Refresher Exit Exam • Set 2 Question 29 of 30

A carbon dioxide fire extinguisher is required to be recharged if the weight loss exceeds what percentage of the weight of the charge?

✓

Direct Answer

Option B: Ten percent

According to maritime regulations and manufacturers' standards, a carbon dioxide extinguisher must be recharged if the weight of the agent lost exceeds 10% of the original charged weight. This ensures the unit remains effective for the intended discharge duration.

All Options

One percent

Ten percent (Correct Answer)

Seven percent

Five percent

Detailed Explanation & Context

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Refresher Course for STCW Modular Courses (Refresher).

Practice Full Refresher Set 2

Test yourself with 30 interactive questions, live timer, and instant score.

Launch Practice Simulator →

Question Discussion & Notes

Have a doubt, memory trick, or exam update? Share your insights with fellow mariners.

Loading mariner discussions...

« Previous Question Next Question »

More Questions in Refresher Set 2

View All 30 →

Q1 Which of the listed classes of fire is considered as one involving electrical equipment? Q2 Which of the following would be considered a Class “B” fire? Q3 If ignited, which material would be a class B fire? Q4 Which of the listed extinguishing agents is NOT suitable for fighting a liquid paint fire? Q5 Which extinguishing agent is most effective on a mattress fire? Q6 You are fighting a fire in a watertight compartment using hoses and river water. Stability may be reduced because of: Q7 When used to fight fire, carbon dioxide: Q8 Carbon dioxide as a firefighting agent has which advantage over other agents? Q9 To prevent the spread of fire by convection you should: Q10 What is NOT a characteristic of carbon dioxide fire-extinguishing agents?