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Steam Boilers, Engines, Nozzles and Turbines

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

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

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

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

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Steam Boilers, Engines, Nozzles and Turbines
The length of Cornish boiler is of the order of

35 m
79 m
24 m
57.5 m

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

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Steam Boilers, Engines, Nozzles and Turbines
Pick up the wrong statement about critical condition of steam

This is the maximum pressure limit
Specific volume of steam and liquid is same
Liquid directly becomes steam
Latent heat is zero

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Steam Boilers, Engines, Nozzles and Turbines
Which of the following is a fire tube boiler?

Lancashire boiler
None of these
Babcock and Wilcox boiler
Yarrow boiler

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MORE MCQ ON Steam Boilers, Engines, Nozzles and Turbines

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