Steam Boilers, Engines, Nozzles and Turbines In a boiler, the heat is lost In moisture present in the fuel All of these To steam formed by combustion of hydrogen per kg of fuel To dry flue gases In moisture present in the fuel All of these To steam formed by combustion of hydrogen per kg of fuel To dry flue gases ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The variation of steam pressure in the nozzle depends upon All of these Dryness fraction of steam Velocity of steam Specific volume of steam All of these Dryness fraction of steam Velocity of steam Specific volume of steam 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. 15 to 20% 20 to 30% 10 to 15% 30 to 40% 15 to 20% 20 to 30% 10 to 15% 30 to 40% ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The function of a piston in a steam engine is To convert heat energy of the steam into mechanical work id) to exhaust steam from the cylinder at proper moment To guide motion of the piston rod and to prevent it from bending None of these To transfer motion from the piston to the cross-head To convert heat energy of the steam into mechanical work id) to exhaust steam from the cylinder at proper moment To guide motion of the piston rod and to prevent it from bending None of these To transfer motion from the piston to the cross-head ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Mechanical equivalent of heat for 1 kcal or Joule's equivalent is equal to 421 kg.m 539 kg.m 102 kg.m 421 kg.m 421 kg.m 539 kg.m 102 kg.m 421 kg.m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Over fire burning is the phenomenon of Supply of excess coal Burning CO and unburnt in upper zone of furnace by supplying more air Supply of excess, air Fuel bed firing Supply of excess coal Burning CO and unburnt in upper zone of furnace by supplying more air Supply of excess, air Fuel bed firing ANSWER DOWNLOAD EXAMIANS APP
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