Steam Boilers, Engines, Nozzles and Turbines A device used to increase the temperature of saturated steam without raising its pressure, is called Stop valve Fusible plug Superheater Blow off cock Stop valve Fusible plug Superheater Blow off cock 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 Fouling of heat transfer surfaces Raising of steam temperature High calorific value coal being burnt Higher effectiveness of boiler Fouling of heat transfer surfaces Raising of steam temperature High calorific value coal being burnt Higher effectiveness of boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The draught produced by a steam jet issuing from a nozzle placed in the ash-pit under the fire grate of the furnace is called Chimney draught Induced steam jet draught Forced steam jet draught None of these Chimney draught Induced steam jet draught Forced steam jet draught None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines For combustion of a fuel, following is essential Proper ignition temperature Correct fuel air ratio O₂ to support combustion All the three above Proper ignition temperature Correct fuel air ratio O₂ to support combustion All the three above ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A fusible plug is fitted in small boilers in order to Extinguish fire if water level in the boiler falls below alarming limit Control steam dome Avoid explosion Avoid excessive build up of pressure Extinguish fire if water level in the boiler falls below alarming limit Control steam dome Avoid explosion Avoid excessive build up of pressure ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The function of injector used in small capacity boilers is to Pump water, similar to boiler feed pump Inject chemical solution in feed pump Create vacuum Add make up water in the system Pump water, similar to boiler feed pump Inject chemical solution in feed pump Create vacuum Add make up water in the system ANSWER DOWNLOAD EXAMIANS APP
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