Steam Boilers, Engines, Nozzles and Turbines In a steam engine, superheated steam from the boiler is fed into the steam chest at a pressure of 20 atmospheres 10 atmospheres 40 atmospheres 30 atmospheres 20 atmospheres 10 atmospheres 40 atmospheres 30 atmospheres ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The cylinder dimensions of a compound engine may be designed on the basis of Equal temperature drop in each cylinder for economy of steam Equal initial piston loads on all pistons for obtaining same size of piston rod, connecting rod etc. for all cylinders All of these Equal power developed in each cylinder for uniform turning moment Equal temperature drop in each cylinder for economy of steam Equal initial piston loads on all pistons for obtaining same size of piston rod, connecting rod etc. for all cylinders All of these Equal power developed in each cylinder for uniform turning moment ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The economiser is used in boilers to Increase thermal efficiency of boiler Economize on fuel Increase flue gas temperature Extract heat from the exhaust flue gases Increase thermal efficiency of boiler Economize on fuel Increase flue gas temperature Extract heat from the exhaust flue gases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following statement is correct for a compound steam engine? The cost of the engine, for the same power and economy, is more than that of a simple steam engine The forces in the working parts are increased as the forces are distributed over more parts The ratio of expansion is reduced, thus reducing the length of stroke The temperature range per cylinder is increased, with corresponding increase in condensation The cost of the engine, for the same power and economy, is more than that of a simple steam engine The forces in the working parts are increased as the forces are distributed over more parts The ratio of expansion is reduced, thus reducing the length of stroke The temperature range per cylinder is increased, with corresponding increase in condensation ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines When the speed of the crankshaft is between 100 r.p.m. and 250 r.p.m., the engine said to be a Medium speed steam engine None of the listed here High speed steam engine Slow speed engine Medium speed steam engine None of the listed here High speed steam engine Slow speed engine ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Fire tube boilers are limited to a maximum working pressure of 0.17 MN/m² 1.7 MN/m² 17 MN/m² 170 MN/m² 0.17 MN/m² 1.7 MN/m² 17 MN/m² 170 MN/m² ANSWER DOWNLOAD EXAMIANS APP
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