- (A) Septic tanks are horizontal continuous flow type of sedimentation tanks
- (B) Septic tanks are generally provided a detention period of 12 to 36 hours
- (C) Septic tanks are completely covered and high vent shafts are provided for the escape of foul gases
- (D) None of these
Civil Engineering Mcqs
- (A) One pipe
- (B) Two pipes
- (C) Three pipes
- (D) Four pipes
- (A) Carbondioxide
- (B) Oxygen
- (C) Nitrogen
- (D) Sulphur-dioxide
- (A) 2.30 m
- (B) 2.40 m
- (C) 2.45 m
- (D) 2.50 m
- (A) Lung cancer
- (B) Skin cancer
- (C) Bronchitis
- (D) Heart disorder
- (A) Sanitary sewage
- (B) Industrial waste
- (C) Storm sewage
- (D) None of these
- (A) 100
- (B) 1000
- (C) 5000
- (D) 10000
- (A) 0.9 cm
- (B) 1.2 m
- (C) 1.5 m
- (D) > 1.5 m
- (A) Branch sewers
- (B) Main sewers
- (C) Trunk sewers
- (D) All the above
- (A) Centrifugal pump
- (B) Reciprocating pump
- (C) Pneumatic ejector
- (D) None of these
