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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Blading efficiency is also known as

Nozzle efficiency
Diagram efficiency
Stage efficiency
None of these

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Steam Boilers, Engines, Nozzles and Turbines
Incomplete combustion can be best judged by

Measuring carbon monoxide in flue gases
Measuring temperature of flue gases at exit of furnace
Smoky chimney exit
Excess air in flue gases

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Steam Boilers, Engines, Nozzles and Turbines
Mechanical equivalent of heat for 1 kcal or Joule's equivalent is equal to

421 kg.m
539 kg.m
102 kg.m
421 kg.m

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Steam Boilers, Engines, Nozzles and Turbines
The state of vapor under saturation condition is described by

Pressure and dryness fraction
Temperature alone
Pressure alone
Pressure and temperature

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Steam Boilers, Engines, Nozzles and Turbines
A valve installed between the boiler and the feed pump is

Steam stop valve
None of these
Blow off cock
Feed check valve

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Steam Boilers, Engines, Nozzles and Turbines
Duplex feed pumps are used in small steam boilers. These operate on the principle of

Axial flow pump
Centrifugal pump
Gear pump
Reciprocating pump

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