- (A) nitrogen
- (B) carbon dioxide
- (C) hydrogen sulphide
- (D) methane
Civil Engineering Mcqs
- (A) specific gravity of solid particles
- (B) size of particles
- (C) depth of tank
- (D) temperature of liquid
- (A) TOD>BOD>COD
- (B) TOD>COD>BOD
- (C) BOD>COD>TOD
- (D) COD>BOD>TOD
- (A) 1/3
- (B) 2/3
- (C) 3/4
- (D) 1.0
- (A) 1 ppm
- (B) 4 ppm
- (C) 10 ppm
- (D) 40 ppm
- (A) maximum at noon
- (B) minimum at noon
- (C) maximum at midnight
- (D) same throughout the day
- (A) inlet
- (B) manhole
- (C) drop manhole
- (D) catch basin
- (A) maximum flow only
- (B) minimum flow only
- (C) average flow only
- (D) maximum and minimum flow
- (A) septic conditions
- (B) dissolved oxygen
- (C) chlorine
- (D) nitrogen
- (A) 1 minute
- (B) 5 minutes
- (C) 2-4 hours
- (D) 12 hours
