LGTCO/LGTF Exit Exam • Set 3 Question 28 of 30

What is the critical pressure of n-Butane in bars absolute?

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Direct Answer

Option A: 38.1 bar absolute

According to standardized gas cargo thermodynamic data, n-Butane possesses a critical pressure of 38.1 bar absolute. Understanding this physical limit is essential for managing cargo tank pressure relief systems and reliquefaction plant design parameters.

All Options

38.1 bar absolute (Correct Answer)

42.6 bar absolute

52.6 bar absolute

32.2 bar absolute

Detailed Explanation & Context

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

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