CDL · Tank vehicles
Which braking method works best for keeping liquid surge under control?
Correct answer: Begin braking early and hold the pedal pressure even until you have stopped.
Answer options
- ABegin braking early and hold the pedal pressure even until you have stopped Correct
- BStomp hard on the brake pedal as soon as you need to slow down
- CBrake hard once to slow down, then brake hard a second time to stop
Why
Slowing down early and gradually, with the same pedal pressure all the way, keeps the liquid from building into waves. Hard braking, or letting up on the brakes too soon, makes the load slosh and shove the truck.
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 Liquid Surge and Tanker Handling (20 questions). Take the full set and check your score.
Practice Liquid Surge and Tanker HandlingMore questions from Liquid Surge and Tanker Handling
- A tanker driver comes to a curve or a freeway ramp that has a posted speed. How fast should the tanker go through it?
- A tanker driver brakes while steering sharply into a turn. What could result?
- What can happen when the liquid in a tanker surges from side to side?
- Under which of these conditions does liquid surge create the most danger?
- What can a tanker driver do to reduce the effects of liquid surge?
- Liquid shifting around inside a tank that is only partly full is known as:
- Liquid tankers require extra care for two main reasons. What are they?
- What effect can a surging liquid load have on how a tanker handles?
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.