In addition to checking the left side mirror, where should the driver of a vehicle look before leaving the curb? {Ans: The driver must glance over their left shoulder to verify the way is safe.}What is the prime factor which determines the amount of control the driver has over his vehicle in a curve? {Ans: The amount of traction the vehicle's tires have with the road surface}What action should the driver take when he is being overtaken by a smaller vehicle? {Ans: Help them complete their pass, reduce your speed if necessary.}What are the three steps a driver should take before backing a large vehicle? {Ans: 1. Step out of the vehicle and look at the backing area for hazards. 2. Check for clearances and obstacles above, below, to the sides, to the rear, and to the front of the vehicle. 3. Enter the cab, sound horn, and observe both mirrors while backing dead slow.}Why should you not signal another vehicle to overtake and pass you? {Ans: You may be encouraging a driver with limited experience to over-drive his/her ability.}What precautions should be taken when using a carbon tetrachloride or a CO2 type fire extinguisher?