CDL · Tank vehicles
On a compressed gas tank, when must the liquid discharge valves be kept closed?
Correct answer: Always, apart from loading and unloading.
Answer options
- AAlways, apart from loading and unloading Correct
- BOnly while the truck is in motion
- CAlways, even during loading and unloading
Why
These valves are opened only to load or unload the product. The rest of the time, whether the vehicle is moving or parked, they must stay shut.
About this question
Topic: Tank vehicles License: CDL
Part of these practice sets:
Where it applies: Asked in every state.
Practice the whole set
This question is part of Tank Inspection, Loading and Outage (20 questions). Take the full set and check your score.
Practice Tank Inspection, Loading and OutageMore questions from Tank Inspection, Loading and Outage
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