The guarding valve installed in a boiler...

Question 1 / 270705eccefa0bacbc34ba4d46fc1

Question 1 of 270705eccefa0bacbc34ba4d46fc1

The guarding valve installed in a boiler bottom blow line prevents __________.

Question 1 of 27070

The guarding valve installed in a boiler bottom blow line prevents __________.

🔍 Key Concepts

• Function of a guarding valve in a boiler bottom blow system • Normal flow path of water/steam during a bottom blow and when valves are shut • What happens to idle vs. steaming boilers if a valve in the blow line leaks

💭 Think About

• Think about which component is closest to the boiler itself and which is closer to the ship’s shell or overboard discharge. Where is the guarding valve usually located? • If the main bottom blow valve starts leaking when the boiler is in service, what extra protection does the guarding valve provide? • Consider what risks exist both to a steaming boiler and to an idle boiler that shares the same blow line. Which one is the guarding valve primarily meant to protect?

✅ Before You Answer

• Be clear on the direction of possible leakage: from the boiler out, from the line back in, and from seawater inboard • Visualize a simple piping diagram: boiler → bottom blow valve(s) → guarding valve → ship’s side valve/overboard • Check which options describe distinct hazards and whether the guarding valve’s position could realistically prevent each one

Question 1 of 27070

The guarding valve installed in a boiler bottom blow line prevents __________.

loss of steam and water from a steaming boiler due to a leaking bottom blow valve

leakage from the blow line back to an idle boiler

entry of seawater into idle boilers due to leaking skin and bottom blow valves

all of the above

Question 1 / 270705eccefa0bacbc34ba4d46fc1

Question 1 of 270705eccefa0bacbc34ba4d46fc1

The guarding valve installed in a boiler bottom blow line prevents __________.

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Question 1 of 27070

The guarding valve installed in a boiler bottom blow line prevents __________.