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