7842Chemical EngineeringMedium
TLV of ammonia, nitrogen dioxide and phenol vapor in air is ________ ppm?
A5
B1000
C100
D2000
Correct answer
A. 5
Explanation
The correct answer is 5.
Correct answer
A. 5
Explanation
The correct answer is 5.
Addition of ________ to steel does not impart hardness?
Gross & net calorific value is the same for________?
Large tonnage of refractory bricks are dried in a________?
Mass flow of granular solid (M) through a circular opening of dia, D follows________?
________ tray arrangement is recommended for distillation column having diameter upto 4 ft?
The unit of filter medium resistance is________?