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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Adiabatic process is

Reversible process
Non-heat transfer process
Constant temperature process
Essentially an isentropic process

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following boilers is best suited to meet fluctuating demands?

Locomotive
Cochran
Babcock and Wilcox
Lancashire

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Steam Boilers, Engines, Nozzles and Turbines
A compound steam engine in which piston rods of high pressure and low pressure cylinders ' are attached to two different cranks set at 180° to each other, is called

Receiver type compound engine
Woolf type compound engine
Tandem type compound engine
Both (A) and (B)

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Steam Boilers, Engines, Nozzles and Turbines
The basic purpose of drum in boiler is to

Separate steam from water
Serve as storage of steam
Remove salts from water
Serve as storage of feed water for water wall

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Steam Boilers, Engines, Nozzles and Turbines
Thermal equilibrium means that the flow of steam is

Hyperbolic
Isothermal
Polytropic
Isentropic

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Steam Boilers, Engines, Nozzles and Turbines
Secondary air is the air used to

Transport and dry the coal
Air delivered by induced draft fan
Provide air around burners for obtaining optimum combustion
Convert CO (formed in lower zone of furnace) into CO₂ at higher zone

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