Steam Boilers, Engines, Nozzles and Turbines Sulphur in coal results in Corroding air heaters Spontaneous combustion during coal storage All of these Facilitating ash precipitation Corroding air heaters Spontaneous combustion during coal storage All of these Facilitating ash precipitation ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In regenerative air preheaters, the heat is transferred From a metal wall from one medium to another From heating an intermediate material and then heating the air from this material By direct mixing Heat is transferred by bleeding some gas from furnace From a metal wall from one medium to another From heating an intermediate material and then heating the air from this material By direct mixing Heat is transferred by bleeding some gas from furnace ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The draught produced by a steam jet issuing from a nozzle placed in the ash-pit under the fire grate of the furnace is called Chimney draught Induced steam jet draught None of these Forced steam jet draught Chimney draught Induced steam jet draught None of these Forced steam jet draught ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a De-Laval turbine is (where α = Nozzle angle) sin²α cot²α cos²α tan²α sin²α cot²α cos²α tan²α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The velocity of steam at throat of the nozzle is __________ the velocity of sound. More than Equal to None of these Less than More than Equal to None of these Less than ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The reheat factor is the ratio of the Total useful heat drop to the total isentropic heat drop None of these Isentropic heat drop to the heat supplied Cumulative heat drop to the isentropic heat drop Total useful heat drop to the total isentropic heat drop None of these Isentropic heat drop to the heat supplied Cumulative heat drop to the isentropic heat drop ANSWER DOWNLOAD EXAMIANS APP
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