Ontario Z Endorsement Knowledge Exam (Air Brake) - 02 1 / 20 If the connection port is _______, you will require a long stroke brake chamber. Triangle Hexagonal Round Square 2 / 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 3 / 20 How often the air tanks should be drained? Weekly Monthly Daily Never 4 / 20 If you cross connect the air lines to the trailer, what may happen? Air loss Service brakes will not function properly Any or All of these Spring brakes will not release 5 / 20 To test the leakage of the air brake chamber, ____________ . air tanks should be empty both brakes released spring brakes should be released and service brakes should be applied. apply both brakes 6 / 20 To test the air compressor, ______. air tanks should be empty truck should be in reverse gear the engine must be off truck must be moving 7 / 20 Brake pushrod stroke will ______ after your brakes wear. Decrease Any of these Increase not change 8 / 20 Which brakes are applied to send air into the air brake chamber? Both Spring brakes Service brakes None 9 / 20 What will you do if Low Air Warning device is activated on the road? Inform the company after finishing the trip Keep moving slowly Pull out and stop immediately Keep driving at the same speed 10 / 20 What is the use of alcohol evaporator? to prevent freezing of an air brake system to stop rust to stop corrosion to stop air leak 11 / 20 What do you check while inspecting brake drums? Date of expiry Crakes and Holes Moisture Rust 12 / 20 What should be the minimum air pressure to perform the air brake test? 55 PSI 120 PSI 150 PSI 90 PSI 13 / 20 How to test trailer's spring brakes in easy way? Using chokes Apply tractor brakes Disconnect airlines Pull out the trailer supply valve. 14 / 20 ______ is measured to determine the size of the brake chamber. The engine size The length of the pushrod Tire tread The diameter of its clamp. 15 / 20 Which of these is not the type of brake system? Wedge Brakes 'S' Cam Brakes Disc Brakes 'V' Brakes 16 / 20 _______ is the part of the disc brake system. Rotor Air dryer Brake chamber S Cam 17 / 20 When you perform coupling then how many air lines are connected with the trailer? Four Three One Two 18 / 20 To avoid moisture in the brake system, ______ tank should be drained first. Service Small Any Supply 19 / 20 To perform the air brake test, vehicle should be parked at ______ . in the garage uphill downhill level surface 20 / 20 Minimum governor cut out is ____ PSI. 100 110 145 120 Your score is 0% Restart quiz
