181. Which of these is true about mirror adjusting?
You should adjust your mirrors before starting the trip.
182. When you are driving on a snow packed road, you should reduce your speed by:
1/2
183. The bridge formula:
Permits less maximum axle weight for the axles that are close together.
184. Which of these is true about hours of service?
You should allow enough hours to rest.
185. Which of these is true about the use of drugs while driving?
Prescription drugs are allowed if a doctor says they will not affect the driving ability.