Steam Boilers, Engines, Nozzles and Turbines On Mollier chart, free expansion, or throttling process from high pressure to atmosphere is represented by Horizontal straight line Vertical straight line Curved line Straight inclined line Horizontal straight line Vertical straight line Curved line Straight inclined line 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 decreases while velocity increases Pressure and velocity both increases Pressure increases while velocity decreases Pressure and velocity both decreases Pressure decreases while velocity increases Pressure and velocity both increases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The length of Cornish boiler varies from 2 to 4.5 m 5 to 7.5 m 7 to 9 m 3 to 5 m 2 to 4.5 m 5 to 7.5 m 7 to 9 m 3 to 5 m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a De-Laval turbine is (where α = Nozzle angle) cot²α sin²α tan²α cos²α cot²α sin²α tan²α cos²α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The impulse turbine rotor efficiency will have a maximum value of 0.5 cos 2α, where α is the nozzle exit flow angle, if the Blade velocity coefficient is unity Blades are equiangular Blade solidity is 0.65 Blades are equiangular and frictionless Blade velocity coefficient is unity Blades are equiangular Blade solidity is 0.65 Blades are equiangular and frictionless ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The evaporation of 15.653 kg of water per hour from and at 100°C is called Factor of evaporation Evaporative capacity One boiler h.p. Equivalent evaporation Factor of evaporation Evaporative capacity One boiler h.p. Equivalent evaporation ANSWER DOWNLOAD EXAMIANS APP
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