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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The rate of discharge through the nozzle ___ when the exit pressure is gradually reduced.

None of the listed here
Increases
Decreases
Remains same

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Steam Boilers, Engines, Nozzles and Turbines
The rate of steam produced in Benson boiler is

100 tonnes/h
250 tonnes/h
135 tonnes/h
175 tonnes/h

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Steam Boilers, Engines, Nozzles and Turbines
The fire tubes in, a Coarran and Scottish marine boiler are

Vertical
Both horizontal and vertical
Horizontal
Inclined

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Steam Boilers, Engines, Nozzles and Turbines
Presence of moisture in fuel oil would

Aid in proper combustion
Because sputtering, possibly extinguishing flame
Clean the nozzles
Keep the burner tips cool

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Steam Boilers, Engines, Nozzles and Turbines
Evaporative capacity of boiler is expressed as

kg of steam produced
kg of steam produced per kg of fuel fifed
Steam pressure produced
kg of fuel fired

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Steam Boilers, Engines, Nozzles and Turbines
Maximum energy loss in a boiler occurs due to

Flue gases
Ash content
Unburnt carbon in ash
Incomplete combustion

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