GASCO Exit Exam • Set 2 Question 21 of 30

Which type of independent tank is spherical in shape and self-supporting?

✓

Direct Answer

Option D: Moss Rosenberg Type B Tank

The Moss Rosenberg Type B tank is a self-supporting, spherical pressure vessel. Its design allows for a 'leak-before-failure' approach, providing superior structural integrity. These tanks are a hallmark of specific LNG carrier designs, complying with the rigorous safety standards set forth in the IGC Code.

All Options

Gaztransport Membrane Tank

Integral Tank Type A

Technigaz Mark III

Moss Rosenberg Type B Tank (Correct Answer)

Detailed Explanation & Context

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 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 GASCO Set 2

View All 30 →

Q1 What safety valve is fitted on cargo lines to relieve thermal expansion of trapped liquid? Q2 What type of cargo compressor is commonly used in LPG reliquefaction plants? Q3 What emergency signal activates the shipwide ESD during cargo operations? Q4 What publication provides detailed safety guidelines for Tanker Safety in gas operations? Q5 How frequently must operational drills and practical checks for regulatory compliance and STCW code requirements be conducted for Advanced Liquefied Gas Tanker? Q6 What documented record must be maintained on board following completion of tasks related to regulatory compliance and STCW code requirements in Advanced Liquefied Gas Tanker? Q7 What is the primary function of the cargo vaporizer on an LNG carrier? Q8 Which type of independent tank is spherical in shape and self-supporting? Q9 What is 'gassing up' in gas carrier operations? Q10 What risk occurs if water vapor is present inside an LPG cargo system before loading cargo?