Steam Boilers, Engines, Nozzles and Turbines The stage efficiency (ηS) is given by (where ηB = Blading efficiency, and ηN = Nozzle efficiency) ηS = ηN / ηB None of the listed here ηS = ηB / ηN ηS = ηB × ηN ηS = ηN / ηB None of the listed here ηS = ηB / ηN ηS = ηB × ηN ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In impulse turbines, when friction is neglected, the relative velocity of steam at outlet tip of the blade is _________ the relative velocity of steam at inlet tip of the blade. None of these Greater than Equal to Less than None of these Greater than Equal to Less than ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The function of a cross-head is to guide motion of the _________ and to prevent it from bending. Connecting rod Eccentric rod Piston rod Valve rod Connecting rod Eccentric rod Piston rod Valve rod ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines In a nozzle, whole frictional loss is assumed to occur between Throat and exit Inlet and throat All of these Inlet and outlet Throat and exit Inlet and throat All of these Inlet and outlet ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Cut-off ratio is the ratio of Volume at cut-off to the swept volume Volume at cut-off to the clearance volume Clearance volume to the volume at cut-off Swept volume to the volume at cut-off Volume at cut-off to the swept volume Volume at cut-off to the clearance volume Clearance volume to the volume at cut-off Swept volume to the volume at cut-off ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The diameter of internal flue tubes of a Lancashire boiler is about ___ that of its shell. One-fourth One-third Two-fifth One-half One-fourth One-third Two-fifth One-half ANSWER DOWNLOAD EXAMIANS APP
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