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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
A vessel into which the steam is exhausted and condensed after doing work in an engine cylinder or turbine is known as

Steam boiler
Economiser
Steam condenser
Steam preheater

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Steam Boilers, Engines, Nozzles and Turbines
In a steam condenser, the partial pressure of steam and air are 0.06 bar and 0.007 bar respectively. The condenser pressure is

0.053 bar
0.06 bar
0.067 bar
0.007 bar

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Steam Boilers, Engines, Nozzles and Turbines
For the same diameter and thickness of tube, a water tube boiler compared to a fire tube boiler has

Equal heating surface
Heating surface depends on other parameters
More heating surface
Less heating surface

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Steam Boilers, Engines, Nozzles and Turbines
The process of maintaining the speed of the turbine constant for various load conditions, is known as

None of these
Reheating
Bleeding
Governing

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Steam Boilers, Engines, Nozzles and Turbines
It is required to produce large amount of steam at low pressure. Which boiler should be used?

Babcock and Wilcox boiler
Lancashire boiler
Pulverized fuel fired boiler
Cochran boiler

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Steam Boilers, Engines, Nozzles and Turbines
When the cross-section of a nozzle __________ continuously from entrance to exit, it is called a convergent nozzle.

Increases
Decreases
Remain same
None of these

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