Steam Boilers, Engines, Nozzles and Turbines The stage efficiency (ηS) is given by (where ηB = Blading efficiency, and ηN = Nozzle efficiency) ηS = ηN / ηB ηS = ηB / ηN None of the listed here ηS = ηB × ηN ηS = ηN / ηB ηS = ηB / ηN None of the listed here ηS = ηB × ηN ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The ratio of the isentropic heat drop to the heat supplied, is called Rankine efficiency Internal efficiency Reheat factor Stage efficiency Rankine efficiency Internal efficiency Reheat factor Stage efficiency ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines Expansion ratio is the ratio of Swept volume to the clearance volume Clearance volume to the swept volume Volume at cut-off to the swept volume Swept volume to the volume at cut-off Swept volume to the clearance volume Clearance volume to the swept volume Volume at cut-off to the swept volume Swept volume to the volume at cut-off ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The device attached to the steam chest for preventing explosions due to excessive internal pressure of steam is called Pressure gauge Fusible plug Water level indicator Safety valve Pressure gauge Fusible plug Water level indicator Safety valve ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines A device used to put off fire in the furnace of the boiler when the level of water in the boiler falls to an unsafe limit, is called Stop valve Blow off cock Superheater None of these Stop valve Blow off cock Superheater None of these ANSWER DOWNLOAD EXAMIANS APP
Steam Boilers, Engines, Nozzles and Turbines The discharge is __________ at critical pressure. Minimum Zero Maximum None of these Minimum Zero Maximum None of these ANSWER DOWNLOAD EXAMIANS APP
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