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What factors determine your selection of a “safe” speed when going down a long, steep downgrade?
- Total weight of the vehicle and cargo.
- Length of the grade.
- Steepness of the grade.
- Road conditions and weather
Why should you be in the proper gear before starting down a hill?
- You will not be able to shift into a lower gear once you are going.
- Forcing an automatic transmission into a lower gear at high speed could damage the transmission.
Describe the proper braking technique when going down a long, steep downgrade.
- Apply the brakes just hard enough to feel a definite slowdown.
- When speed has been reduced to approximately five mph below your "safe" speed, release the brakes.
- Repeat when speed has increased to your "safe" speed.
What type of vehicles can get stuck on a railroad-highway crossing?
Low slung units, car carrier, moving van, possum belly livestock trailer, single axle tractor pulling a long trailer with it's landing gear set to accommodate a tandem axle tractor.
How long does it take for a typical tractor-trailer unit to clear a double track?