USCG USCG Steam
Set 6 • Question #396 of 496
Launch Interactive Practice Room Shrouding on impulse turbine blading is held in place by __________.
A
seal welding
B
circumferential dovetails
C
peening the tenons
✓ Correct Answer
D
locking keys
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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