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