单项选择题
A.oxygen in the water B.poor boiler design C.density too high D.excessive steam demand
Too much air in the furnace of an oil-fired boiler woul...
单项选择题Too much air in the furnace of an oil-fired boiler would be indicated by （）.
A.yellowish flame B.golden yellow flame C.white flame D.brilliant white flame
The feed water to the boiler will comprise （）.A.condens...
单项选择题The feed water to the boiler will comprise （）.
A.condensate B.a small amount of make-up feed C.A and B D.None of the above
Proper combustion in a boiler would be indicated by （）....
单项选择题Proper combustion in a boiler would be indicated by （）.
