CDL Practice Test Results

Question 1
26% answer correctly
Converter dollies:
All of these are true
Often do not have spring brakes
They have little braking power
Usually require a fifth wheel converter
Question 2
76% answer correctly
For air brakes, the cut-out level is:
The minimum air pressure for the air storage tanks
The level at which the air compressor will start pumping air into the air storage tanks
The average air pressure maintained in the air storage tanks
The level at which the air compressor will stop pumping air into the air storage tanks
Question 3
52% answer correctly
A C rated fire extinguisher is designed for what type of fires?
Wood, paper and cloth fires only
Electrical fires and burning liquids only
Gasoline and oil fires only
All fires