Tanker practice test
The endorsement for hauling liquids and gases in tanks.
The Tanker endorsement ('N') allows a driver to transport liquids or gases in a tank that holds one thousand gallons or more, including an empty tank that has not been cleaned. It exists because a liquid or gas in a tank moves differently from a solid load: it sloshes, it shifts, and it changes how the vehicle handles, especially around corners and under braking. The test covers how the movement of a liquid affects the vehicle, the difference between baffled and unbaffled tanks, how to handle a partial load, and the extra care required when loading, driving and unloading a tanker. It is written to the federal knowledge areas every state is required to test. This bank ships after the three launch banks are live. Every item here is written for this site and carries its full explanation, free.
Tanker
This bank ships soon. The test covers the concepts in this page’s description, and your state’s manual is the thing to study.
These questions are written to the federal knowledge areas every state is required to test. They are not your state's questions — no free site has those. Your state writes its own test from its own CDL manual, and that manual is the thing to study.
All the tests
The requirement matrix on the home page computes which of the eight you need.
This site prepares for a written knowledge test. It is not driver training, it is not ELDT, and nothing on it substitutes for your state's CDL manual or a registered training provider. Air brake procedure, coupling, load securement and hazardous-materials handling are safety-critical, and this site never teaches them as something to do.