Steam Boilers, Engines, Nozzles and Turbines In designing air preheaters, the important design consideration is that Heat transfer area should be optimum Handling and maintenance should be easier Approach temperature should be as low as possible Stack gases should not be cooled to the dew point Heat transfer area should be optimum Handling and maintenance should be easier Approach temperature should be as low as possible Stack gases should not be cooled to the dew point ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Sulphur in coal results in Corroding air heaters Facilitating ash precipitation All of these Spontaneous combustion during coal storage Corroding air heaters Facilitating ash precipitation All of these Spontaneous combustion during coal storage ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following is steam dial? Non-coking bituminous coal Coking bituminous coal Pulverized coal Brown coal Non-coking bituminous coal Coking bituminous coal Pulverized coal Brown coal ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In cross compounding, the cylinders are arranged At 90° and each cylinder has common piston, connecting rod and crank Side by side and each cylinder has common piston, connecting rod and crank At 90° and each cylinder has separate piston, connecting rod and crank Side by side and each cylinder has separate piston, connecting rod and crank At 90° and each cylinder has common piston, connecting rod and crank Side by side and each cylinder has common piston, connecting rod and crank At 90° and each cylinder has separate piston, connecting rod and crank Side by side and each cylinder has separate piston, connecting rod and crank ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines When the circulation of water, in a boiler, is by a centrifugal pump, then the boiler is known as Internally fired boiler Natural circulation boiler Externally fired boiler Forced circulation boiler Internally fired boiler Natural circulation boiler Externally fired boiler Forced circulation boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines For a Parson's reaction turbine, if α₁ and α₂ are fixed blade angles at inlet and exit respectively and β₁ and β₂ are the moving blade angles at entrance and exit respectively, then α₁ = β₂ and β₁ = α₂ α₁ < β₁ and α₂ > β₂ α₁ = α₂ and β₁ = β₂ α₁ = β₁ and α₂= β₂ α₁ = β₂ and β₁ = α₂ α₁ < β₁ and α₂ > β₂ α₁ = α₂ and β₁ = β₂ α₁ = β₁ and α₂= β₂ ANSWER DOWNLOAD EXAMIANS APP
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