6251Chemical EngineeringMedium
Maximum permissible concentration (i.e. TLV) of DDT in public water supply system is ________ micro gram (μ g)/litre?
A332
B42
C1050
D22
Correct answer
B. 42
Explanation
The correct answer is 42.
Correct answer
B. 42
Explanation
The correct answer is 42.
As per international norms, the maximum permissible value of noise level in the industrial environment is ________ decibels as measured at a distance of 1.5 meters from the source of noise?
Most common stainless steel type 316, which is highly resistant to corrosion contains________?
During nitric acid manufacture, catalytic oxidation of ammonia at 800°C in presence of platinum catalyst produces nitrogen oxide. Conversion of NH3 to NO is about ________ percent?
________ columns are used for liquid dispersion in a continuous gas phase?
Among liquids, water has a comparatively high value of thermal conductivity, due to its________?
Maximum consumption of polymers is in________?