USCG USCG Steam
Set 12 • Question #106 of 496
Launch Interactive Practice Room The designed function of fixed blades in an impulse turbine is to __________.
A
prevent steam turbulence
B
decrease steam velocity
C
equalize pressure differences
D
change the direction of steam flow
✓ Correct Answer
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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