Ontario Z Endorsement Knowledge Exam (Air Brake) - 02 1 / 20 How to test trailer's spring brakes in easy way? Using chokes Pull out the trailer supply valve. Apply tractor brakes Disconnect airlines 2 / 20 What will you do if Low Air Warning device is activated on the road? Pull out and stop immediately Keep driving at the same speed Inform the company after finishing the trip Keep moving slowly 3 / 20 To test the Tractor Protection Valve, disconnect the trailer service line and ________ Turn the engine off Apply the service brakes Press the accelerator Apply spring brakes 4 / 20 What should be the minimum air pressure to perform the air brake test? 150 PSI 55 PSI 90 PSI 120 PSI 5 / 20 How often the air tanks should be drained? Daily Weekly Monthly Never 6 / 20 To test the leakage of the air brake chamber, ____________ . apply both brakes air tanks should be empty both brakes released spring brakes should be released and service brakes should be applied. 7 / 20 Which of these is not the type of brake system? 'S' Cam Brakes 'V' Brakes Disc Brakes Wedge Brakes 8 / 20 To test the air compressor, ______. truck should be in reverse gear the engine must be off truck must be moving air tanks should be empty 9 / 20 __________ is not a part of the Disc Brake System. Brake Pads Piston Callipers Rotors 10 / 20 Brake pushrod stroke will ______ after your brakes wear. Increase Any of these not change Decrease 11 / 20 To perform the air brake test, vehicle should be parked at ______ . downhill level surface uphill in the garage 12 / 20 ______ is measured to determine the size of the brake chamber. The engine size The diameter of its clamp. The length of the pushrod Tire tread 13 / 20 What is the use of alcohol evaporator? to stop rust to stop air leak to stop corrosion to prevent freezing of an air brake system 14 / 20 If the connection port is _______, you will require a long stroke brake chamber. Hexagonal Round Triangle Square 15 / 20 When you perform coupling then how many air lines are connected with the trailer? Four Three Two One 16 / 20 Which brakes are applied to send air into the air brake chamber? Spring brakes Both Service brakes None 17 / 20 What do you check while inspecting brake drums? Moisture Date of expiry Crakes and Holes Rust 18 / 20 If you cross connect the air lines to the trailer, what may happen? Service brakes will not function properly Any or All of these Spring brakes will not release Air loss 19 / 20 _______ is the part of the disc brake system. S Cam Brake chamber Rotor Air dryer 20 / 20 To avoid moisture in the brake system, ______ tank should be drained first. Small Any Service Supply Your score is 0% Restart quiz
