Steam Boilers, Engines, Nozzles and Turbines The efficiency of a boiler is defined as Ratio of the mass of steam produced to the mass of total water supplied in a given time Ratio of the heat liberated in the furnace to the heat actually used in producing steam Ratio of heat actually used in producing steam to the heat liberated in the furnace None of these Ratio of the mass of steam produced to the mass of total water supplied in a given time Ratio of the heat liberated in the furnace to the heat actually used in producing steam Ratio of heat actually used in producing steam to the heat liberated in the furnace None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A double acting steam engine with a cylinder diameter of 190 mm and a stroke of 300 mm has a cut-off of 0.35. The expansion ratio for this engine is nearly 6.65 2.86 1.05 10.05 6.65 2.86 1.05 10.05 ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A nozzle is said to be a convergent nozzle When the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit When the cross-section of the nozzle decreases continuously from entrance to exit None of these When the cross-section of the nozzle increases continuously from entrance to exit When the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit When the cross-section of the nozzle decreases continuously from entrance to exit None of these When the cross-section of the nozzle increases continuously from entrance to exit ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In which of the following boilers, the draught in furnace is increased by utilising exhaust steam from engine Babcock and Wilcox boiler Lancashire boiler Benson boiler Locomotive boiler Babcock and Wilcox boiler Lancashire boiler Benson boiler Locomotive boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines For water, at pressures below atmospheric; Melting point drops slightly and boiling point drops slightly Melting point rises markedly and boiling point drops markedly Melting point drops slightly and boiling point drops markedly Melting point rises slightly and boiling point drops markedly Melting point drops slightly and boiling point drops slightly Melting point rises markedly and boiling point drops markedly Melting point drops slightly and boiling point drops markedly Melting point rises slightly and boiling point drops markedly ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Reheating of steam under ideal conditions takes place at constant Enthalpy Entropy Temperature Pressure Enthalpy Entropy Temperature Pressure ANSWER DOWNLOAD EXAMIANS APP
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