Steam Boilers, Engines, Nozzles and Turbines A _________ in a boiler is used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit. Blow off cock Stop valve Safety valve Fusible plug Blow off cock Stop valve Safety valve Fusible plug ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a reaction turbine, when steam flows through the fixed blades, Pressure increases while velocity decreases Pressure and velocity both decreases Pressure and velocity both increases Pressure decreases while velocity increases Pressure increases while velocity decreases Pressure and velocity both decreases Pressure and velocity both increases Pressure decreases while velocity increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The efficiency of reaction turbine is maximum when (where α = Angle made by the absolute velocity ‘V’ at inlet) Vb = 0.5 V cosα Vb = 0.5 V² cosα Vb = V cos α Vb = V² cos α Vb = 0.5 V cosα Vb = 0.5 V² cosα Vb = V cos α Vb = V² cos α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A condenser in a steam power plant Reduces back pressure of steam Reduces temperature of exhaust steam Increases expansion ratio of steam All of these Reduces back pressure of steam Reduces temperature of exhaust steam Increases expansion ratio of steam All of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The length of shell of a Locomotive boiler is 3 m 1 m 2 m 4 m 3 m 1 m 2 m 4 m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The value of diagram factor depends upon Back pressure All of these Initial pressure of steam Initial conditions of steam Back pressure All of these Initial pressure of steam Initial conditions of steam ANSWER DOWNLOAD EXAMIANS APP
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