2.15 & 2.16 Railroad-highway xings/ Mountain driving

  1. 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
  2. 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.
  3. 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.
  4. 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.
  5. How long does it take for a typical tractor-trailer unit to clear a double track?
    15 seconds.
Card Set
2.15 & 2.16 Railroad-highway xings/ Mountain driving
Test your knowledge - Section 2.15 & 2.16 http://apps.dmv.ca.gov/pubs/comlhdbk/comlhdbk.pdf