GASCO Exit Exam • Set 8 Question 1 of 30

What can lead to LNG (cargo) leak into primary insulation spaces?

✓

Direct Answer

Option B: Fatigue cracks on primary membrane

The correct answer is Fatigue cracks on primary membrane. This complies with established gas tanker operational standards, thermodynamics, and the IGC Code safety requirements.

All Options

Fatigue crack on ship hull

Fatigue cracks on primary membrane (Correct Answer)

Fatigue cracks on secondary membrane

Fatigue crack on ballast tank stiffener

Detailed Explanation & Context

The correct answer is Fatigue cracks on primary membrane. This complies with established gas tanker operational standards, thermodynamics, and the IGC Code safety requirements.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Liquefied Gas Tanker Cargo Operations (GASCO).

Practice Full GASCO Set 8

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 GASCO Set 8

View All 30 →

Q1 Ethylene Carriers use, Q2 _____________is an operating problem that happens when the vapour moves over the liquid's surface rapidly and the liquid droplets get entrapped with the vapour. Q3 Zero gas which is a calibration gas is made of pure___________. Q4 Why is adequate heel retained during short ballast voyages? Q5 The main purpose of zero gas is the calibration of ______________ reading of gas detectors. Q6 Identify the industry body which is associated with LNG industry although its major stakeholders are from the oil industry? Q7 The unit of measurement of amount of gas is referred as_________. Q8 ________________ is the process of changing the mixture in the tank because of the evaporation of the volatile constituent at first. Q9 _______________refers to the vapour mixture which is weaker that lower explosive limit. Q10 After discharging the liquid from the cargo tank, a small quantity will be remaining and it will be difficult to pump it out. This small quantity of liquid is called as________________.