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Idaho CDL Permit Test - Tank

Number of questions: 20
Passing score: 16
Directions: 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 Idaho Commercial Driver’s License 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.
You have made error so far
Passing grade —
4 or fewer errors
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1.
If you realize you may be running late to your destination, you should:
Speed up.
Get upset.
Deal with it and drive at a safe speed.
2.
The trailer hand valve:
Should always be used for parking.
Should only be used for parking on a downgrade.
Should never be used for parking.
3.
In hot weather, spots on the pavement where tar is bleeding:
Are very slippery.
Offer the same amount of traction as the rest of the roadway.
Offer more traction than the rest of the roadway.
4.
How much water must be present for a vehicle to hydroplane?
Usually several inches
A good amount, such as a large puddle
A small amount
5.
You will often have to drive your vehicle under bridges and overpasses. If approaching such an opening, you should:
Assume the posted clearance height is accurate.
Assume the posted clearance height is inaccurate.
Measure the height of the opening before proceeding.
6.
Load hazardous materials:
Near heat sources.
Away from heat sources.
Away from shadows.
7.
What is the average driver’s reaction time?
1/16 of a second
1/8 of a second
3/4 of a second
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