Steam Boilers, Engines, Nozzles and Turbines The main object of a boiler trial is All of these To determine the thermal efficiency of the boiler when working at a definite pressure To determine the generating capacity of the boiler To prepare heat balance sheet for the boiler All of these To determine the thermal efficiency of the boiler when working at a definite pressure To determine the generating capacity of the boiler To prepare heat balance sheet for the boiler ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Locomotive boiler is of the following type Internally fired Horizontal Multi tubular All of the listed here Internally fired Horizontal Multi tubular All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines For burning 1 kg of carbon to CO as per chemically correct combustion, amount of air required is 8/3 kg 4/3 kg 1 kg 2 kg 8/3 kg 4/3 kg 1 kg 2 kg ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The heat balance sheet for the boiler shows the All of these Complete account of heat supplied by 1 kg of dry fuel and the heat consumed Moisture present in the fuel Steam formed by combustion of hydrogen per kg of fuel All of these Complete account of heat supplied by 1 kg of dry fuel and the heat consumed Moisture present in the fuel Steam formed by combustion of hydrogen per kg of fuel ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The critical pressure gives the velocity of steam at the throat None of these Less than the velocity of sound Equal to the velocity of sound More than the velocity of sound None of these Less than the velocity of sound Equal to the velocity of sound More than the velocity of sound ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The velocity of steam leaving the nozzle (V) is given by (where K = Nozzle coefficient or nozzle efficiency, and hd = Enthalpy or heat drop during expansion of steam in a nozzle) V = 44.72 K hd V = 44.72 K hd V = 44.72 K hd V = 44.72 hd K V = 44.72 K hd V = 44.72 K hd V = 44.72 K hd V = 44.72 hd K ANSWER DOWNLOAD EXAMIANS APP
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