The liquid-filled PV breaker has acted to...

The liquid-filled PV breaker has acted to...

Question 1 of 2707066636ee728f7522a1c517f81

The liquid-filled PV breaker has acted to relieve a vacuum in a tank. What action must be taken in regard to the PV-breaker before continuing operations?

Question 1 of 27070

Q

The liquid-filled PV breaker has acted to relieve a vacuum in a tank. What action must be taken in regard to the PV-breaker before continuing operations?

🔍 Key Concepts

• PV breaker (pressure-vacuum breaker) purpose on cargo/ballast tanks • How a liquid-filled PV breaker functions and what happens when it operates on vacuum • Whether any manual resetting or replacement is normally required after it relieves vacuum

💭 Think About

• When a liquid-filled PV breaker lifts to relieve vacuum, what physical change happens to the liquid inside? • Does operating on vacuum damage any parts (like a disc) or simply displace liquid/allow flow? • Think about normal shipboard procedure: before resuming loading/discharging, what is the simplest check or action you would logically make regarding this safety device?

✅ Before You Answer

• Confirm whether the breaker is designed to automatically reseat after operation or needs manual reset • Consider if any component is sacrificial, like a rupture disc, that must be replaced after action • Verify that the selected option matches typical operating and maintenance instructions for a liquid-filled PV breaker, not for other types of devices