Environmental Engineering In Ce - Practice Test

(A) By reaction of hydrocarbon & nitric oxide in presence of sunlight

(B) Appears only on sunny days

(C) Is harmful for crops and trees also besides causing eye irritation & asthma

(D) All of the above

(D) All of the above

(A) Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds

(B) Use micro-organisms/bacteria in presence of dissolved oxygen

(C) Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre

(D) All of the above

(D) All of the above

(A) Lagooning

(B) Activated carbon adsorption

(C) Biological oxidation pond

(D) Chemical coagulation

(B) Activated carbon adsorption

(A) Aerobic

(B) Pathogenic

(C) Anaerobic

(D) Non-pathogenic

(B) Pathogenic

(A) Iron

(B) Zinc

(C) Iodine

(D) Bromine

(A) Iron

Environmental Engineering In Ce - Study Mode