Steam Boilers, Engines, Nozzles and Turbines
The difference between Cornish boiler and Lancashire boiler is that

Former contains one fire tube and latter contains two fire tubes
Former is fire tube type and latter is water tube type boiler
None of the listed here
Former is water tube type and latter is fire tube type

ANSWER DOWNLOAD EXAMIANS APP

Steam Boilers, Engines, Nozzles and Turbines
In water tube boilers

Forced circulation takes place
None of these
The flames and hot gases pass through the tubes which are surrounded by water
Water passes through the tubes which are surrounded by flames and hot gases

ANSWER DOWNLOAD EXAMIANS APP