Steam Boilers, Engines, Nozzles and Turbines
A packaged boiler is one in which various parts like firing equipment, fans, feed pumps and automatic controls are

Supplied by same manufacturer loose and assembled at site
Purchased from several parties and packed together at site
Supplied mounted on a single base
Packaged boiler does not exist

ANSWER DOWNLOAD EXAMIANS APP

Steam Boilers, Engines, Nozzles and Turbines
In recuperative air preheaters, the heat is transferred

Heat is transferred by bleeding some gases from furnace
From a metal wall from one medium to another
By direct mixing
From heating an intermediate material and then heating the air from this material

ANSWER DOWNLOAD EXAMIANS APP