Ontario Z Endorsement Knowledge Exam (Air Brake) -01 1 / 20 Which type of brake system has "S" Cam? Disc brakes Drum brakes None All brakes systems 2 / 20 If your truck is equipped with manual slack adjusters, readjustment can be done by Certified Technician Anyone Safety manager Truck driver 3 / 20 What is the use of the Spring Brakes? None for parking and an emergency. To stop at the traffic light To prevent from skidding 4 / 20 What things you check while testing Air Brake chambers? All of the above Slack adjustment Cracks Holes 5 / 20 What do you check while inspecting brake drums? Rust Date of expiry Moisture Crakes and Holes 6 / 20 _________ brake system doesn't have pushrod. None of these Hydraulic brakes Wedge brakes Drum Brake 7 / 20 Which vehicles have mostly DD3 Safety Actuators? Cars Trucks Buses Bikes 8 / 20 What is the function of the governor in air brake system? keep the engine cool remove the moisture apply the brakes regulate air pressure 9 / 20 Who can repair the Automatic Slack Adjusters? Driver Safety Manager Certified Technician Owner Operator 10 / 20 ______ in the brake system causes brake linings contamination. Air None Grease and oil Water 11 / 20 When air pressure reaches _____ PSI to ____ PSI lower than the cut out pressure, governor must cut in. 15, 25 30, 35 40, 60 22, 25 12 / 20 The most common brake chamber size is ______. 24 36 20 30 13 / 20 When air pressure drop to ____ PSI, spring brakes will start to apply. 55 90 60 35 14 / 20 Where you can find the safety valve? On the dashboard Air Tank Brake chamber S Cam 15 / 20 When uncoupling, trailer supply valve must be ______ Pulled out Removed None of these Pushed in 16 / 20 Maximum governor cut out is ____ PSI. 130 145 120 100 17 / 20 On which part of the brake system 'Brake linings' are attached? Rotors Brake shoes S Cam Brake chambers 18 / 20 The brake pedal should be ______, while measuring the pushrod stroke. fully pressed partially pressed any of these not pressed 19 / 20 What is a caging bolt used for? To adjust the brakes To protect the air lines To disable the brake chamber To give more power to the brake chamber 20 / 20 What can different size chambers on same axle cause? No braking low mpg All of these Imbalanced braking Your score is 0% Restart quiz
