What affects fuel efficiency when planning a driving route?

Prepare for the ICBC Commercial Vehicles Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

When considering factors that affect fuel efficiency when planning a driving route, the distinction between flat and mountainous routes plays a critical role.

Flat routes generally allow for smoother driving and less strain on the vehicle's engine, leading to better fuel efficiency. Vehicles can maintain a steady speed on level ground without the need for frequent acceleration or deceleration, which can consume more fuel. Conversely, mountainous routes add significant grades and elevation changes that require the vehicle to work much harder, especially when climbing steep inclines. This increased workload translates to higher fuel consumption due to the engine exerting more energy, resulting in less efficient fuel use.

Other factors, while impactful, do not directly compare to the significant effects caused by topography in influencing how efficiently a vehicle can operate on a given route.

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