Ontario Z Endorsement Knowledge Exam (Air Brake) -05 1 / 20 The air, in the air brake system, first enters into the ______. Dry tank Service tank Supply tank Air compressor 2 / 20 If the connection port is _______, this will be a short or regular stroke chamber. Hexagonal Square Round Triangle 3 / 20 When pushrod exceeds the specified limit then brakes must be _____ heated Adjusted Changed Lubricated 4 / 20 While performing pushrod stroke measurement, _______. engine should be off truck must be moving engine should be on trailer must be detached 5 / 20 If the connection port is _______, you will require a long stroke brake chamber. Triangle Square Round Hexagonal 6 / 20 What will you do if Low Air Warning device is activated on the road? Pull out and stop immediately Keep driving at the same speed Keep moving slowly Inform the company after finishing the trip 7 / 20 Tractor protection valve stops the air supply of ______ when closed. Spring brakes Tractor brakes Trailer service line All brakes 8 / 20 If pressure drops below ____ PSI, trailer supply valve will automatically close and stop the air supply to the trailer 60 50 90 45 9 / 20 Which brakes do you apply to perform 'Tug Test' on trailer? Tractor brakes Spike Brakes No brakes Any Brakes 10 / 20 What is the colour of the Service Line couplings? Red Blue Yellow Green 11 / 20 Trailer service brakes can be operated by_____? Neither of these Brake pedal Hand valve Hand valve or Brake Pedal 12 / 20 To perform the air brake test, vehicle should be parked at ______ . downhill level surface uphill in the garage 13 / 20 Where are air brake chambers attached? On air tanks On rear wheels only On front wheels only On each wheel 14 / 20 When the air pressure goes on or below _____, low air pressure warning device must activate. 30 PSI 55 PSI 80 PSI 90 PSI 15 / 20 Air pressure must go from 85 PSI to 100 PSI within 2 minutes, while engine running at ____RPM to ____ RPM. 1000, 1200 500, 700 600, 900 1200, 1500 16 / 20 From where the air compressor takes power? Engine Wheels Brakes Battery 17 / 20 If air line has rubbing marks but there is no air leak then apply duct tape on it note down in the log book and move drive for one day replace it before moving 18 / 20 The brake pedal should be ______, while measuring the pushrod stroke. any of these not pressed fully pressed partially pressed 19 / 20 Trailer brake system first supplies air to _______ Depends upon the priority set by manufacturer To all the brakes equally Spring brakes Service brake 20 / 20 How often the air tanks should be drained? Weekly Monthly Never Daily Your score is 0% Restart quiz
