USCG USCG Steam
Set 3 • Question #292 of 496
Launch Interactive Practice Room Which of the following methods is used to counter axial thrust in a single flow reaction turbine?
A
A dummy piston and cylinder at the turbine inlet end
✓ Correct Answer
B
Pressure equalizing holes in the individual rotor wheels
C
Labyrinth packing
D
Carbon packing
USCG NMC Regulatory Explanation
In a reaction turbine stage (Parsons), steam expands and drops in pressure across both stationary guide vanes and moving rotor blades, producing force through impulse and reactive acceleration.
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