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
Increases
Decreases
Remains unchanged

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following statement is correct for a compound steam engine?

The cost of the engine, for the same power and economy, is more than that of a simple steam engine
The ratio of expansion is reduced, thus reducing the length of stroke
The forces in the working parts are increased as the forces are distributed over more parts
The temperature range per cylinder is increased, with corresponding increase in condensation

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