1027Civil EngineeringMedium
A well oxidized sewage contains nitrogen mainly as________?
AFree ammonia
BNitrites
CNitrates
DNone of these
Correct answer
C. Nitrates
Explanation
The correct answer is Nitrates.
Correct answer
C. Nitrates
Explanation
The correct answer is Nitrates.
If the group index value of subgrade is between 5 and 9, then the subgrade is treated as________?
The wake________?
On a single rail track, goods trains loaded with heavy iron material run starting from A to B and then empty wagons run from B to A. The amount of creep in the rails________?
A drop manhole is provided if________?
If the diameter of sewer is 225 mm, the gradient required for generating self cleansing velocity, is________?
If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21°C, B.O.D. of the sewage is________?