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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Heating wet steam at constant temperature is heating it at constant

Volume
Enthalpy
Entropy
Pressure

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Steam Boilers, Engines, Nozzles and Turbines
The expansion of steam, as it flows over the blades in reaction turbine, represents

Isentropic process
Free expansion process
Isothermal process
Throttling process

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Steam Boilers, Engines, Nozzles and Turbines
The action of steam in a steam turbine is

Static and dynamic
Neither static nor dynamic
Static
Dynamic

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Steam Boilers, Engines, Nozzles and Turbines
The maximum efficiency of a reaction turbine is

2 sin²α/(1 + sin²α)
(1 + cos²α)/2 cos²α
2 cos²α/(1 + cos²α)
(1 + sin²α)/2 sin²α

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Steam Boilers, Engines, Nozzles and Turbines
When the circulation of water, in a boiler, is by convection currents which are set up during the heating of water, then the boiler is known as

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

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Steam Boilers, Engines, Nozzles and Turbines
The function of injector used in small capacity boilers is to

Pump water, similar to boiler feed pump
Create vacuum
Add make up water in the system
Inject chemical solution in feed pump

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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