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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
In a De-Laval nozzle expanding superheated steam from 10 bar to 0.1 bar, the pressure at the minimum cross-section (i. e. pressure at throat, p₂) will be

3.3 bar
8.2 bar
5.46 bar
9.9 bar

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Steam Boilers, Engines, Nozzles and Turbines
The saturation temperature of steam with increase in pressure increases

Rapidly first and then slowly
Slowly first and then rapidly
Inversely
Linearly

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Steam Boilers, Engines, Nozzles and Turbines
In a glass tube type water indicator for a boiler, one end of the tube is connected to water space and the other end is connected to

Steam space
Superheater
Water space also
Chimney

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Steam Boilers, Engines, Nozzles and Turbines
The basic purpose of drum in boiler is to

Remove salts from water
Serve as storage of feed water for water wall
Separate steam from water
Serve as storage of steam

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Steam Boilers, Engines, Nozzles and Turbines
Water tube boilers are

None of these
Internally fired
Externally fired
Internally as well as externally fired

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

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

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