A. About 78 percent
B. About 21 percent
C. Close to 10 percent
D. Less than 4 percent
E. None of these
Related Mcqs:
- The percentage of water vapour present in the air compared to that required for saturation is the __________?
- High carbon steels intended to be quenched in water should have manganese percentage less than
- In a volume of air near the earth’s surface, _____________ occupies 78 percent and ____________ nearly 21 percent.
- The angle in minute subtended by sun on the earths surface is about
- The percentage of carbondioxide in atmospheric air is nearly
- Permissible percentage of moisture in dry woods for pattern making is
- The percentage of nitrogen in air by weight is around
- Carbon percentage in steel for carburizing is usually
- In tool steel the percentage of silicon is usually restricted to
- Chromium percentage in cutlery stainless steel is
