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