LNG Operations - Engine

Cargo System Basics

This test covers the fundamentals of LNG. A chance to test your expertise can arise even before a job posting comes up. You will check your knowledge in LNG related containment system, compressors either BOG Low Duty and High Duty, safety systems like ESD, Gas detection, etc. The discussion of real situations will rise your awareness and increase your competence.

Питань 18

Час 9 min

Мова Англійська

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Питання 1

What are two common types of N2 generators on the fleet?

A There are membrane generators and diesel generators.

B There are inert gas based generators and PSA generators.

C There are membrane based generators and PSA generators.

Питання 2

What is the difference between two common types of N2 generators?

A The difference is in the way they separate air molecules from the nitrogen.

B The difference is in the way they separate nitrogen molecules from the air.

C The difference is in the way they separate air molecules from the gas.

Питання 3

What is main purpose of JBOG system?

A An effect which describes the Joule Thomson law

B To recover the BOG which was sent from the vessel

C To separate sealing oil from the gas

Питання 4

What is composition of LNG?

A 91% of methane, 6% of ethane, 2% of propane and other gases.

B 100 % of methane.

C 79 % of methane and 21 % of oxygen.

Питання 5

Which cargo tanks design has higher cool down temperature?

A All cargo tanks gave same cooldown temperature.

B Moss tanks have higher cooldown temperature.

C Membrane tanks have higher cooldown temperature.

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