According to 46 CFR, Subchapter J...

According to 46 CFR, Subchapter J...

Question 1 of 270705eccefa4bacbc34ba4d48572

According to 46 CFR, Subchapter J (Electrical Engineering) which of the following motor applications would be required to be continuous in terms of duty cycle?

Question 1 of 27070

Q

According to 46 CFR, Subchapter J (Electrical Engineering) which of the following motor applications would be required to be continuous in terms of duty cycle?

🔍 Key Concepts

• 46 CFR Subchapter J – Electrical Engineering requirements for duty cycle and motor ratings • Difference between continuous-duty motors and intermittent/short-time duty motors in shipboard service • Which systems are considered vital to propulsion and machinery lubrication versus which are used only occasionally

💭 Think About

• For each listed motor, ask yourself: does this system need to run for long periods whenever the vessel is underway, or is it only used for short operations? • Which of these functions, if stopped unexpectedly while the vessel is underway, would most directly threaten the safety of the main propulsion machinery? • Think about regulatory intent: which services are usually treated as essential for safe operation, and therefore often specified as continuous-duty in the regulations?

✅ Before You Answer

• Identify which motor(s) support critical machinery systems (especially those needed whenever the main engine is running) • Distinguish between operational/occasional deck gear and machinery that must be available and effective at all times underway • Verify in 46 CFR Subchapter J that continuous-duty requirements are tied to specific essential services, not just any motor on board