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CDL Quiz 5

1. Which of these statements is true about other drivers?
Short-term or daily rental truck drivers are often not used to the limited vision and pose a hazard.
Drivers using turn signals can be trusted to turn in the direction they indicate.
Mail or delivery truck drivers do not pose a hazard.

2. What is the new blood alcohol concentration (BAC) for commercial drivers to be considered intoxicated when driving a commercial vehicle?
0.060
0.04
0.02

3. What should you do if your vehicle hydroplanes?
Accelerate slightly.
Release the accelerator.
Countersteer hard.

4. Blood alcohol concentration (BAC) is calculated by measuring a person’s
Body weight.
Height.
Age.

5. With a BAC of __, most people lose consciousness, and some die.
0.1
0.16
0.4

6. If you do not have a CB radio, what is the first thing you should do at an accident scene?
Protect the accident scene.
Clear the area.
Flag down help.

7. Which of these is a good rule to follow when using a fire extinguisher?
Stay downwind of the fire.
Keep as close to the fire as possible.
Aim at the base of the fire.

8. You are driving a truck with a manual transmission. While driving on an uphill grade, you have to stop the truck on the shoulder. Which of these is a good rule to follow when putting it back in motion up the grade?
Let the vehicle roll straight backward a few feet before you engage the clutch.
Keep the clutch slipping while slowly accelerating.
Use the parking brake to hold the vehicle until the clutch engages.

9. Tie-downs must be of the proper type and strength. The combined strength of the cargo tie-downs must be enough to lift
One and one-half times the weight of the cargo tied down.
Three times the weight of the cargo tied down.
Twice the weight of the cargo tied down.

10. You are driving a 40-foot vehicle at 35 mph. The road is dry and visibility is good. What is the least amount of space you should keep in front of your vehicle to be safe?
4 seconds
6 seconds
2 seconds

11. During a pre-trip inspection, you discover an exhaust leak or power steering leak. You should
Report the problem and make arrangements to use another vehicle.
Go home because you shouldn’t drive the vehicle this way.
Note the problem and continue your route.

12. Converter dollies built on or after March 1, 1998 are required to have anti-lock brakes. These dollies will have
A yellow malfunction lamp in the center of the dolly.
A Yellow malfunction lamp on the left side of the dolly.
A yellow malfunction lamp on the right side of the dolly.

13. If you go twice as fast, your stopping distance will increase by
Four times.
Two times.
Three times.

14. The tendency for long commercial vehicles to swing wide on turns is called
Hydroplaning.
Off-tracking.
Fishtailing.

15. You do not have a Hazardous Materials Endorsement on your commercial driver’s license. You are asked to deliver hazardous materials in a placarded vehicle. You should
Refuse to haul the load.
Haul the load but only to the nearest place where a driver with a Hazardous Materials Endorsement can take over.
Take the placards off the vehicle.

16. You are driving a vehicle that can be driven safely at 55 mph on an open road. Although the speed limit is 55 mph, traffic is heavy, moving at 35 mph. The safest speed for your vehicle in this situation is
35 mph.
45 mph.
40 mph.

17. It is important to shift gears correctly to keep
Control of the vehicle.
The engine oil flowing.
The engine warm.

18. When driving a commercial vehicle with a height over 13 feet, you should
Assume all clearances are high enough.
Not worry about the height clearance as long as you stay on state or federal highways.
Stop and make sure if you aren’t certain that a clearance is high enough.

19. Which of these statements is true about drugs?
The use of alcohol or drugs can lead to a collision and/or an arrest.
Certain prescription drugs are allowed to reduce fatigue.
Driver can use any prescription drug while driving.

20. How can you avoid the effects that wet brakes can cause?
Gently apply the brakes, increase engine rpm, and cross the water while keeping light pressure on the brakes.
Slow down and place the transmission in low gear.
Both of these answers are correct.