Steam Boilers, Engines, Nozzles and Turbines For the same length of stroke and speed of crankshaft, the piston speed for a double acting steam engine is _________ the piston speed of single acting steam engine. Twice Three times Four times Equal to Twice Three times Four times Equal to ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The reheat factor is the ratio of the None of these Cumulative heat drop to the isentropic heat drop Total useful heat drop to the total isentropic heat drop Isentropic heat drop to the heat supplied None of these Cumulative heat drop to the isentropic heat drop Total useful heat drop to the total isentropic heat drop Isentropic heat drop to the heat supplied ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A device used in a boiler to control the flow of steam from the boiler to the main pipe and to shut off the steam completely when required, is known as Fusible plug Stop valve Blow off cock Superheater Fusible plug Stop valve Blow off cock Superheater ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines De-Laval turbines are mostly used Where low speeds are required For large power purposes For small power purposes and high speeds For small power purposes and low speeds Where low speeds are required For large power purposes For small power purposes and high speeds For small power purposes and low speeds ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines When the cross-section of a nozzle increases continuously from entrance to exit, it is called a Divergent nozzle Convergent nozzle None of these Convergent-divergent nozzle Divergent nozzle Convergent nozzle None of these Convergent-divergent nozzle ANSWER DOWNLOAD EXAMIANS APP
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 (h × hf1)/2257 (h - hf1)/2257 None of these (h + hf1)/2257 (h × hf1)/2257 (h - hf1)/2257 None of these ANSWER DOWNLOAD EXAMIANS APP
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