CDL Practice Tests

Class A CDL Practice Test #1

Page Border

Question #1 of 114

Class A CDL Test Question Image

What can be done to help prevent oil and water from building up in the air tanks?

Avoid using the brakes in humid weather.

Perform an air brake pump down test 3 times a day.

Keep light pressure on the brakes when driving through water.

Use an alcohol evaporator.

All of the above.

None of the above.

Class A Commercial Driver’s License

You will need a “Class A” commercial driver’s license if you plan to drive any combination of vehicles which have a gross combination weight rating or gross combination weight of 26,001 pounds or more, whichever is greater, including a possible towed unit or units with a gross vehicle weight rating or gross vehicle weight of more than 10,000 pounds, whichever is greater.

Source: Federal Motor Carrier Safety Administration.


CDL Practice Test (Home) | General Knowledge Test | General Knowledge Test Part 2

True/False General Knowledge Challenge | Hazmat Test | Hazmat True/False Test | Air Brake Test

Air Brake Test (New) | Combination Vehicles Test | Doubles and Triples Test | Tanker Test

Pre-Trip Inspection | Truck Driver Requirements | School Bus Test | Passenger Vehicle Test

Class A CDL Test #1 | Class A CDL Test #2 | Class B CDL Test #1 | Class B CDL Test #2

CDL Learning Series | CDL Training Information

Privacy Policy  |  Contact

© 2020