In forced recirculation type boiler__________________?

• A. heating takes place at bottom and the water supplied at bottom gets converted into the mixture of steam bubbles and hot water which rise to drum
• B. water is supplied in drum and through down-comers located in atmospheric condition it passes to the water wall and rises to drum in the form of mixtur
• C. feed pump is employed to supplement natural circulation in water wall type furnace
• D. water is converted into steam in one pass without any recirculation
• E. heating of water takes place in stages