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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The latent heat of steam at pressures greater than atmospheric in comparison to latent heat at atmospheric pressure is

More
Equal
May be less or more depending on temperature
Less

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Steam Boilers, Engines, Nozzles and Turbines
The high pressure boiler is one, which produces steam at a pressure more than

7580 kg/cm²
10 kg/cm²
Atmospheric pressure
5 kg/cm²

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Steam Boilers, Engines, Nozzles and Turbines
An economiser in a boiler

Increases steam flow
Increases steam pressure
Decreases fuel consumption
Decreases steam pressure

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Steam Boilers, Engines, Nozzles and Turbines
The length of Lancashire boiler varies from

6 to 7 m
7.25 to 9 m
9 to 10 m
5 to 6 m

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Steam Boilers, Engines, Nozzles and Turbines
When the speed of the engine is controlled by means of a valve in a steam pipe, which regulates the pressure of steam entering the engine, then the governing is known as

Throttle governing
Cut-off governing
None of these
By-pass governing

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Steam Boilers, Engines, Nozzles and Turbines
In a Woolf type compound engine, the high pressure and low pressure cylinders

Are set at 90°
Have separate piston rod
Are set in V arrangement
Have common piston rod

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