USCG Exam PracticeSingle-screw maneuvering and prop walk
Under 46 CFR §184.620, a propulsion engine control system, including pilothouse control, must be designed so that a loss of power to the control system produces what result?
- A. An automatic increase in shaft speed to maintain steerageway
- B. An automatic shift to the secondary steering position
- ✓ No increase in shaft speed or propeller pitchCorrect
- D. An immediate shutdown of the propulsion engine
Why C is correct
46 CFR §184.620(c) requires that a propulsion engine control system be designed so that a loss of power to the control system does not result in an increase in shaft speed or propeller pitch. The regulation does not require automatic shutdown or automatic transfer to a secondary station upon loss of control power.
Cited:46 CFR §184.620