Steam Boilers, Engines, Nozzles and Turbines The economiser is used in boilers to Economize on fuel Increase flue gas temperature Increase thermal efficiency of boiler Extract heat from the exhaust flue gases Economize on fuel Increase flue gas temperature Increase thermal efficiency of boiler Extract heat from the exhaust flue gases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A device in which some portion of waste heat of flue gases is recovered to heat the air before it passes to the furnace for combustion purpose, is known as Superheater Economizer Injector Air-preheater Superheater Economizer Injector Air-preheater ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The aim of a compound steam engine is To reduce the length of stroke To reduce the temperature range in each cylinder All of these To reduce the ratio of expansion in each cylinder To reduce the length of stroke To reduce the temperature range in each cylinder All of these To reduce the ratio of expansion in each cylinder ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines When steam after doing work in the cylinder passes into a condenser, the engine is said to be a Vertical steam engine Non-condensing steam engine Condensing steam engine Slow speed engine Vertical steam engine Non-condensing steam engine Condensing steam engine Slow speed engine ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The turbine blades are Straight Circular None of these Curved Straight Circular None of these Curved ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines De-Laval turbine is a Impulse-reaction turbine Simple impulse turbine None of these Simple reaction turbine Impulse-reaction turbine Simple impulse turbine None of these Simple reaction turbine ANSWER DOWNLOAD EXAMIANS APP
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