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