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Gas Carrier Basic Principles

CBT 12 questions

First 5 of 12 questions — with answers

The correct answer is marked. Unlock the rest to study the whole test, online or offline.

  1. Question 1

    According to SOLAS, what is the maximum allowable oxygen content of the inert gas produced by an inert gas generator?
    • Less than 5 % by volume.
    • Less than 3 % by volume.
    • Less than 8 % by volume.
    • There should be no oxygen present.

  2. Question 2

    How can we increase the temperature at which a liquid boils?
    • By decreasing the pressure.
    • By increasing the pressure.
    • By moving it to high altitude.
    • The boiling point is a fixed value.

  3. Question 3

    In relation to cargo operations on gas carriers, what does the term ‘gas freeing’ mean?
    • The removal of toxic and flammable gas from a tank with inert gas, followed by the introduction of fresh air.
    • The removal of cargo gas from a tank using fresh air, followed by the introduction of inert gas.
    • The removal of oxygen from a tank with inert gas.
    • The removal of toxic and flammable gas from a tank with inert gas.

  4. Question 4

    In relation to cargo operations on gas carriers, what does the term "gassing up" mean?
    • Replacing an inert atmosphere in a tank with fresh air.
    • Replacing an inert atmosphere in a tank with the vapour from the next cargo to allow cooling down and loading.
    • Replacing a gas free atmosphere in a tank with the vapour from the next cargo to allow cooling down and loading.
    • Replacing the cargo vapour in a tank with inert gas.

  5. Question 5

    Cameras, phones, radios and torches used in or near the cargo areas onboard a gas carrier must be ...
    • ... approved as safe to use in a hazardous area.
    • ... kept switched off at all times.
    • ... only operated on battery power.
    • ... only used in aircraft mode.

Preview — 5 of 12 questions

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About this CBT test

Gas Carrier Basic Principles is a CBT test with 12 questions and verified answers. Common topics include: gas, cargo, carriers, inert, tanks, temperature, relation, operations.

You can practise the free questions online — one at a time, with the correct answer — or unlock the whole test and download it to study offline, without internet.

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