Steam Boilers, Engines, Nozzles and Turbines The economiser is used in boilers to Extract heat from the exhaust flue gases Increase thermal efficiency of boiler Increase flue gas temperature Economize on fuel Extract heat from the exhaust flue gases Increase thermal efficiency of boiler Increase flue gas temperature Economize on fuel ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the volume at cut-off to the swept volume is called Clearance ratio Cut-off ratio None of these Expansion ratio Clearance ratio Cut-off ratio None of these Expansion ratio ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines For the same diameter and thickness of tube, a water tube boiler compared to a fire tube boiler has Heating surface depends on other parameters Less heating surface More heating surface Equal heating surface Heating surface depends on other parameters Less heating surface More heating surface Equal heating surface ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Lancashire boiler is used where working pressure and power required are None of these High Low Moderate None of these High Low Moderate ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following is required for a steam condensing plant? Condenser All of these Condensate pump Air extraction pump Condenser All of these Condensate pump Air extraction pump ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A steam nozzle converts Potential energy into heat energy of steam Heat energy of steam into potential energy Heat energy of steam into kinetic energy Kinetic energy into heat energy of steam Potential energy into heat energy of steam Heat energy of steam into potential energy Heat energy of steam into kinetic energy Kinetic energy into heat energy of steam ANSWER DOWNLOAD EXAMIANS APP
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