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Steam Boilers, Engines, Nozzles and Turbines

Steam Boilers, Engines, Nozzles and Turbines
The forced circulation of water does not take place in

LaMont boiler
Lancashire boiler
Benson boiler
Velox boiler

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

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

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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
Cornish boiler
Lancashire boiler
Babcock and Wilcox boiler

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Steam Boilers, Engines, Nozzles and Turbines
When the total heat of steam is h kJ/kg and the sensible heat of feed water is hf1 kJ/kg, then the factor of evaporation is given by

(h × hf1)/2257
None of these
(h + hf1)/2257
(h - hf1)/2257

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Steam Boilers, Engines, Nozzles and Turbines
The action of steam in a steam turbine is

Dynamic
Static
Neither static nor dynamic
Static and dynamic

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Steam Boilers, Engines, Nozzles and Turbines
Vacuum for reciprocating steam engines compared to steam turbines is

Equal
More
Could be more or less depending on the size of plant
Less

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