3118Chemical EngineeringMedium
TLV of mercury in potable (drinking) water is about ________ ppm?
A0.1
B0.001
C1
D5
Correct answer
B. 0.001
Explanation
The correct answer is 0.001.
Correct answer
B. 0.001
Explanation
The correct answer is 0.001.
While the total emissivity of a perfect black body is unity, the same for a real body is________?
In a furnace employing forced draught as compared to induced draught________?
Sodium carbonate (soda ash) is not used in the manufacture of________?
The main reducing agent in iron blast furnace is________?
Which of the following has the highest density and the lowest melting point?
Polyvinyl alcohol is used as a________?