1 air brakes use - Study guides, Class notes & Summaries

CDL Exam Questions & Answers 2024/2025 Prologue: Who is exempt from CDL? - ANSWERSFarmer, emergency vehicle, military vehicle, air carrier, seed cotton vehicle Prologue: the vehicle must pass a safety inspection that includes the following - ANSWERSCurrent liability insurance, headlamps (bright and dim), two tail lamps, two stop lamps, turn signals, horn, inspection certificate, exhaust system, license plate (2), windshield wiper, rearview mirror, safety belts, clearance lamps, side mark...

Texas Driver's Ed – Practice Exam (Latest 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A Q: Which sign tells you to slow down because you are approaching a double curve? Answer: The road curves one way (right) and then the other way (left). Slow down, keep right, and do not pass. Q: What does a "Do Not Pass" sign mean? Answer: Do not pass other vehicles. Q: Which sign tells you to keep in the right-hand lane when driving slow? An...

CDL Air Brake Practice Test Questions with Verified Answers The parking or emergency brake on a heavy vehicle can only be held in position by something that cannot leak away, like: a. Fluid pressure b. Spring pressure c. Air pressure d. Any of the above b. Spring pressure A straight truck or bus air brake system should not leak at a rate of more than __ psi per minute with the engine off and the brake released. a. 1 b. 2 c. 3 d. 4 c. 3 Your vehicle has dual air brake ...

he parking or emergency brake on a heavy vehicle can only be held in position by something that cannot leak away, like: a. Fluid pressure b. Spring pressure c. Air pressure d. Any of the above b. Spring pressure A straight truck or bus air brake system should not leak at a rate of more than __ psi per minute with the engine off and the brake released. a. 1 b. 2 c. 3 d. 4 c. 3 Your vehicle has dual air brake system. If low air pressure warning comes on for the secondar...

CDL Combination Vehicle Practice Test Questions & Answers Latest Updated 2024/2025 (100% Correct) You supply air to the trailer tanks by: A. pushing in the trailer air supply valve B. pulling out the trailer air supply valve C. connecting the service air line 2. Loss of air pressure in the emergency line causes: A. the relay valves to close B. an increase in air pressure to the service line C. the trailer's emergency brakes to come on 3. A tractor with a __ trailer requires the shortest...

CDL Air Brakes | Study Guide ( Updated 2024 ) Complete Questions & Answers (Solved) 100% Correct 1. Oil and water usually collect in compresed air tanks.Ifyou do not have an automatic tank drain, when should you drain the air tanks? Answer After every working day 2. Why drain water from the compressed air tanks? Answer: Water can freeze in coldweather and cause brake failure. 3. The air brake system for a straight truck or bus should not leak at a rate of more than psi per minute with...

You are coupling a semi-trailer to your tractor but have not yet backed under, the trailer is at the right height when: - It will be raised slightly when the tractor is backed under it. You should not back a tractor under a trailer until the whole air system is: - At normal pressure. Which part of the kingpin should the locking jaws close around? - The shank. When you get ready to back under the semi-trailer you should line up: - Directly in front of the trailer. How should you test ...

CDL Combination Vehicle Practice Test Questions & Answers Latest Updated 2024/2025. You supply air to the trailer tanks by: A. pushing in the trailer air supply valve B. pulling out the trailer air supply valve C. connecting the service air line 2. Loss of air pressure in the emergency line causes: A. the relay valves to close B. an increase in air pressure to the service line C. the trailer's emergency brakes to come on 3. A tractor with a __ trailer requires the shortest amount of sto...

You supply air to the trailer tanks by: A. pushing in the trailer air supply valve B. pulling out the trailer air supply valve C. connecting the service air line 2. Loss of air pressure in the emergency line causes: A. the relay valves to close B. an increase in air pressure to the service line C. the trailer's emergency brakes to come on 3. A tractor with a __ trailer requires the shortest amount of stopping distance. A. empty B. lightly loaded C. fully loaded 4. Which of these sta...

NC Permit Practice Test 2023 A driver license is required for the following? A. Sitting in the driver's seat of a car while the engine is running. B. Steering a car while it is being pushed or towed by another vehicle. C. Both A and B. D. Neither A nor B. - Correct Answer-C If a law enforcement officer swears that a driver has refused a legal chemical test, the Division of Motor Vehicles must: A. Place the driver on probation. B. Wait for a court decision before taking action. C. Ass...