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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
An air preheater is installed

Between the economiser and chimney
Before the economiser
Before the superheater
None of these

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Steam Boilers, Engines, Nozzles and Turbines
With increase in load, radiant superheater has

Rising characteristic
Linear characteristic
Flat characteristic
Drooping characteristic

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Steam Boilers, Engines, Nozzles and Turbines
Sulphur in coal results in

All of these
Corroding air heaters
Facilitating ash precipitation
Spontaneous combustion during coal storage

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Steam Boilers, Engines, Nozzles and Turbines
Water boils when its vapor pressure

Equals that of the surroundings
Equals 760 mm of mercury
Equals the pressure of water in the container
Equals to atmospheric pressure

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Steam Boilers, Engines, Nozzles and Turbines
Expansion ratio is the ratio of

Swept volume to the clearance volume
Clearance volume to the swept volume
Volume at cut-off to the swept volume
Swept volume to the volume at cut-off

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Steam Boilers, Engines, Nozzles and Turbines
A binary vapor plant consists of

Steam turbine
Mercury boiler
All of the listed here
Steam condenser

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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