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 = 0.5 V cosα Vb = 0.5 V² cosα Vb = V² cos α Vb = V cos α Vb = 0.5 V cosα Vb = 0.5 V² cosα Vb = V² cos α ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The reheat factor depends upon All of these Turbine stage efficiency Exit pressure Initial pressure and superheat All of these Turbine stage efficiency Exit pressure Initial pressure and superheat ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The high pressure boiler is one, which produces steam at a pressure more than 5 kg/cm² 10 kg/cm² Atmospheric pressure 7580 kg/cm² 5 kg/cm² 10 kg/cm² Atmospheric pressure 7580 kg/cm² 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 A valve installed between the boiler and the feed pump is Blow off cock None of these Steam stop valve Feed check valve Blow off cock None of these Steam stop valve Feed check valve ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines By compounding the expansion of steam in two or more cylinders, the length of stroke Does not change Increases None of these Decreases Does not change Increases None of these Decreases ANSWER DOWNLOAD EXAMIANS APP
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