Which tank is most affected by liquid surge?
Right! Surge comes from liquid moving in a partially filled tank. 📖 p. 8-2
From Section 8 of the Iowa Commercial Driver's License Manual
Iowa CDL Tank Vehicles Practice Test
Who takes it: every CDL class (A, B and C), for the N endorsement.
Hauling liquids or gases in a tank. 20 questions, 16 right to pass (80%).
Practice Tank Vehicles
- 10questions a round
- 1manual section
Take the Tank Vehicles test
- 20questions
- 16correct to pass
- –no test taken yet
A Tank Vehicles question to try
Tap an answer to see if you’re right, and the page
Where it is in the Iowa Commercial Driver's License Manual
Your score on each part fills in as you study.
- Manual section 8
- Tank vehiclesNot practiced yetp. 8-1 to 8-3
The manual says to also study Sections 2, 5 and 9 for this test, so when a practice test needs more questions than this section has, it adds some from those sections.
Iowa answers about this test
Practice material, not the official test: check every answer in your state's current handbook. Disclaimer · How the rounds work · DOT
All Iowa CDL tests
- General Knowledge
- Combination Vehicles
- Air Brakes
- Doubles and Triples
- Passenger
- School Bus
- Tank VehiclesYou're here
- Hazardous Materials
- Which tests do you need?Pick what you'll drive and get your Iowa CDL plan, in order.