68. You are driving on a two-lane road. An oncoming driver drifts into your lane and is headed straight for you. Which of these is most often the best action to take?

a. Hard braking.
b. Steer into oncoming lane.
c. Steer to the right.
d. Steer onto the left shoulder.

69. Which of these statements about engine overheating is true?

a. If your engine overheats within 20 miles of the end of your trip, you should complete the trip and then check the problem.
b. You should never shut off an overheated engine until it cools.
c. You should never remove the radiator cap on a pressurized system until the system has cooled.
d. Antifreeze is not needed when the weather is warm.

70. You are driving a heavy vehicle with a manual transmission. You have to stop the vehicle on the shoulder while driving on an uphill grade. Which of these is a good rule to follow when putting it back in motion up the grade?

a. Keep the clutch slipping while slowly accelerating.
b. Use the parking brake to hold the vehicle until the clutch engages.
c. Let the vehicle roll straight backwards a few feet before you engage the clutch.
d. let the vehicle roll backwards a few feet before you engage the clutch, but turn the wheel so that the back moves away from the roadway.

71. Which of these is a good thing to do when steering to avoid a crash?

a. Apply the brakes while turning.
b. Steer with one hand so that you can turn the wheel more quickly.
c. Don't turn any more than needed to clear what is in your way.
d. Avoid countersteering.

72. You are checking your wheels and rims for a pre-trip inspection. Which of these statements is true?

a. Rust around wheel nuts may mean that they are loose.
b. Cracked wheels or rims can be used if they have been welded.
c. A vehicle can be safely driven with one missing lug nut on a wheel.
d. Mismatched lock rings can be used on the same vehicle.

73. You do not have a Hazardous Materials on your Commercial Driver's License. You are asked to deliver hazardous materials in a placarded vehicle. You should:

a. refuse to haul the load.
b. take the placards off the vehicle.
c. haul the load but only to the nearest place where a driver with a Hazardous Materials can take over.
d. haul the load, but file a report with the Department of Transportation after the trip.

Answers: (68)c   (69)c   (70)b   (71)c   (72)a   (73)a