Steam Boilers, Engines, Nozzles and Turbines Water tube boilers are those in which Change in enthalpy Work is done during adiabatic expansion Water passes through the tubes and flue gases around it Flue gases pass through tubes and water around it Change in enthalpy Work is done during adiabatic expansion Water passes through the tubes and flue gases around it Flue gases pass through tubes and water around it ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Degree of reaction is defined as the ratio of Heat drop in fixed blades to the heat drop in moving blades Heat drop in moving blades to the heat drop in fixed blades plus heat drop in moving blades Heat drop in moving blades to the heat drop in fixed blades Heat drop in fixed blades plus heat drop in moving blades to the heat drop in moving blades Heat drop in fixed blades to the heat drop in moving blades Heat drop in moving blades to the heat drop in fixed blades plus heat drop in moving blades Heat drop in moving blades to the heat drop in fixed blades Heat drop in fixed blades plus heat drop in moving blades to the heat drop in moving blades ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The nozzle efficiency is the ratio of Workdone on the blades to the energy supplied to the blades Energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam None of these Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam Workdone on the blades to the energy supplied to the blades Energy supplied to the blades per kg of steam to the total energy supplied per stage per kg of steam None of these Workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In order to reduce the rotor speed of an impulse turbine, the method employed is All of these Pressure compounding Velocity compounding Pressure-velocity compounding All of these Pressure compounding Velocity compounding Pressure-velocity compounding ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure ratio (p₂/p₁) is given by (p₂/p₁) = [(n - 1)/2] n + (1/n) (p₂/p₁) = [2/(n - 1)] n/(n + 1) (p₂/p₁) = [2/(n + 1)] n/(n-1) (p₂/p₁) = [(n + 1)/2] n - (1/n) (p₂/p₁) = [(n - 1)/2] n + (1/n) (p₂/p₁) = [2/(n - 1)] n/(n + 1) (p₂/p₁) = [2/(n + 1)] n/(n-1) (p₂/p₁) = [(n + 1)/2] n - (1/n) ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of internal flue tubes of a Lancashire boiler is about ___ that of its shell. Two-fifth One-fourth One-third One-half Two-fifth One-fourth One-third One-half ANSWER DOWNLOAD EXAMIANS APP
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