Steam Boilers, Engines, Nozzles and Turbines The ratio of the useful heat drop to the isentropic heat drop is called Nozzle efficiency Vacuum efficiency Boiler efficiency Condenser efficiency Nozzle efficiency Vacuum efficiency Boiler efficiency Condenser efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A nozzle is said to be a convergent nozzle When the cross-section of the nozzle decreases continuously from entrance to exit When the cross-section of the nozzle increases continuously from entrance to exit None of these When the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit When the cross-section of the nozzle decreases continuously from entrance to exit When the cross-section of the nozzle increases continuously from entrance to exit None of these When the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines When the speed of the crankshaft is between 100 r.p.m. and 250 r.p.m., the engine said to be a High speed steam engine None of the listed here Slow speed engine Medium speed steam engine High speed steam engine None of the listed here Slow speed engine Medium speed steam engine ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines When the nozzle operates with the maximum mass flow, the nozzle is said to be Choked None of these Over-damping Under-damping Choked None of these Over-damping Under-damping 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
Steam Boilers, Engines, Nozzles and Turbines The clearance in the engine cylinder All of these Decreases the efficiency of the engine Increases the workdone Increases the mean effective pressure All of these Decreases the efficiency of the engine Increases the workdone Increases the mean effective pressure ANSWER DOWNLOAD EXAMIANS APP
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