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The tanker endorsement applies to drivers who wish to drive a tank in Class A, B, or C CDL. To add this endorsement to your CLP/CDL, you must pass a knowledge test on the problems posed by large volume liquid cargos. The Iowa CDL tank vehicles test consists of 20 questions. To pass, you must correctly answer at least 16 questions (80%). The IA tanker test covers the following sections of the Iowa CDL Manual: Driving Safely, Combination Vehicles, Tank Vehicles, Hazardous Materials. Take this IA tanker practice test now to prepare for the actual test!
1. Front-end header boards:
protect drivers from spilled cargo.
protect drivers from cargo in case of an accident or emergency stop.
should never be used.
2. The manifest for transporting hazardous wastes must be:
signed by hand.
appear on both sides and ends of the vehicle.
attached to the appropriate placard.
3. Highway curves should be taken _________ the posted speed limit.
slightly below
well below
4. The tractor protection valve:
prevents the trailer from being accidentally released.
keeps your wheels from locking up when you brake hard.
keeps air in the brake system should the trailer develop a bad leak.
5. You or your employer must call the National Response Center when any of the following occur as a direct result of a HazMat incident, EXCEPT:
black ice makes the road look wet.
spillage occurs.
a person is killed.
6. When checking the engine compartment in a vehicle inspection, you should check all of the following except:
Coolant level in radiator
Spring hangers
Engine oil level
7. When driving a 60-foot truck at 50 mph, your minimum following distance should be:
6 seconds
7 seconds
5 seconds
8. Passive railroad crossings:
require drivers to decide if there is sufficient clear space to cross safely.
have a traffic control device installed at the crossing to regulate traffic.
do not require you to recognize the crossing.
9. To obtain the HazMat endorsement, you must pass a ________ background check.
Law Enfrocement Agency
Transportation Security Administration
Local Department of Security
10. If your vehicle is hydroplaning, you should:
speed up.
stay off the brake.
put the vehicle in reverse.
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Tanker Test - IA CDL

Number of questions: 20
Correct answers to pass:16
Passing score:80%
Number of questions: 20
Correct answers to pass:16
Passing score:80%
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