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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Which of the following is a water tube boiler?

Cochran boiler
Locomotive boiler
Lancashire boiler
Babcock and Wilcox boiler

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Steam Boilers, Engines, Nozzles and Turbines
Reheating of steam under ideal conditions takes place at constant

Entropy
Temperature
Pressure
Enthalpy

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Steam Boilers, Engines, Nozzles and Turbines
The maximum efficiency of a De-Laval turbine is (where α = Nozzle angle)

cos²α
sin²α
tan²α
cot²α

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Steam Boilers, Engines, Nozzles and Turbines
The pressure of feed water has to be raised before its entry into the boiler. The pressure is raised by a device known as

Injector
Feed check valve
Pressure gauge
Feed pump

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Steam Boilers, Engines, Nozzles and Turbines
The ratio of heat utilized to produce steam and the heat liberated in furnace is known as

Boiler evaporative capacity
Factor of evaporation
Boiler efficiency
Boiler effectiveness

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Steam Boilers, Engines, Nozzles and Turbines
An impulse turbine as compared to a reaction turbine, for a given power has _________ row of blades.

More
Less
None of these
Equal

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