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