Steam Boilers, Engines, Nozzles and Turbines
The size of a boiler drum in pulverized fuel fired boiler, as its size and capacity, (steam pressure and flow ratings) increase

Increases/decreases depending on steam temperature requirements
Decreases
Increases
Remains unchanged

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

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