Start FREE CDL Training Test #5 Iowa (IA) 2016 Now:
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Which of these is true about driving in a tunnel?
When should you use your horn?
What should be the thread depth on front steering wheels tires?
Your vehicle will be put out of service if ____ or more leaves in any leaf spring are missing.
Brake drums (or discs) must not have cracks longer that ___ the width of the friction area.
What should you do when you are driving a heavy vehicle and must exit a highway using an off-ramp that curves downhill?
Which of these rigs have more chances to “off-track” while making turn?
How much space in front of you do you need when driving on a highway?
Medicine used to treat the common cold:
Which of these you should NOT do in an emergency situation?
The primary cause of fatal crashes is:
Which of the actions below you should NOT do if a car suddenly cuts in front you creating a hazard?
What should you do when you see a hazard in the roadway ahead of you?
What should you do if your brakes fail on a downgrade?
When should you always turn on your emergency four-way flashers?
How often should brake adjustment be checked?
Which statement is true about mirror adjustment?
By how much do you need to reduce your speed when driving a snow packed road?
What does the bridge formula do?
Which of these is true about hours of service?
Which of these is true about the use of drugs while driving?
Which of these is true about proper use of a steering wheel?
When do you need a helper to back up your vehicle?
To avoid an accident you moved to the shoulder. To return to the road:
Which of these would NOT help if windshield is covered with ice?
Heavy vehicles often move slower than others. Which of these is NOT a good rule to follow while driving a heavy vehicle?
Why tourists may be a hazard?
What keeps an engine cool in a hot weather driving?
When a vehicle is loaded with very little weight on the drive axle this may cause:
What should you do if your vehicle catches a fire while you are driving?
When should turn signals be used?
When driving a commercial vehicle with a height over 13 feet, you should:
When should you test your parking brake?
When going down a long steep downgrade you should:
Controlled braking is:
Which of these is not brake check you normally do during your walk-around inspection?
One can recognize hazardous materials by looking on the container: