Kentucky CDL Practice Test: Class A - Test 8 2026
Based on
2026 KY CDL Handbook
Instruction: When applying for this license, applicants must pass a 50-question test. And applicants must score 80% to pass the test. The following questions are based on the details provided in the KY CDL Handbook. Endorsements that may be used with a Class A CDL include Hazardous Materials, Passenger, Double and Triples, HazMat and Tanker, Air Brakes and School bus. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at Kentucky KSP locations.
3. The emergency brakes will come on __________.
A
When water and oil are expelled for the air tank.
B
Whenever air pressure in the emergency line is lost.
C
If the driver honks the horn.
D
Only during the winter.