USCG USCG Steam
Set 5 • Question #358 of 496
Launch Interactive Practice Room Nozzle diaphragms are installed in pressure- compounded impulse turbines to __________.
A
support moving blades
B
support shrouding
C
hold the nozzles of the stage and admit steam to moving blades
✓ Correct Answer
D
eliminate blade and nozzle losses
USCG NMC Regulatory Explanation
In an impulse turbine stage (Curtis / Rateau), steam pressure drops exclusively across stationary nozzles, converting pressure into high-velocity kinetic jets that drive the moving blades without pressure drop across the blades.
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