Illinois cdl Tank - Test 1
Number of questions: 20
Passing score: 80%
Acceptable number of errors: 4
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. To pass, the applicant must answer at least 16 questions correctly. Test questions come from the Illinois Commercial Driver’s License Study Guide. Questions come from chapters covering: Driving Safely, Tank Vehicles and Combination Vehicles. The Tank endorsement can be used with the Class A, B or C CDL.
To DMV Handbooks15. A loss of air pressure in the emergency line will cause:
The service brakes to activate.
The tractor protection valve to close.
The rear trailer to detach from the combination.
The suspension springs to extend.