Steam Boilers, Engines, Nozzles and Turbines Boiler parameters are expressed by Pressure of steam in kg/cm² All of these Tonnes/hr. of steam Temperature of steam in °C Pressure of steam in kg/cm² All of these Tonnes/hr. of steam Temperature of steam in °C ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Water tube boilers are those in which Work is done during adiabatic expansion Flue gases pass through tubes and water around it Change in enthalpy Water passes through the tubes and flue gases around it Work is done during adiabatic expansion Flue gases pass through tubes and water around it Change in enthalpy Water passes through the tubes and flue gases around it ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the isentropic heat drop to the heat supplied, is called Stage efficiency Reheat factor Internal efficiency Rankine efficiency Stage efficiency Reheat factor Internal efficiency Rankine efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of reaction turbine is maximum when (where α = Angle made by the absolute velocity ‘V’ at inlet) Vb = V cos α Vb = 0.5 V² cosα Vb = 0.5 V cosα Vb = V² cos α Vb = V cos α Vb = 0.5 V² cosα Vb = 0.5 V cosα Vb = V² cos α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Clearance ratio is the ratio of Clearance volume to the volume at cut-off Swept volume to the clearance volume Volume at cut-off to the swept volume Clearance volume to the swept volume Clearance volume to the volume at cut-off Swept volume to the clearance volume Volume at cut-off to the swept volume Clearance volume to the swept volume ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The fire tubes in, a Coarran and Scottish marine boiler are Inclined Horizontal Both horizontal and vertical Vertical Inclined Horizontal Both horizontal and vertical Vertical ANSWER DOWNLOAD EXAMIANS APP
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