Steam Boilers, Engines, Nozzles and Turbines The ratio of total useful heat drop to the total isentropic heat drop, is called Stage efficiency Rankine efficiency Internal efficiency None of these Stage efficiency Rankine efficiency Internal efficiency None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Efficiency of Rankine cycle can be increased by Decreasing exhausts pressure Increasing the expansion ratio Decreasing initial steam pressure and temperature Increasing exhaust pressure Decreasing exhausts pressure Increasing the expansion ratio Decreasing initial steam pressure and temperature Increasing exhaust pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure ratio for initially superheated steam is __________ as compared to initially dry saturated steam. More None of these Same Less More None of these Same Less ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The fire tubes in, a Coarran and Scottish marine boiler are Both horizontal and vertical Horizontal Inclined Vertical Both horizontal and vertical Horizontal Inclined Vertical ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In regenerative air preheaters, the heat is transferred By direct mixing From a metal wall from one medium to another From heating an intermediate material and then heating the air from this material Heat is transferred by bleeding some gas from furnace By direct mixing From a metal wall from one medium to another From heating an intermediate material and then heating the air from this material Heat is transferred by bleeding some gas from furnace ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The function of a piston rod is To transfer motion from the piston to the cross head To exhaust steam from the cylinder at proper moment To guide motion of the piston rod and to prevent it from bending To convert heat energy of the steam into mechanical work To transfer motion from the piston to the cross head To exhaust steam from the cylinder at proper moment To guide motion of the piston rod and to prevent it from bending To convert heat energy of the steam into mechanical work ANSWER DOWNLOAD EXAMIANS APP
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