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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Which of the following varieties of coals is mostly used in steam boilers?

Non-coking bituminous coal
None of the listed here
Peat
Brown coal

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Steam Boilers, Engines, Nozzles and Turbines
For maximum discharge through a chimney, the condition is that height of hot gas column producing the draught should be

One-half the height of chimney
Two times the height of chimney
Four times the height of chimney
Equal to the height of chimney

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Steam Boilers, Engines, Nozzles and Turbines
The process of maintaining the speed of the turbine constant for various load conditions, is known as

None of these
Bleeding
Governing
Reheating

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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

Rankine efficiency
Stage efficiency
Internal efficiency
None of these

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Steam Boilers, Engines, Nozzles and Turbines
Blading efficiency is also known as

Stage efficiency
Nozzle efficiency
None of these
Diagram efficiency

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Steam Boilers, Engines, Nozzles and Turbines
In which of the following boilers, the draught in furnace is increased by utilising exhaust steam from engine

Babcock and Wilcox boiler
Locomotive boiler
Lancashire boiler
Benson boiler

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