The searchlight on a survival craft must be...

Question 1 / 2707066636eec28f7522a1c51c7fd

Question 1 of 2707066636eec28f7522a1c51c7fd

The searchlight on a survival craft must be capable of operating 3 hours continuously or 6 hours intermittently if operated in which cycles?

Back

Question 1 of 27070

The searchlight on a survival craft must be capable of operating 3 hours continuously or 6 hours intermittently if operated in which cycles?

🔍 Key Concepts

• SOLAS requirements for survival craft equipment, especially portable lights and searchlights • Difference between continuous operation time and intermittent (duty cycle) operation • How operating time changes based on the ratio of ON time to OFF time

💭 Think About

• If a battery can power the light for 3 hours continuously, what must be true about the ON/OFF pattern to stretch that energy out to 6 hours total time? • Which ON/OFF cycle uses less average power over the 6-hour period, and how does that relate to total operating time? • Compare each choice: in a 15-minute period, how many minutes is the light actually ON versus OFF?

✅ Before You Answer

• Calculate or compare the fraction of time ON for each duty cycle (e.g., ON minutes / total cycle minutes). • Verify which cycle would approximately double the total usable time compared to continuous operation, given the same battery capacity. • Make sure the chosen option has a realistic rest period that could allow the battery to last 6 hours without exceeding the 3-hour equivalent ON time.

Question 1 of 27070

The searchlight on a survival craft must be capable of operating 3 hours continuously or 6 hours intermittently if operated in which cycles?

5 minutes on and 10 minutes off

10 minutes on and 5 minutes off

15 minutes on and 5 minutes off

15 minutes on and 10 minutes off

Question 1 / 2707066636eec28f7522a1c51c7fd

Question 1 of 2707066636eec28f7522a1c51c7fd

The searchlight on a survival craft must be capable of operating 3 hours continuously or 6 hours intermittently if operated in which cycles?

Back

Question 1 of 27070

The searchlight on a survival craft must be capable of operating 3 hours continuously or 6 hours intermittently if operated in which cycles?