CDL-Combination Vehicles Test
CDL-Combination Vehicles Test
CDL-Combination Vehicles Test Study Questions and Answers Graded A
Before backing, check behind your vehicle by - Getting out of the cab
You are testing the air leaking rate of a combination vehicle. The system is at full pressure, the engine is off, and the brakes are off. The leakage rate should be less than __ per minute. - 3 psi
The air leakage rate in a combination vehicle should not be more than __ per minute with the engine off the brakes on. - 4 psi
There are two things a driver an do to prevent a rollover. They are:
- Keep the weight in your truck as close to the ground as possible. and 2. - Go slow
around turns
Which one of the following statements is true? - Bobtail tractors take longer to stop than loaded combination vehicles.
In normal driving some drivers use the hand valve before the brake pedal to prevent a jackknife. Which of the statements is true? - It should not be done.
When should you use the hand valve to park a combination vehicle. - never
Airlines on a truck are often color coded so you will not mix them up. If they are colored, the emergency line will be ___ and the service line ___ - Emergency line - red Service line - blue
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