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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
By compounding the expansion of steam in two or more cylinders, the ratio of expansion

None of these
Decreases
Does not change
Increases

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Steam Boilers, Engines, Nozzles and Turbines
Steam turbines may be classified according to

All of these
Mode of steam action
Direction of steam flow
Number of stages

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Steam Boilers, Engines, Nozzles and Turbines
Water tube boilers are those in which

Flue gases pass through tubes and water around it
Work is done during adiabatic expansion
Change in enthalpy
Water passes through the tubes and flue gases around it

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Steam Boilers, Engines, Nozzles and Turbines
An ideal regenerative cycle is

Equal to Carnot cycle
Could be anything
More than Carnot cycle
Less than Carnot cycle

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

Convergent-divergent nozzle
Divergent nozzle
Convergent nozzle
None of these

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Steam Boilers, Engines, Nozzles and Turbines
Maximum energy loss in a boiler occurs due to

Incomplete combustion
Flue gases
Ash content
Unburnt carbon in ash

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