Steam Boilers, Engines, Nozzles and Turbines A condenser in a steam power plant All of these Reduces back pressure of steam Increases expansion ratio of steam Reduces temperature of exhaust steam All of these Reduces back pressure of steam Increases expansion ratio of steam Reduces temperature of exhaust steam ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which is not the correct statement about moisture in coal? It increases thermal efficiency Some moisture in coal helps in better burning which is not possible with completely dry coal In some coals moisture may be present up to 40% Inherent moisture and surface moisture are different things It increases thermal efficiency Some moisture in coal helps in better burning which is not possible with completely dry coal In some coals moisture may be present up to 40% Inherent moisture and surface moisture are different things ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum heat loss is a boiler occurs due to Moisture in fuel Steam formation Unburnt carbon Dry flue gases Moisture in fuel Steam formation Unburnt carbon Dry flue gases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Spontaneous combustion is a phenomenon in which Explosion in furnace Coal bursts into flame without any external ignition source but by itself due to gradual increase in temperature as a result of heat released by combination of oxygen with coal All the fuel burns instantaneously producing high energy release Fuel burns with less air Explosion in furnace Coal bursts into flame without any external ignition source but by itself due to gradual increase in temperature as a result of heat released by combination of oxygen with coal All the fuel burns instantaneously producing high energy release Fuel burns with less air ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The best suited coal for chain or traveling grate stoker boiler is Pulverized coal Non-coking or free burning coal High sulphur coal Coking coal Pulverized coal Non-coking or free burning coal High sulphur coal Coking coal ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The fire tubes in a Locomotive boiler has __________ diameter. 47.5 mm 4.75 mm 7.45 mm 5.47 mm 47.5 mm 4.75 mm 7.45 mm 5.47 mm ANSWER DOWNLOAD EXAMIANS APP
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