Tank
This endorsement is required to haul any liquid or gaseous materials in a tank or tanks having a capacity of 1,000 gallons or more that is either permanently or temporarily attached to the vehicle or chassis. To receive this endorsement, applicants must pass a test. The test consists of 20 multiple choice questions. Each question has three possible answer choices. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Vermont Commercial Driver’s Manual. Questions come from chapters covering: Driving Safely, Tank Vehicles, Hazardous Materials and Combination Vehicles. The Tank endorsement can be used with the Class A, B or C CDL.
Number of Question
Passing Score
1. When backing with a trailer, you should begin by:
Explanation
When backing with a trailer, begin by turning the steering wheel in the direction opposite of the turn. Once the trailer starts to turn, reverse the direction of the steering wheel to follow the trailer.
2. If the coolant temperature gauge goes above the highest safe temperature, you should:
Explanation
If the coolant temperature gauge goes above the highest safe temperature, you should stop driving as soon as possible and try to figure out what is wrong. There could be an issue in your vehicle that could lead to engine failure and possibly a fire.
3. If your vehicle gets stuck on railroad tracks, you should:
Explanation
If your vehicle gets stuck on railroad tracks for any reason, you should immediately exit the vehicle and walk away from the tracks. Contact the proper emergency authorities.
4. Outage:
Explanation
Because liquids expand when their temperatures increase, some space must be left in a tank to accommodate the expansion. This space is referred to as "outage." The amount of required outage is different for different liquids.
5. When traveling through a work zone, you should:
Explanation
Always observe posted speed limits for work zones. Slow down if road or weather conditions are adverse, and slow down even more if workers are on or near the road.
6. When glad hands are coupled, the seals should be pressed together at a ____ angle.
Explanation
When coupling, be sure to couple the proper glad hands. When glad hands are connected, the seals should be pressed together at a 90-degree angle.
7. When accelerating on a surface with poor traction, such as a wet road, a driver should:
Explanation
