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Units and conversions challenge.

Keep barrels, tonnes, troy ounces and energy units from getting mixed up. Every answer includes a short explanation.

Question 1 of 5

Answers and explanations.

Try the quiz first. Then open any question to check the answer and the reason behind it.

  1. How many kilograms are in one metric tonne?

    Choices: 1,000 · 100 · 2,000

    Show the answer

    1,000. One metric tonne equals exactly 1,000 kilograms.

  2. Is a troy ounce the same weight as an ordinary ounce?

    Choices: Yes · No

    Show the answer

    No. No. A troy ounce is about 31.1035 grams; an ordinary avoirdupois ounce is about 28.35 grams.

  3. What does MMBtu measure?

    Choices: Energy · Distance · Purity

    Show the answer

    Energy. MMBtu means one million British thermal units and is used as an energy unit, including for natural gas.

  4. Is an oil barrel a unit of volume or weight?

    Choices: Volume · Weight

    Show the answer

    Volume. An oil barrel is a volume of 42 US gallons. Its weight depends on the density of the liquid inside.

  5. Changing dollars into euros changes which part of a quote?

    Choices: The currency expression · The physical amount in a tonne · The observation date

    Show the answer

    The currency expression. Currency conversion changes how the value is expressed; it does not change the physical quantity.

Learn more about this topic.

Put the lesson into practice in the Commodity Data Lab, apply it to the latest commodity snapshot, or review the source methodology.