Ontario Z Endorsement Knowledge Exam (Air Brake) -03 1 / 20 Minimum governor cut in is ____ PSI. 70 80 60 120 2 / 20 Air brake system converts _______ into ________ . moving vehicle energy, heat heat, mechanical energy compressed air, heat energy compressed air, mechanical 3 / 20 To test the low air pressure warning device, air pressure should be above _____ PSI? 100 90 60 75 4 / 20 The colour of the trailer supply valve knob is______ White Blue Yellow Red 5 / 20 What you will find on a long stroke size 24 brake chamber? All of these A Tag Square ports Cover marking 6 / 20 How often the air tanks should be drained? Daily Never Weekly Monthly 7 / 20 It is normal to see a small amount of oil from the drainage of ______ . Any tank Service tank Main tank Supply tank 8 / 20 ______ is not the part of the wedge brake system. Spiders Pushrods Drums Shoes 9 / 20 What type of brakes are considered powerful? None Spring brakes Both are equal Service brakes 10 / 20 When air pressure reaches _____ PSI to ____ PSI lower than the cut out pressure, governor must cut in. 30, 35 15, 25 40, 60 22, 25 11 / 20 If you don't have any trailer attached, your trailer supply valve should be _____? Pulled out Turned to left Pushed in Turned to right 12 / 20 Who must take the proper inspection of the air brake system? MTO Company owner Driver Safety manager 13 / 20 Air loss in 1 minute should not be more than 2 PSI 4 PSI 1 PSI 3 PSI 14 / 20 What can Brake Fade cause? Nothing Air drop Brake seize Brake failure 15 / 20 Which vehicles have mostly DD3 Safety Actuators? Bikes Buses Trucks Cars 16 / 20 How often the air brakes must be inspected according to Highway Traffic Act? Yearly Daily Bi Weekly Monthly 17 / 20 _______ is the part of the disc brake system. Brake chamber Air dryer S Cam Rotor 18 / 20 A trailer with a spring brake priority system will release _______ No brakes Both brakes at the same time Spring brake first Service brake first 19 / 20 The air dryer is installed between ______ and _______ . service tank, suppy tank air compressor, supply tank governor, brake chamber air compressor, service tank 20 / 20 The air, in the air brake system, first enters into the ______. Dry tank Service tank Supply tank Air compressor Your score is 0% Restart quiz