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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The friction in the nozzle __________ exit velocity of steam.

Increases
Decreases
Has no effect on
None of these

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Steam Boilers, Engines, Nozzles and Turbines
The dry saturated steam at very low pressure, (510 kg/cm²) when throttled to atmosphere will become

Dry
Superheated
Remain dry saturated
Wet

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Steam Boilers, Engines, Nozzles and Turbines
Lancashire boiler is of

Natural circulation type
Horizontal type
Stationary < fire tube type
All of the listed here

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Steam Boilers, Engines, Nozzles and Turbines
Reheating of steam under ideal conditions takes place at constant

Pressure
Entropy
Enthalpy
Temperature

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

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

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

Regulate flow of boiler 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
Recirculate unwanted feed water

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