CDL Air Brakes Practice Test Results

Question 1
56% answer correctly
You should be in the proper gear before starting down a hill because:
To keep the brakes cool
It`s difficult to change gears while going downhill
The use of brakes is only a supplement to the braking effect of the engine
To keep your speed under control
Question 2
72% answer correctly
Spring brakes and air brakes should __________ be used together.
Frequently
Always
Never
Sparingly
Question 3
50% answer correctly
A safety valve is installed:
On the last air tank connected to the air compressor
On every air tank connected to the air compressor
On the air compressor
On the first air tank connected to the air compressor