CDL

CDL practice questions, page 6 of 10, with answer review and explanations.

Question 26

Why put the starter switch key in your pocket during the pre-trip inspection?

  1. So you don't lose it.
  2. You will need it to inspect the trailer.
  3. So no one moves the vehicle while you are inspecting underneath it.
  4. You will need it to open the side box.

Question 27

If stopped on a hill, how can you start moving without rolling back?

  1. Leave the trailer brakes on and drag the tires releasing the brake after you are moving forward.
  2. Put blocks behind the tires.
  3. Increase Engine rpm's and let the clutch out quickly.
  4. Partly engage the clutch before you take your right foot off the brake.
  5. None of the above

Question 28

Retarders keep you from skidding when the road is slippery.

  1. True
  2. False

Question 29

How far ahead does the manual say you should look while driving?

  1. 5 to 8 seconds, at highway speeds its about an 8th of a mile.
  2. 9 to 12 seconds, at highway speeds its about a quarter of a mile.
  3. 12 to 15 seconds, at highway speeds its about a quarter of a mile.
  4. 15 to 20 seconds, at highway speeds its about a half of a mile.

Question 30

If you are driving a 30 foot vehicle at 55 mph, how many seconds of following distance should you allow?

  1. 2 seconds
  2. 3 seconds
  3. 4 seconds
  4. 5 seconds