Internal furnaces are
a) mostly used to superheat the steam
b) contained within the windbox of a boiler
c) used to increase the strength of the drum
d) used for oil firing only
e) contained within the shell of the boiler
Answer: E
Internal furnaces are
a) mostly used to superheat the steam
b) contained within the windbox of a boiler
c) used to increase the strength of the drum
d) used for oil firing only
e) contained within the shell of the boiler