Steam Boilers, Engines, Nozzles and Turbines
Locomotive boiler is a

Single tube, horizontal, internally fired and stationary boiler
Multi-tubular, horizontal, externally fired and stationary boiler
Multi-tubular, horizontal, internally fired and mobile boiler
Single tube, vertical, externally fired and stationary boiler

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Steam Boilers, Engines, Nozzles and Turbines
The equivalent evaporation of a boiler is a measure to compare

Two different makes of boilers operating under the same operating conditions
The given boiler with the model
The two different boilers of the same make
Any type of boilers operating under any conditions

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

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

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Steam Boilers, Engines, Nozzles and Turbines
For water, at pressures below atmospheric;

Melting point drops slightly and boiling point drops markedly
Melting point drops slightly and boiling point drops slightly
Melting point rises markedly and boiling point drops markedly
Melting point rises slightly and boiling point drops markedly

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