Steam Boilers, Engines, Nozzles and Turbines The factor of evaporation for all boilers is always Equal to unity Less than unity None of these Greater than unity Equal to unity Less than unity None of these Greater than unity ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of a cylindrical shell of a Scotch marine boiler varies from None of these 2.5 to 3.5 m 3.5 to 4.5 m 1.5 to 2 m None of these 2.5 to 3.5 m 3.5 to 4.5 m 1.5 to 2 m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The high pressure boiler is one, which produces steam at a pressure more than Atmospheric pressure 10 kg/cm² 5 kg/cm² 7580 kg/cm² Atmospheric pressure 10 kg/cm² 5 kg/cm² 7580 kg/cm² 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 = V cosα Vb = V² cosα Vb = 0.5 V cosα Vb = 0.5 V² cosα Vb = V cosα Vb = V² cosα Vb = 0.5 V cosα Vb = 0.5 V² cosα ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A compound steam engine in which piston rods of high pressure and low pressure cylinders are attached to two different cranks set at 90° to each other, is called Both (A) and (B) Receiver type compound engine Tandem type compound engine Woolf type compound engine Both (A) and (B) Receiver type compound engine Tandem type compound engine Woolf type compound engine ANSWER DOWNLOAD EXAMIANS APP
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 Straight inclined line Curved line Vertical straight line Horizontal straight line Straight inclined line Curved line Vertical straight line ANSWER DOWNLOAD EXAMIANS APP
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