Try a DVSA LORRY Theory Test Revision Question (6 of 104)

Q: Air-brake systems usually have two lines. Which additional line is fitted on a three-line system?
A: Emergency
A: Service
A: Electrical
A: Auxiliary
Learn your theory >>
If you're looking for an earlier driving test, our driving test availability checker can help. Join today and get driving test cancellations.

Already passed your theory test?

Don't wait months to take your driving test. Find driving test cancellations now with our driving test cancellation checker.

Find driving test cancellations now

Try our free driving test cancellation checker