Steam Boilers, Engines, Nozzles and Turbines The critical pressure gives the velocity of steam at the throat Less than the velocity of sound None of these Equal to the velocity of sound More than the velocity of sound Less than the velocity of sound None of these Equal to the velocity of sound More than the velocity of sound ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The cylindrical shell of a Lancashire boiler has diameter from 1 to 2 m 1.25 to 2.25 m 1.75 to 2.75 m 1.5 to 2.5 m 1 to 2 m 1.25 to 2.25 m 1.75 to 2.75 m 1.5 to 2.5 m ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Which of the following are boiler accessories? Both (A) and (B) None of these Superheater Economizer Both (A) and (B) None of these Superheater Economizer ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the energy required to produce the artificial draught (expressed in meters head or J/kg of flue gas) to the mechanical equivalent of extra heat carried away per kg of flue gases due to natural draught, is known as Power of the boiler Efficiency of the boiler Efficiency of the chimney Efficiency of the fan Power of the boiler Efficiency of the boiler Efficiency of the chimney Efficiency of the fan ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines If partial pressure of air and steam be ‘pa’ and ‘ps’ respectively in a condenser, then according to Dalton's law, the pressure in condenser is equal to None of these ps - pa pa - ps pa + ps None of these ps - pa pa - ps pa + ps ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The process of draining steam from the turbine, at certain points during its expansion and using this steam for heating the feed water in feed water heaters and then supplying it to the boiler is known as Reheating of steam Bleeding Regenerative heating None of these Reheating of steam Bleeding Regenerative heating None of these ANSWER DOWNLOAD EXAMIANS APP
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