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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The factor of evaporation for all boilers is always

None of these
Equal to unity
Greater than unity
Less than unity

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Steam Boilers, Engines, Nozzles and Turbines
In turbines, the fluid undergoes a continuous steady flow process and the speed of flow is

Very high
Very low
High
Low

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the energy required to produce the artificial draught (expressed in meters head or J/kg of flue gas) to the mechanical equivalent of extra heat carried away per kg of flue gases due to natural draught, is known as

Power of the boiler
Efficiency of the fan
Efficiency of the chimney
Efficiency of the boiler

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Steam Boilers, Engines, Nozzles and Turbines
Throttle governing of steam engines is a method of controlling the engine output by varying

Pressure of intake steam
Volume of intake steam
All of these
Temperature of intake steam

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of the actual vacuum to the ideal vacuum in a condenser is called

Vacuum efficiency
Nozzle efficiency
Boiler efficiency
Condenser efficiency

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Steam Boilers, Engines, Nozzles and Turbines
A boiler in India should conform to safety regulations of

ASTM
BS
DIN
IBR

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