Practice question

Under PennDOT CDL Manual Section 5, what is the proper response to an apparent total loss of service brakes on a downgrade?

Shift into neutral and coast
Downshift to maximum engine braking, sound the horn, flash lights, use any retarder, and look for a runaway truck ramp or another escape path
Pull the parking brake fully
Speed up to outrun the grade

Answer: B — Downshift to maximum engine braking, sound the horn, flash lights, use any retarder, and look for a runaway truck ramp or another escape path

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