Steam Boilers, Engines, Nozzles and Turbines In recuperative air preheaters, the heat is transferred Heat is transferred by bleeding some gases 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 gases 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 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Vacuum for reciprocating steam engines compared to steam turbines is Equal Could be more or less depending on the size of plant Less More Equal Could be more or less depending on the size of plant Less More ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In an ideal impulse turbine, the Axial velocity at inlet is equal to that at the outlet Absolute velocity at the inlet of moving blade is equal to that at the outlet Relative velocity at the inlet of the moving blade is equal to that at the outlet Whirl velocity at inlet is equal to that at the outlet Axial velocity at inlet is equal to that at the outlet Absolute velocity at the inlet of moving blade is equal to that at the outlet Relative velocity at the inlet of the moving blade is equal to that at the outlet Whirl velocity at inlet is equal to that at the outlet ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The three "Ts" for good combustion are Temperature, time, and turbulence Thorough mixing, total air and temperature Total air, time, and temperature Total air, true fuel, and turbulence Temperature, time, and turbulence Thorough mixing, total air and temperature Total air, time, and temperature Total air, true fuel, and turbulence ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which is not correct statement about pulverized fuel firing? High burning rate is possible Heat release can be easily controlled It is the best technique for burning high ash content fuel having low fusion ash Fuel burns economically High burning rate is possible Heat release can be easily controlled It is the best technique for burning high ash content fuel having low fusion ash Fuel burns economically ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Calorific value of coal is of the order of 800-1200 kcal/ kg 2000-4000 kcal/ kg 5000-8000 kcal/ kg 200-400 kcal/ kg 800-1200 kcal/ kg 2000-4000 kcal/ kg 5000-8000 kcal/ kg 200-400 kcal/ kg ANSWER DOWNLOAD EXAMIANS APP
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