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