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South Carolina CDL Practice Test: Tank - Test 5 2018

(From the 2018 South Carolina CDL Handbook)
Number of tests: 5
Number of questions: 30
Passing score: 80

Directions: 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 South Carolina Commercial Driver 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 South Carolina DMV locations.

You have made 2 errors so far.
1. Tanks can roll over easily because ____________.
  • When passing to the right on a one-way street.

  • When to do so would interfere with traffic.

  • When turning left into a driveway.

  • When the car in front is disabled.

2. What can cause a decrease in air pressure?
  • Maintain the 4-second following distance rule

  • Decrease following distance to 2 seconds

  • Not be concerned about following distance

  • Increase following distance to 5 or 6 seconds

3. Baffles in liquid cargo tanks do not usually prevent the liquid surge movement from _______.
  • Advance warning of a low speed sharp left curve.

  • Road curves right, then turns left.

  • Advance warning of a winding road.

  • Advance warning of a right curve.

4. Typically, if a trailer is made before 1975 and equipped with air brakes, it will _________.
  • Use your signal

  • Change lanes

  • Increase your speed

  • Turn the wheel

5. The effects of liquid surge can be particularly dangerous for tankers driving on what type of surface?
  • 25 mph

  • 30 mph

  • 20 mph

6. How many digits are identification numbers of hazardous materials?
  • Read the labels on the drug before driving.

  • Drive only during daylight hours.

  • Continue to drive.

  • Drink alcohol instead.