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