Air Brakes Test | CDL Practice Test
CDL Air Brakes Test 1
While air is abundant, albeit polluted these days . . . the abundance of Hydraulic fluid is not plentiful. Many trucks utilize air-brake systems; hence, they have no need to rely on hydraulic fluid, within its braking system. Since the operation of these heavy vehicles can be dangerous, safety is extremely important! This instructional review has been made by a teacher of nearly 20 years. Having a thorough understanding of your commercial vehicle, and knowing your vehicle's braking system; and how it functions is why this review is here for you to utilize and benefit from.