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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Which of the following substance will have same percentage in both proximate and ultimate analysis?

Volatile matter
Hydrogen
Moisture
Ash

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Steam Boilers, Engines, Nozzles and Turbines
The variation of steam pressure in the nozzle depends upon

Velocity of steam
All of these
Specific volume of steam
Dryness fraction of steam

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Steam Boilers, Engines, Nozzles and Turbines
During storage, the heating value of coal

May increase or decrease depending upon the method of storage
Remain constant
Decreases
Increases

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Steam Boilers, Engines, Nozzles and Turbines
A condenser where circulating water flows through tubes which are surrounded by steam, in known as

Evaporative condenser
Barometric condenser
Surface condenser
Jet condenser

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Steam Boilers, Engines, Nozzles and Turbines
When the circulation of water, in a boiler, is by a centrifugal pump, then the boiler is known as

Natural circulation boiler
Forced circulation boiler
Externally fired boiler
Internally fired boiler

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Steam Boilers, Engines, Nozzles and Turbines
The steam enters the nozzle at a

High pressure and a low velocity
Low pressure and a low velocity
Low pressure and a high velocity
High pressure and a high velocity

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