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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
Latent heat of dry steam at atmospheric pressure is equal to

427 kcal/ kg
100 kcal/ kg
539 kcal/ kg
539 BTU/ lb

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Steam Boilers, Engines, Nozzles and Turbines
For burning 1 kg of carbon to CO as per chemically correct combustion, amount of air required is

4/3 kg
1 kg
8/3 kg
2 kg

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following boiler is best suited to meet the fluctuating demand of steam?

Locomotive boiler
Lancashire boiler
Cornish boiler
Babcock and Wilcox boiler

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Steam Boilers, Engines, Nozzles and Turbines
The critical pressure ratio for gases is

0.528
0.546
0.577
0.582

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Steam Boilers, Engines, Nozzles and Turbines
A binary vapor plant consists of

Mercury boiler
Steam turbine
All of the listed here
Steam condenser

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

Flue gases pass through tubes and water around it
Tubes are laid vertically
Water passes through the tubes and flue gases around it
Forced circulation takes place

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