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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
An economiser is generally placed between

Induced draft fan and forced draft fan
Air preheater and chimney
None of these
Last superheater or reheater and air preheater

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Steam Boilers, Engines, Nozzles and Turbines
The feed check valve is used in order to

Recirculate unwanted feed water
Check level of water in boiler drum
Allow high pressure feed water to flow to drum and not allow reverse flow to take place
Regulate flow of boiler water

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Steam Boilers, Engines, Nozzles and Turbines
The actual power supplied by the engine crankshaft is called

None of these
Frictional power
Brake power
Indicated power

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Steam Boilers, Engines, Nozzles and Turbines
The fire tubes in a Cochran boiler usually have _________ diameter.

72.5 mm
6.25 mm
62.5 mm
92.5 mm

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of total useful heat drop to the total isentropic heat drop, is called

Stage efficiency
None of these
Rankine efficiency
Internal efficiency

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Steam Boilers, Engines, Nozzles and Turbines
Which is not correct statement about the function of furnace?

Mix fuel with air and ignite
Maintain heat supply to prepare and ignite the incoming fuel
Separate ash from coal
To provide proper conditions for continuous complete combustion

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