Steam Boilers, Engines, Nozzles and Turbines By compounding the expansion of steam in two or more cylinders, the length of stroke None of these Decreases Increases Does not change None of these Decreases Increases Does not change ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of steam turbines may be improved by Binary vapor plant Reheating of steam Any one of these Regenerative feed heating Binary vapor plant Reheating of steam Any one of these Regenerative feed heating ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A single stage impulse turbine with a diameter of 1.2 m runs at 3000 r.p.m. If the blade speed ratio is 0.42, then the inlet velocity of steam will be 188 m/s 79 m/s 450 m/s 900 m/s 188 m/s 79 m/s 450 m/s 900 m/s ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The relative efficiency is defined as the Ratio of heat equivalent to indicated power to the energy supplied in steam Ratio of thermal efficiency to Rankine efficiency Ratio of brake power to the indicated power Product of thermal efficiency and Rankine efficiency Ratio of heat equivalent to indicated power to the energy supplied in steam Ratio of thermal efficiency to Rankine efficiency Ratio of brake power to the indicated power Product of thermal efficiency and Rankine efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the workdone on the blades to the energy supplied to the blades, is called Gross or stage efficiency Nozzle efficiency Blading efficiency Mechanical efficiency Gross or stage efficiency Nozzle efficiency Blading efficiency Mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines During storage, the heating value of coal Increases Decreases May increase or decrease depending upon the method of storage Remain constant Increases Decreases May increase or decrease depending upon the method of storage Remain constant ANSWER DOWNLOAD EXAMIANS APP
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