Question 678Steam Plants - Assistant Engineer
70% to passWhich of the steam losses listed would be associated with a multi-stage impulse turbine rather than a multi-stage reaction turbine?
ADiaphragm packing loss
BBlade and nozzle loss
CRadiation loss
DLeaving loss
AI Explanation
The correct answer is A) Diaphragm packing loss. In a multi-stage impulse turbine, the steam flows through a series of stationary nozzles and moving blades. The diaphragms separating the turbine stages have packing seals to minimize steam leakage between stages, which results in diaphragm packing loss. This type of loss is more associated with impulse turbines rather than reaction turbines, where the steam pressure drop occurs primarily across the stationary blades. The other options, B) Blade and nozzle loss, C) Radiation loss, and D) Leaving loss, are general steam turbine losses that can occur in both impulse and reaction turbine designs.
Related Questions
Q502:Which of the following actions should be carried out if the boiler water level i... Q28:The boiler main feed stop-check valve is located nearest the _______________. Q196:The items labeled "A" in the illustration are the _______________. Illustration ... Q91:When raising steam on a cold boiler under normal conditions, you should always _... Q490:The temperature of the fuel oil received during bunkering operations is critical...
Ready to test your knowledge?
Take a Steam Plants - Assistant Engineer Practice ExamOfficial Resources