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