A.1 to 2 percent
B.5 to 12 percent
C.20 to 25 percent
D.75 to 125 percent
Related Mcqs:
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- With in the range of _______ of oxygen in the flue gas the combustion has enough excess air to minimize incomplete combustion and not to much excess air to cause excessive dry-gas or stack loss
- If the life of high speed steel tools is taken as 100% the life of cemented carbide tools will be
- High carbon steels intended to be quenched in water should have manganese percentage less than
- The approximate annual rate of growth of population in India is
- The percentage of carbondioxide in atmospheric air is nearly