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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The ratio of total useful heat drop to the total isentropic heat drop, is called

Stage efficiency
None of these
Rankine efficiency
Internal efficiency

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following is required for a steam condensing plant?

All of these
Condenser
Condensate pump
Air extraction pump

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Steam Boilers, Engines, Nozzles and Turbines
Ultimate analysis of fuel is determination of percentage of

Fixed carbon, ash, volatile matter, moisture
Lower calorific value
Higher calorific value
Carbon, hydrogen, nitrogen, sulphur, moisture

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Steam Boilers, Engines, Nozzles and Turbines
Proximate analysis of fuel is determination of percentage of

Fixed carbon, ash, volatile matter, moisture
Higher calorific value
Carbon, hydrogen, nitrogen, sulphur, moisture
Lower calorific value

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Steam Boilers, Engines, Nozzles and Turbines
The critical pressure at which latent heat of vaporisation is zero is

100 kgf/ cm²
225.65 kgf/ cm²
273 kgf/ cm²
1 kgf/ cm²

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Steam Boilers, Engines, Nozzles and Turbines
Calorific value of coal is of the order of

5000-8000 kcal/ kg
800-1200 kcal/ kg
200-400 kcal/ kg
2000-4000 kcal/ kg

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