Delaware CDL Practice Test: Tank - Test 4 2026
Based on
2026 DE CDL Handbook
Instruction: To obtain this endorsement for hauling any liquid or gaseous materials in a tank or tanks, applicants must pass a 15-question test. And to pass the test, applicants must score at least 80%. Test questions are from the DE CDL Handbook. The Tanker Vehicles endorsement can be used with the Class A, B, or C CDL. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at Delaware DMV locations.
2. Trailers made before 1975 that are equipped with air brakes ______.
A
Were only equipped with spring brakes.
B
None of the listed answers.
C
May not have spring brakes.
D
Are easier to brake.