LGTCO/LGTF Exit Exam • Set 12 Question 6 of 30

What is the safest action before changing cargo grade on a liquefied gas tanker?

✓

Direct Answer

Option C: confirm compatibility and cleaning/purging requirements

Under standard liquefied gas tanker operations and the IGC Code, confirm compatibility and cleaning/purging requirements represents the verified standard practice for What is the safest action before changing cargo grade on a liquefied gas tanker.

All Options

leave the manifold unattended

open all valves to save time

confirm compatibility and cleaning/purging requirements (Correct Answer)

ignore minor abnormal readings

Detailed Explanation & Context

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Liquefied Gas Tanker Cargo Operations (LGTCO/LGTF).

Practice Full LGTCO/LGTF Set 12

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 LGTCO/LGTF Set 12

View All 30 →

Q1 Which statement correctly describes the purpose of a temperature sensor? Q2 Which statement correctly describes the purpose of a heat exchanger? Q3 Why is continuous ventilation important before or during enclosed space work on gas carriers? Q4 What is the purpose of a temperature indicator in gas tanker cargo operations? Q5 Why is MARPOL awareness important during liquefied gas tanker operations? Q6 What is the safest action before changing cargo grade on a liquefied gas tanker? Q7 Why is deck scupper control important during liquefied gas tanker operations? Q8 Why is controlled venting important during liquefied gas tanker operations? Q9 What is the safest action if a leak is noticed on a liquefied gas tanker? Q10 Which statement about cooling exposed surfaces is correct for gas tanker emergencies?