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 = V cos α Vb = V² cos α Vb = 0.5 V² cosα Vb = 0.5 V cosα Vb = V cos α Vb = V² cos α Vb = 0.5 V² cosα Vb = 0.5 V cosα ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum efficiency of a De-Laval turbine is (where α = Nozzle angle) tan²α cot²α cos²α sin²α tan²α cot²α cos²α sin²α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The Locomotive boiler has 137 fire tubes and 44 superheated tubes 157 fire tubes and 24 superheated tubes 147 fire tubes and 34 superheated tubes 167 fire tubes and 14 superheated tubes 137 fire tubes and 44 superheated tubes 157 fire tubes and 24 superheated tubes 147 fire tubes and 34 superheated tubes 167 fire tubes and 14 superheated tubes ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Curtis turbine is a Pressure-velocity compounded turbine Simple reaction turbine Pressure compounded turbine Velocity compounded turbine Pressure-velocity compounded turbine Simple reaction turbine Pressure compounded turbine Velocity compounded turbine ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines On Millier chart, the constant pressure lines Diverge from right to left Diverge from left to right First rise up and then fall Are equally spaced throughout Diverge from right to left Diverge from left to right First rise up and then fall Are equally spaced throughout ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines On Mollier chart, flow through turbine is represented by Straight inclined line Vertical straight line Curved line Horizontal straight line Straight inclined line Vertical straight line Curved line Horizontal straight line ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS