>The presence of fluorides in drinking water helps in ?
- (A) Purification of water
- (B) Preventing decaying of teeth
- (C) Deodourisation of water
- (D) Reduces fungi formation
7 >>The presence of fluorides in drinking water helps in ?
- (A) Purification of water
- (B) Preventing decaying of teeth
- (C) Deodourisation of water
- (D) Reduces fungi formation
Environmental Engineering Quiz | Environmental Engineering MCQ
8 >>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
9 >>Which of the following is pesticide? ?
- (A) Endrin
- (B) Aldrin & DDT
- (C) Toxaphone
- (D) All of the above
10 >>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
11 >>The bad smell due to decomposition of sewage, on account of the action of bacteria, is mainly due to the presence of ?
- (A) Dead bacteria
- (B) Hydrogen sulphide
- (C) Carbondioxide
- (D) Oxygen
12 >>Which of the following plant is highly sensitive to mercury vapour? ?
- (A) Sunflower
- (B) Ivy
- (C) Aloc
- (D) Cherry
13 >>The anitdote for the poisonous effects due to mercury, is ?
- (A) Vitamin K
- (B) BAL
- (C) Thiosulphate
- (D) Altropine
14 >>Which of the following chemical is least poisonous? ?
- (A) Arsenic
- (B) Lead
- (C) Sodium
- (D) Cyanide
15 >>Thiosulphate is the antidote for the poisonous effect due to ?
- (A) Arsenic
- (B) Lead
- (C) Sodium
- (D) Cyanide
Environmental Engineering Quiz | Environmental Engineering MCQ
16 >>DDT is ?
- (A) An inorganic compound
- (B) A compound of phosphours
- (C) A chlorinated hydrocarbon
- (D) A naturally occurring chemical
17 >>The science of poisons – their effects, antidotes and detection, is known as ?
- (A) Toxicology
- (B) Minerology
- (C) Petrology
- (D) Poisonology
Environmental Engineering Quiz | Environmental Engineering MCQ
18 >>Dust particles in industrial processes may be generated by ?
- (A) Crushing
- (B) Grinding
- (C) Detonation
- (D) Any of the above processes
19 >>Suspended liquid droplets generated by condensation from the gaseous to the liquid state or by breaking up a liquid into a dispersed state is known as ?
- (A) Dust
- (B) Fume
- (C) Mist
- (D) Vapours
20 >>Acute poisoning may be the result of entry into the body of large of concentrated doses of poison through ?
- (A) Breathing
- (B) Swalowing
- (C) Skin absorption
- (D) Any of the above
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