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