Home / Yukon / Questions / Rules of the Road Rules of the Road Report Engine braking on Yukon long downgrade: A Damages engine B Controls speed and prevents service-brake overheating C Drains battery D Manual only Show Answer & Explanation Correct Answer: B. Controls speed and prevents service-brake overheating Continuous service-brake causes fade. Previous Next More Rules of the Road Questions Yukon Learner driver BAC limit: Typical minimum time in Yukon Novice stage before Full: Minimum time in Yukon Learner stage before road test: Minimum age for Yukon Learner permit: Yukon Graduated Driver Licensing (GDL) stages are: Often Missed All Yukon Questions Smart Practice Mock Exam Road Signs Guide