to provide an adequate supply of air for the fuel combustion

to exhaust the gases of combustion from the combustion chamber

to discharge the gases of combustion to the atmosphere through the chimney

all of the above

water space also

chimney

steam space

superheater

water passes through the tubes which are surrounded by flames and hot gases

the flames and hot gases pass through the tubes which are surrounded by water

forced circulation takes place

none of these

Locomotive boiler is a water tube boiler.

Water tube boilers are internally fired.

La-mont boiler is a low pressure water tube boiler.

all of the above

Right

Wrong