Steam Boilers, Engines, Nozzles and Turbines A turbine is said to have an axial discharge when the steam leaves the blade tip at _________ to the direction of the blade motion. 90° 60° 180° 270° 90° 60° 180° 270° ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure ratio (p₂/p₁) is given by (p₂/p₁) = [2/(n - 1)] n/(n + 1) (p₂/p₁) = [(n - 1)/2] n + (1/n) (p₂/p₁) = [2/(n + 1)] n/(n-1) (p₂/p₁) = [(n + 1)/2] n - (1/n) (p₂/p₁) = [2/(n - 1)] n/(n + 1) (p₂/p₁) = [(n - 1)/2] n + (1/n) (p₂/p₁) = [2/(n + 1)] n/(n-1) (p₂/p₁) = [(n + 1)/2] n - (1/n) ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Water and sediment in fuel oil can be removed by Burning the oil Suspension Heating the oil in the settling tanks Cooling the oil in the settling tanks Burning the oil Suspension Heating the oil in the settling tanks Cooling the oil in the settling tanks ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The purpose of governing in steam turbines is to Reduce the effective heat drop Maintain the speed of the turbine Reheat the steam and improve its quality Completely balance against end thrust Reduce the effective heat drop Maintain the speed of the turbine Reheat the steam and improve its quality Completely balance against end thrust ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The blade friction in the impulse turbine reduces the velocity of steam by __________ while it passes over the blades. 20 to 30% 15 to 20% 30 to 40% 10 to 15% 20 to 30% 15 to 20% 30 to 40% 10 to 15% ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Expanding steam to a very low pressure (high vacuum) in steam engines is Desirable Uneconomical Economical Essential Desirable Uneconomical Economical Essential ANSWER DOWNLOAD EXAMIANS APP
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