Colorado CDL Practice Test 2025 - Free Commercial Driver’s License Practice Questions and Study Guide

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Question: 1 / 400

What should be done before driving down a hill with a loaded truck?

Switch to cruise control

Apply brakes continuously

Shift to a lower gear to control speed

Shifting to a lower gear before driving down a hill with a loaded truck is crucial for maintaining control over the vehicle. When faced with a downhill descent, a loaded truck’s natural weight can lead to excessive speed if the driver relies solely on brakes to slow down. By shifting to a lower gear, the engine helps to manage and reduce speed through engine braking. This method not only keeps the truck's speed at a safer level but also lessens the risk of brake overheating, which can occur if brakes are applied continuously.

Utilizing a lower gear is effective because it allows the engine to take some of the load off the braking system, helping to maintain control of the vehicle as it descends. This practice is essential in ensuring safety when driving loaded trucks downhill, preventing potential accidents caused by loss of control.

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Speed up to avoid losing momentum

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