FREE Delaware CDL Practice Test - CDL Knowledge Test (2024)

1. If you have convex mirrors, be aware that:

in a convex mirror objects appears larger than they really are.
everything appears smaller in a convex mirror than it would if you were looking at it directly.
objects seem closer than they really are.
objects may appear to be faster than they really are.

2. To prevent drowsiness before a trip, drivers should:

get adequate sleep.
avoid medications that cause drowsiness.
avoid scheduling trips for the middle of the night.
All of the above.

3. The minimum tire tread depth for front tires is:

4. If driving a new vehicle, you should familiarize yourself with the controls and equipment:

before you start driving.
after pulling into a service station.
within the first 50 miles.
as you drive.

5. If a vehicle is equipped with ABS, when you start the engine:

the wheels will lock up.
the trailer emergency brakes will come on.
the ABS indicator light on the dash should come on and then turn off.
the spring brakes will come on.

6. Hazardous materials can be recognized by looking at the container's:

7. A vehicle inspection should be done in the same order each time:

so you are less likely to forget something.
because it's much quicker.
because it is required by law.
because the report must be written in that order.

8. With a dual air brake system:

one system is the main braking system while the other is a back-up system.
each system shares air tanks.
each system shares the same lines and hoses.
each system has its own air tanks, hoses and lines.

9. Confused drivers can be very hazardous. Clues to confusion include:

changing lanes for no apparent reason.
hesitation.
using brakes often.
All of the above.

10. The ABS malfunction lamp on the instrument panel is:

CDL GENERAL KNOWLEDGE TEST (DE) - PRACTICE TEST