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