CDL · Tank vehicles
While a tank vehicle is on the road, what condition should its manhole covers be in?
Correct answer: All closed before the vehicle starts moving.
Answer options
- AOpen, as long as the tank is empty
- BAll closed before the vehicle starts moving Correct
- CPropped slightly open so fumes can escape
Why
Every manhole cover has to be shut before the trip so the tank stays sealed and its contents cannot leak out. Leaving one open, even slightly, can lead to spills or escaping vapors.
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
- If you knowingly drive a tank vehicle that has a leak, what may happen?
- Bulkheads split a liquid tank into several separate compartments. Once they are all filled, where should the bulk of the weight be?
- While checking a tanker's hoses, pipes, and fittings for leaks, where should you look most closely?
- Which three factors set the limit on how much liquid you may load into a tank?
- Before you take a tank vehicle out on the road, what should you do first?
- In tank vehicle terms, what is meant by "outage"?
- The amount of outage you must leave in a tank is set by:
- When you inspect a tank vehicle, what is the single most important thing to look for?
Practice on your phone.
Practice here in your browser, or use the app with the same questions and explanations. It's free on the App Store.