Ontario Z Endorsement Knowledge Exam (Air Brake) -04 1 / 20 A trailer with a spring brake priority system will release _______ Both brakes at the same time Spring brake first Service brake first No brakes 2 / 20 When the vehicle is in operation, air pressure should not drop below _____ ? 90 PSI 55 PSI 80 PSI 120 PSI 3 / 20 What you will find on a long stroke size 24 brake chamber? A Tag Cover marking Square ports All of these 4 / 20 The brake pedal should be ______, while measuring the pushrod stroke. partially pressed not pressed fully pressed any of these 5 / 20 If the connection port is _______, you will require a long stroke brake chamber. Square Round Hexagonal Triangle 6 / 20 Who must take the proper inspection of the air brake system? Driver Safety manager MTO Company owner 7 / 20 How many air line connections a DD3 Safety Actuator has? Four One Two Three 8 / 20 What is a Gladhand? A Coupling device An air line A Tool Brake pedal 9 / 20 Air loss in 1 minute should not be more than 4 PSI 3 PSI 2 PSI 1 PSI 10 / 20 How often the air brakes must be inspected according to Highway Traffic Act? Bi Weekly Daily Yearly Monthly 11 / 20 The air dryer is installed between ______ and _______ . governor, brake chamber air compressor, service tank service tank, suppy tank air compressor, supply tank 12 / 20 What is the use of alcohol evaporator? to stop rust to stop corrosion to stop air leak to prevent freezing of an air brake system 13 / 20 What type of brakes are considered powerful? Service brakes Both are equal Spring brakes None 14 / 20 Minimum governor cut in is ____ PSI. 70 80 120 60 15 / 20 It is normal to see a small amount of oil from the drainage of ______ . Main tank Service tank Any tank Supply tank 16 / 20 If one tractor is pulling two trailers, air loss rate should not be more than __ PSI. 8 2 6 3 17 / 20 On which part of the brake system 'Brake linings' are attached? Brake chambers S Cam Brake shoes Rotors 18 / 20 When does the brake fade occur? By applying frequently on downhills In winter By applying frequently when stopped While applying on uphills 19 / 20 What is the colour of the Service Line couplings? Green Red Yellow Blue 20 / 20 When air enters into ______, the pushrod stroke occurs. Engine Brake chamber Air Tanks Air dryer Your score is 0% Restart quiz
