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

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Steam Boilers, Engines, Nozzles and Turbines
A regenerative steam cycle renders

Decreased work output per unit mass of steam as well as increased thermal efficiency
Decreased work output per unit mass of steam
Increased thermal efficiency
Increased work output per unit mass of steam

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Steam Boilers, Engines, Nozzles and Turbines
Which is not the correct statement about moisture in coal?

Some moisture in coal helps in better burning which is not possible with completely dry coal
In some coals moisture may be present up to 40%
It increases thermal efficiency
Inherent moisture and surface moisture are different things

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