Steam Boilers, Engines, Nozzles and Turbines The economiser is used in boilers to Economize on fuel Increase thermal efficiency of boiler Extract heat from the exhaust flue gases Increase flue gas temperature Economize on fuel Increase thermal efficiency of boiler Extract heat from the exhaust flue gases Increase flue gas temperature 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. 30 to 40% 20 to 30% 15 to 20% 10 to 15% 30 to 40% 20 to 30% 15 to 20% 10 to 15% ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The discharge is __________ at critical pressure. Maximum Minimum None of these Zero Maximum Minimum None of these Zero ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The equivalent evaporation is defined as The amount of water evaporated from and at 100°C into dry and saturated steam The evaporation of 15.653 kg of water per hour from and at 100°C The amount of water evaporated or steam produced in kg per kg of fuel burnt The ratio of heat actually used in producing the steam to the heat liberated in the furnace The amount of water evaporated from and at 100°C into dry and saturated steam The evaporation of 15.653 kg of water per hour from and at 100°C The amount of water evaporated or steam produced in kg per kg of fuel burnt The ratio of heat actually used in producing the steam to the heat liberated in the furnace ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Blading efficiency is also known as None of these Stage efficiency Nozzle efficiency Diagram efficiency None of these Stage efficiency Nozzle efficiency Diagram efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Film boiling occurs at Atmospheric pressures Medium pressures Very high pressures Very low pressure Atmospheric pressures Medium pressures Very high pressures Very low pressure ANSWER DOWNLOAD EXAMIANS APP
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