Which description matches the AVTUR label?

• A. AVTUR in white letters on a blue background.
• B. AVTUR in white letters on a red background.
• C. AVTUR in white letters on a white background.
• D. AVTUR in white letters on a black background.

Answer: (D)

AVTUR refers to aviation turbine fuel, the jet fuel used to power aircraft. Signage for this fuel needs to be quickly readable and unambiguous, especially in fueling areas where lighting can vary and operators move quickly. White letters on a black background provide the strongest contrast and the best legibility, which is why this combination is used for AVTUR labels.

Other color backgrounds would reduce contrast and could be confused with other signs or labels, so they’re not the standard match for AVTUR. That’s why white letters on a black background is the correct description.