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

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Steam Boilers, Engines, Nozzles and Turbines
A nozzle is said to be a convergent nozzle

None of these
When the cross-section of the nozzle decreases continuously from entrance to exit
When the cross-section of the nozzle increases continuously from entrance to exit
When the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit

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