Bleaching of paper pulp is done with________?
Correct answer
D. Chlorine or chlorine dioxide
Explanation
The correct answer is Chlorine or chlorine dioxide.
Correct answer
D. Chlorine or chlorine dioxide
Explanation
The correct answer is Chlorine or chlorine dioxide.
The equation Tds = dE – PdV applies to________?
Carbon percentage is the same in cast iron and________?
Crushing of mineral particles is accomplished in a ‘cage mill’, when one or more alloy steel bars are revolved in opposite directions. It is a type of ________ mill?
‘Safe limit’ called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the________?
Sphericity is the ratio of the surface area of a spherical particle having the same volume as the particle to the surface area of the particle. Which of the following has the maximum value of sphericity?
Spalling tendency of refractories is reduced by increasing its________?