Steam Boilers, Engines, Nozzles and Turbines The fire tubes in a Scotch marine boiler are Horizontal Vertical None of the listed here Inclined Horizontal Vertical None of the listed here Inclined ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Gradually increasing temperature of flue gases at inlet to chimney for given steam outputs is an indication of Higher effectiveness of boiler High calorific value coal being burnt Raising of steam temperature Fouling of heat transfer surfaces Higher effectiveness of boiler High calorific value coal being burnt Raising of steam temperature Fouling of heat transfer surfaces ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Superheating of steam is done at Constant temperature Constant volume Constant pressure Constant entropy Constant temperature Constant volume Constant pressure Constant entropy ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which is not the correct statement about moisture in coal? It increases thermal efficiency Inherent moisture and surface moisture are different things Some moisture in coal helps in better burning which is not possible with completely dry coal In some coals moisture may be present up to 40% It increases thermal efficiency Inherent moisture and surface moisture are different things Some moisture in coal helps in better burning which is not possible with completely dry coal In some coals moisture may be present up to 40% 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 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 Blade velocity coefficient is unity Blades are equiangular ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines There is always some steam left in the clearance space from the previous stroke. This steam left in the clearance space is called Superheated steam Saturated steam Cushion steam Wet steam Superheated steam Saturated steam Cushion steam Wet steam ANSWER DOWNLOAD EXAMIANS APP
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