16,Incomplete oxidation of coal result?,
CO2,
CO,
CH4,
None,
17,The permissible limit of the CO is?,
10 ppm,
50 ppm,
7 ppm
5 ppm,
18,Hopcolite is used to detect ?,
CO,
CO2,
CH4,
SO2,
19,Hopcolite is a mixture of?
Manganeese diaoxide + copper oxide,
Potasium superoxide + copper oxide,
silica gel +potasium pelladiam sulphate,
Iodine pentaxide + sulphuric acid,
Ans
1.2
2.2
3.1
4.1
No comments:
Post a Comment