Download DZ TEST FULL STUDY GUIDE (300 QUESTIONS) 100% Correct Answers | Verified | Latest 2024 and more Exams Advanced Education in PDF only on Docsity!
DZ TEST FULL STUDY GUIDE (300 QUESTIONS)
100% Correct Answers | Verified |
Latest 2024 Version
Ensuring a vehicle is fit for highway use is the responsibility of...? The driver The owner The owner and the driver None of these - ✔✔C Safety defects, whether major or minor, must be reported to the operator...? Within one day As soon as possible Within one month Within one week - ✔✔B Is a vehicle is found to have critical defects under Ontario Regulation 512/97 three times within a two- year period, it will be impounded for how long? 15 days 30 days 20 days 60 days - ✔✔D Which of these is the only one that is not part of the circle check which must be part of your daily routine?
CB radio Exhaust system Windshield wipers Licence plates - ✔✔A All motor vehicles with a gross vehicle rating of more than 4500 kg must have how much tread depth on the front tires? 3 mm 2 mm 1.5 mm 2.5 mm - ✔✔A If you wish to drive a motor vehicle equipped with air brakes, in addition to the appropriate licence you also need what endorsement on it? X W Y Z - ✔✔D In order to be allowed to drive all types of tractor/trailer combination in Ontario, what class of licence do you need? Class C Class G Class A Class D - ✔✔C
When making a long trip, you are required to complete a vehicle inspection every...? 36 hours 48 hours 24 hours 12 hours - ✔✔C On a normal driving day, you cannot drive more than how many hours? 13 14 11 10 - ✔✔A How old must you be to apply for a truck driver's licence in Ontario? 17 19 21 18 - ✔✔D If you refuse to have your vehicle weighed when requested, you can be fined up to...? $20, $5, $10, $15,000 - ✔✔A
If a vehicle is found to have a critical defect, as defined by Ontario Regulation 512/97, it will be impounded, for a first offence, for how long? 20 days 15 days 5 days 10 days - ✔✔B Operators are responsible for having each of their vehicles and trailers officially inspected at what intervals? Once every 18 months Once a year Once every two years Once every six months - ✔✔B To test that the hookup of tractor and trailer is solid, you should perform the maneuver known as "hitting the pin." This involves...? Going forward only Going forward then reversing Reversing only Reversing then going forward - ✔✔D Which of these is the only activity not defined as being on duty time for the purposes of hours of service? Time spent loading the vehicle Time spent as a co-driver
Drive it to the nearest mechanic Report it at the end of the trip - ✔✔A Which of these is the only one exempt from hours of service regulations? Commercial motor vehicles over 4500 kg Public transport buses School buses Commercial motor vehicles leased for no longer than 30 days by an individual - ✔✔D When must you stop at a truck inspection station in Ontario? When you have driven more than five hours since your last inspection When you are more than 150 km from your start point Anytime it is open When you have driven more than 200 km since your last inspection - ✔✔C On combination tractor and trailers, the daily inspection of the couplings must include...? Fully separating the tractor and trailer A visual inspection Unplugging the supply lines - ✔✔A What is the most common reason for commercial vehicles being taken out of service? Broken springs Defective lights Insecure loads
Out of adjustment air brakes - ✔✔D In a normal driving day, you must be off duty for at least how many hours? 8 7 10 11 - ✔✔C A coupling is not secure if, between the upper plate and the fifth wheel, you can see...? Any gap More than a 25 mm gap More than a 15 mm gap More than a 35mm gap - ✔✔A The maximum height for any vehicle on Ontario's roads, including load, is...? 3.65 m 4.75 m 4.15 m 5.25 m - ✔✔C You can discover the size of brake chamber on your vehicle by...? Measurement Looking at the owner's manual Any of these methods
Square ports - ✔✔a The brake is out of adjustment when the pushrod stroke...? Is below the adjustment limit Any of these depending on circumstances Exceeds the adjustment limit Matches the adjustment limit - ✔✔c A size 36 brake chamber will be marked with...? Nothing A cover marking A square port A tag - ✔✔a When performing an inspection as part of the practical examination, you should...? Never speak to the examiner Inform the examiner of what you are testing at every step Only speak to the examiner if spoken to Only speak to the examiner if there is a problem - ✔✔b Marks made in measuring pushrod strokes must be...? Narrow and precise Wide and precise Narrow and approximate
Wide and approximate - ✔✔a Which of these is not part of the trailer brake subsystem circuit? Trailer couplers Air tanks Compressor Spring brake chambers - ✔✔c Which of these is not part of the air supply subsystem circuit? Spring brake Supply tank Air dryer Air compressor - ✔✔a Readjustments to manual slack adjusters may only be carried out by...? Certified technicians Truck drivers Any of theme Vehicle owners - ✔✔a Which of these items is it optional to bring to the practical test for airbrake certification? Protective headgear A stopwatch A chart of brake adjustment limits
Fully released - ✔✔b Which of these items do you not need to bring to your test if being tested for motor coaches? Wheel chocks or blocks A means of holding down the brake pedal A stopwatch Protective headgear - ✔✔d To inspect the low air warning device, the ignition key should be...? Any of these Turned on In the ignition but not turned on Away from the ignition - ✔✔b Before measuring the applied pushrod stroke, you should ensure the air pressure is above...? 421 kPa (61 psi) 721 kPa (104 psi) 621 kPa (90 psi) 521 kPa (75 psi) - ✔✔c The pushrod stroke should be inspected at least...? Once every three days Once a week Once a month
Once a day - ✔✔d Being able to demonstrate an applied pushrod stroke measurement method of inspection is compulsory for...? All truck drivers All long distance drivers All owner drivers All urban area drivers - ✔✔a Proper inspection of air brakes must be undertaken regularly by...? Company directors Drivers Government authorities Police officers - ✔✔b If a drain valve on any tank is not functioning properly, it must be...? Left open Any of these Repaired Left closed - ✔✔c The most common brake chamber size is...? 30 24 36
A triangular port - ✔✔b Automatic slack adjusters can only be repaired by...? The vehicle driver Certified technicians The vehicle owner Any of these - ✔✔b An air pressure buildup time test should be made with the engine idling between...? 400 - 600 RPM 500 - 700 RPM 700 - 1000 RPM 600 - 900 RPM - ✔✔d When checking a vehicle's brake drums, you should be looking out for...? Cracks All of these things Moisture Discoloration - ✔✔a The recommended way to test a trailer's automatic spring brakes is to...? Disconnect the trailer air supply line Pump the brake pedal Any of these
Pull out the trailer supply valve - ✔✔d The application of the automatic trailer spring brakes can be confirmed by...? Gently applying engine power Visual inspection Physically pushing the trailer Accelerating the vehicle hard - ✔✔a When testing the spring brakes on a towing vehicle and trailer, it is preferable to perform the test on...? Both vehicles The towing vehicle The trailer Either vehicle - ✔✔b Actual cut-out pressure must never be higher than...? 932 kPa (135 psi) 1000 kPa (145 psi) 972 kPa (140 psi) 902 kPa (130 psi) - ✔✔b Brake lining can be contaminated by...? Water Oil Grease and Oil
The engine idling in neutral - ✔✔b The low air pressure warning device is defective if it fails to activate at a minimum level of...? 480 kPa (69 psi) 280 kPa (40 psi) 180 kPa (26 psi) 380 kPa (55 psi) - ✔✔d The amount of moisture discharged from tanks other than the supply tank should be...? Less than that from the supply tank More than that from the supply tank The same as that from the supply tank Any of these - ✔✔a The discovery of a small quantity of oil is only no cause for concern if it comes from...? The second tank The third tank The supply tank The final tank - ✔✔c You should make sure that air tanks are securely attached to the vehicle by...? Pulling on them Any of these Tapping them
Looking at them - ✔✔a The drive belt of an air compressor should give slightly under...? A heavy blow Light hand pressure Finger pressure Firm hand pressure - ✔✔d A straight truck, tractor or bus must not lose air pressure with the brakes fully applied at a rate of more than...? 25 kPa (3.6 psi) per minute 28 kPa (4 psi) per minute 21 kPa (3 psi) per minute 17 kPa (2.5 psi) per minute - ✔✔c You should begin a test of the low air pressure warning device with the pressure above...? 421 kPa (61 psi) 621 kPa (90 psi) 721 kPa (104 psi) 521 kPa (75 psi) - ✔✔b Spring brakes should be tested by applying the brakes and...? Gently applying engine power in a low gear Sharply applying engine power in a high gear Gently applying engine power in a high gear
