Steam Boilers, Engines, Nozzles and Turbines The diameter of superheated tubes in a locomotive boiler is 13 mm 130 mm 31 mm 230 mm 13 mm 130 mm 31 mm 230 mm ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Expanding steam to a very low pressure (high vacuum) in steam engines is Uneconomical Essential Economical Desirable Uneconomical Essential Economical Desirable 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 ratio of expansion is reduced, thus reducing the length of stroke The forces in the working parts are increased as the forces are distributed over more parts 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 ratio of expansion is reduced, thus reducing the length of stroke The forces in the working parts are increased as the forces are distributed over more parts The temperature range per cylinder is increased, with corresponding increase in condensation ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of steam turbines may be improved by Any one of these Binary vapor plant Reheating of steam Regenerative feed heating Any one of these Binary vapor plant Reheating of steam Regenerative feed heating ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a Parson's turbine stage, blade velocity is 320 m/s at the mean radius and rotor blade exit angle is 30°. For minimum kinetic energy of the steam leaving the stage, the steam velocity at the exit of the rotor will be 160/3 m/s 640/3 m/s 320/3 m/s 640 m/s 160/3 m/s 640/3 m/s 320/3 m/s 640 m/s ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure of steam in the engine cylinder at the beginning of the stroke is ________ the boiler pressure. Equal to Higher than Less than None of these Equal to Higher than Less than None of these ANSWER DOWNLOAD EXAMIANS APP
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