Steam Boilers, Engines, Nozzles and Turbines When the cross-section of a nozzle increases continuously from entrance to exit, it is called a Convergent-divergent nozzle Convergent nozzle Divergent nozzle None of these Convergent-divergent nozzle Convergent nozzle Divergent nozzle None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Fire tube boilers are those in which Flue gases pass through tubes and water around it Tubes are laid vertically Water passes through the tubes and flue gases around it Forced circulation takes place Flue gases pass through tubes and water around it Tubes are laid vertically Water passes through the tubes and flue gases around it Forced circulation takes place ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The friction in the nozzle __________ exit velocity of steam. Has no effect on Increases Decreases None of these Has no effect on Increases Decreases None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The specific heat of superheated steam in kcal/kg is generally of the order of 0.8 0.3 0.5 0.1 0.8 0.3 0.5 0.1 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The aim of a compound steam engine is To reduce the ratio of expansion in each cylinder All of these To reduce the temperature range in each cylinder To reduce the length of stroke To reduce the ratio of expansion in each cylinder All of these To reduce the temperature range in each cylinder To reduce the length of stroke 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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