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