The irrigation water contains CO2ZHCO3, Ca++ and Mg++ ion 1, 4, 2.5 & 1.5. Calculatethe RSC (residual sodium carbonate) in irrigation water (mcl-1).
RSC= (CO3- + H2CO3)- (Ca2+ + Mg2=)
RSC+ (1+4)-(2.5+1.5)=(5-4)= 1
A 160 m long train crosses another 320 m long train running in the opposite direction in 12 seconds. If the shorter train crosses a pole in 16 seconds, ...
Train A running with a sped of 90 km/h crosses a vertical pole in 12 seconds. Speed of train A is 5 m/s less than speed of train B, and length of train ...
Train B which is ‘d’ meter long can cross a pole in 35 seconds. Train A can cross a platform of (d+10) meter long in (t+45) seconds. The ratio betwe...
A train crosses a pilar in 20 seconds and a platform of length 300 metres in 25 seconds,then what will the 120% of the length of the train.
800 metres long train crosses a man who is moving in the same direction with a certain speed, in 40 seconds. If the same train can cross a tree in 20 se...
A train approaches a tunnel a PQ. Inside the tunnel a cat located at a point i.e., 7/16 of a distance PQ measured from the entrance P. When the train wh...
Time is taken by two trains running in opposite directions to cross a man standing on the platform in 31 seconds and 19 seconds respectively. It took 24...
Two trains started from stations ‘A’ and ‘B’ at same time and started travelling towards each other at speeds of 60 km/hr and 50 km/hr, respecti...
A train has to cover a distance of 112 km in 14 hours. If it covers half journey in 3/5th time, then the speed of covering the remaining dist...
A train 400 metre long takes 40 sec to cross a man running at a speed of 4 km/hr in the direction same to that of train. What is the speed of the train?
