Steam Boilers, Engines, Nozzles and Turbines Which of the following is correct? (Where pa = Actual mean effective pressure, pm = Theoretical mean effective pressure, and K = Diagram factor) pa = pm + K pa = pm/K pa = pm × K pa = K/pm pa = pm + K pa = pm/K pa = pm × K pa = K/pm 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 Rankine efficiency Reheat factor Internal efficiency Stage efficiency Rankine efficiency Reheat factor Internal efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a Tandem type compound engine, the high pressure and low pressure cylinders Are set in V-arrangement Have common piston rod Are set at 90° Have separate piston rods Are set in V-arrangement Have common piston rod Are set at 90° Have separate piston rods ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Relative percentage of heat absorbed through the heat transfer of(i) Furnace water wall(ii) Boiler tank(iii) Superheater(iv) Economizer(v) Air-heater of a typical boiler of 200 MW capacity would be of the order of 20 : 48 : 7 : 15 : 10 10 : 7 : 15 : 20 : 48 48 : 20 : 15 : 7 : 10 7 : 15 : 20 : 10 : 48 20 : 48 : 7 : 15 : 10 10 : 7 : 15 : 20 : 48 48 : 20 : 15 : 7 : 10 7 : 15 : 20 : 10 : 48 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a reaction turbine, when steam flows through the fixed blades, Pressure decreases while velocity increases Pressure and velocity both decreases Pressure increases while velocity decreases Pressure and velocity both increases Pressure decreases while velocity increases Pressure and velocity both decreases Pressure increases while velocity decreases Pressure and velocity both increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The change in internal energy in steam engines equals to Work done during the Rankine cycle Work done during compression Work done during adiabatic expansion Change in enthalpy Work done during the Rankine cycle Work done during compression Work done during adiabatic expansion Change in enthalpy ANSWER DOWNLOAD EXAMIANS APP
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