(a) Chloro-fluoro-carbon refrigerants
(b) Hydrofluorocarbons
Both (A) and (B)
None of these
The ratio of energy transferred by convection to that by radiaton
The ratio of energy transferred by convection to that by conduction
The ratio of energy transferred by conduction to that by radiation
All the above
Galvanizing
Oxidizing
Anit-oxidizing
Carbonization
Carbonation
Carburizing
Carburation
precisely enough for reduction but no oxidation occurs
precisely enough for equal amounts of oxidation and reduction occurs
precisely enough for oxidation but no reduction occurs
precisely enough for burning, and neither oxidation nor reduction occurs