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