Steam Boilers, Engines, Nozzles and Turbines In recuperative air preheaters, the heat is transferred Heat is transferred by bleeding some gases from furnace From heating an intermediate material and then heating the air from this material By direct mixing From a metal wall from one medium to another Heat is transferred by bleeding some gases from furnace From heating an intermediate material and then heating the air from this material By direct mixing From a metal wall from one medium to another ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines At critical point, i.e. p=225.65 kg/cm², the latent enthalpy of vaporisation is Minimum Depends on temperature also Maximum Zero Minimum Depends on temperature also Maximum Zero ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Cut-off governing as compared to throttle governing is Less efficient and less economical Less efficient and more economical More efficient and less economical More efficient and more economical Less efficient and less economical Less efficient and more economical More efficient and less economical More efficient and more economical ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The pressure of steam in the engine cylinder at the beginning of the stroke is ________ the boiler pressure. Less than Higher than None of these Equal to Less than Higher than None of these Equal to ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a steam engine, superheated steam from the boiler is fed into the steam chest at a pressure of 20 atmospheres 30 atmospheres 40 atmospheres 10 atmospheres 20 atmospheres 30 atmospheres 40 atmospheres 10 atmospheres ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The maximum discharge through a chimney occurs when the height of chimney is Infinitely long Around 200 meters Outside temperature is very low Equal to the height of the hot gas column producing draught Infinitely long Around 200 meters Outside temperature is very low Equal to the height of the hot gas column producing draught ANSWER DOWNLOAD EXAMIANS APP
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