Question 32 of 120

Before driving away after unloading, what should you confirm about the tank's discharge valve?

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That it has been repainted since the last trip
That it is left slightly open to relieve pressure while driving
That it is fully closed and not leaking
That it matches the color of the hose used

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Correct answer to question 32 (Tank Vehicles): That it is fully closed and not leaking

Why

A discharge valve that isn't fully closed can leak product onto the road once the vehicle is moving, so confirming it's sealed is a required step before leaving the unloading site.

Updated: November 2026

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Before driving away after unloading, what should you confirm about the tank's discharge valve?

Why

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