Steam Boilers, Engines, Nozzles and Turbines Parson's reaction turbine is a __________ reaction turbine. 60 percent 70 percent 50 percent 40 percent 60 percent 70 percent 50 percent 40 percent ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The purpose of governing in steam turbines is to Reheat the steam and improve its quality Maintain the speed of the turbine Completely balance against end thrust Reduce the effective heat drop Reheat the steam and improve its quality Maintain the speed of the turbine Completely balance against end thrust Reduce the effective heat drop ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The draught may be produced by a All of these A steam jet Mechanical fan Chimney All of these A steam jet Mechanical fan Chimney ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of an impulse turbine is maximum when (where Vb = Blade speed, V = Absolute velocity of steam entering the blade, and α = Nozzle angle) Vb = 0.5 V cosα Vb = V² cosα Vb = 0.5 V² cosα Vb = V cosα Vb = 0.5 V cosα Vb = V² cosα Vb = 0.5 V² cosα Vb = V cosα ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of the plant __________ with the mechanical draught. Remains constant Decreases Increases None of these Remains constant Decreases Increases None of these 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 kinetic energy Heat energy of steam into potential energy Kinetic energy into heat energy of steam Potential energy into heat energy of steam Heat energy of steam into kinetic energy Heat energy of steam into potential energy Kinetic energy into heat energy of steam ANSWER DOWNLOAD EXAMIANS APP
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