At what air pressure must the low air pressure warning signal come on?
Subject: Commercial Driver License Multiple Choice Quiz ( MCQ ) and Answer
Which of the following statements is true regarding front wheel braking?
Which of the following is the most common type of foundation brake?
What psi level is the safety relief valve set to open at?
What is the alcohol evaporator’s primary purpose?
What is the name of the device that pumps air into the air storage tanks?
What are the three types of brake systems used in a commercial vehicle air brake system?
What type of air do air brakes use?
Which device allows you to remove oil and water from the air brake systems?
What does it mean when the safety valve opens and releases air?
What should the air pressure loss be in a single vehicle with a fully charged air system?
In a combination vehicle, what should the air pressure loss be with a fully charged air system?
Where is compressed air stored?
Which of the following devices indicates how much air pressure you are applying to your brakes?
Which of the following devices can be used as the low air pressure warning signal?
What is a wig-wag?
What is a modulating control valve?
What does the Air Compressor Governor control?