How should you use ether when the engine is hard to start?
Ontario Class D (DZ) Practice Test 7
40 questions on fuel-efficient driving, hov and branding, daily inspection and defects, class d road test, night, weather and emergencies, weights, cvor and documents and more.
- No sign-up
- Every answer explained
- Independent · not a government site
- Set 7 of 7
- 40 questions
- Instant feedback
All 40 questions in this test
Every question and its answer choices. The correct answers and explanations appear when you take the test above.
How should you use ether when the engine is hard to start?
- Freely, every start
- Only with the engine running
- Sparingly
- Never in winter
When is a low brake fluid level a major defect?
- Never; low fluid is always minor
- When it is under three-quarters full
- Under one-quarter full
- When it is at exactly half full
Your test route has no expressway. What may the examiner ask you to do?
- Come back another day
- Drive to the nearest expressway
- Skip that part with no score
- Describe what you would do there
The road ahead looks black and shiny on a cold day. What should you suspect?
- A fuel spill
- Black ice
- Clean dry pavement
- Fresh asphalt
Which document must a straight-truck driver carry and surrender on demand?
- The CVOR certificate or a true copy
- The driver's high school diploma
- The shipper's latest tax return
- The truck's original purchase contract
A pick-up tows a 5,000 kg trailer, but the pair weighs 10,500 kg in total. Which class applies?
- Class A
- Class AR
- Class D
- Class G
During the roadside stop, when do you take your foot off the service brake?
- Before stopping completely
- As soon as you stop moving
- After the parking brake is set
- Before shifting to neutral
Instead of flares or lanterns, which warning devices are acceptable?
- Portable reflectors
- Cardboard signs
- Spare tires
- Orange traffic vests
When may you leave a truck stopped on the roadway itself?
- For up to one hour at most
- Only on weekends and holidays
- Any time the flashers are on
- If immovable, or seen 125 m each way
Whose name must appear on a driver's daily log besides their own?
- The insurance broker's name
- The receiver's warehouse manager
- The truck's manufacturer
- The operator and co-drivers
A pedestrian starts crossing on a walk signal and the hand symbol appears. Who has the right-of-way?
- Turning vehicles
- The pedestrian still does
- Whoever moves first
- Trucks only
Which gear should you use when first moving off with a load?
- Reverse, then first
- The lowest appropriate gear
- Any middle gear
- The highest gear
Following too closely behind a small car in a truck can cause what?
- Nothing, if you stay alert
- The driver may feel intimidated
- A shorter stopping distance
- Better fuel economy for both
Your truck has lane-keeping assist. Can you still be charged with careless driving?
- Yes, you must stay in control
- No, the system is responsible
- Only on city streets
- Only at night
Which item is on the daily inspection list?
- Hydraulic brake system
- Radio and speakers
- Cup holders
- Seat covers
Which type of fire involves live electrical equipment?
- Class D
- Class C
- Class B
- Class A
Several trucks leave a rest stop together. How should they enter the highway?
- Spaced out at intervals
- All at once to save time
- Side by side in two lanes
- Close together as a convoy
What do EDR signs along a road mark?
- Electric vehicle charging points
- Express delivery truck routes
- A detour around a highway closure
- Exits reserved for dump trucks
Which vehicle is exempt from CVOR requirements?
- A 30-passenger bus
- A US-plated tractor in Ontario
- A 12,000 kg dump truck
- A motor home
Why do some municipalities post signs about engine brakes?
- They restrict engine braking
- They require engine braking
- They lower the speed limit
- They ban trucks entirely
How often are Ontario's provincial HOV lanes in effect?
- In the summer months only
- At all times
- On weekdays only
- During rush hours only
How long can a train need to stop under full emergency braking?
- Up to 2 km
- About 500 m
- About 200 m
- About 50 m
Turning left at an island, what can hit a sign post if you do not watch it?
- Your roof lights
- The rear of your truck
- Your front bumper only
- Your side mirror only
What must a driver carry while transporting dangerous goods?
- A photo of the cargo taken at loading
- A printed copy of the DG regulations
- The employer's training certificate
- A letter from the local fire department
What kind of engine must a truck have for the speed-limiter rule to apply?
- A gasoline engine of any size
- Any turbocharged engine
- Electronic engine control
- A diesel engine over 400 hp
Your Class D renewal requires tests. Where do you renew?
- Online only
- At any bank
- At a DriveTest centre
- At a police station
A yellow sign advises trucks over 10 tonnes not to use a road. Is it a ban?
- Yes, a total ban
- Yes, with a $20,000 fine
- No, it is an advisory warning
- Yes, but only at night
You feel very sleepy. Which remedy works?
- Pulling over to sleep
- Opening the window
- Turning up the radio
- Drinking coffee and pushing on
Checking power-assisted hydraulic brakes, what do you do first with the engine stopped?
- Open the bleed screws
- Set the parking brake twice
- Hold the pedal down hard
- Pump the pedal several times
On some trucks, what may you need to do while releasing the clutch to move off?
- Add a little throttle
- Turn off the engine brake switch
- Press the service brake hard
- Shift back into neutral
Your Class D licence covers your dump truck. Which of these is it NOT valid for?
- Driving a 15,000 kg cube van
- Driving a loaded tandem dump truck
- Driving a car under Class G
- Riding a moped
With no insurance claim, who determines the brand for a badly damaged truck?
- The driver of the truck
- The police officer at the scene
- A Type 6 station mechanic
- Any licensed used-car dealer
On a straight truck, where may the annual inspection decal be placed?
- On the sidewall of the right front tire
- The centre of the rear bumper
- Lower left windshield or left of cab
- Inside the glove box, with the papers
You approach a stopped school bus from the front with its red lights flashing. What must you do?
- Stop at a safe distance
- Pass slowly on the right
- Stop only on two-lane roads
- Continue if no children are visible
How fast should you reverse during the backing test?
- Faster than idle speed
- As fast as is safe
- At a walking pace
- About 10 km/h
While waiting to turn left, how should you keep your front wheels?
- It does not matter
- Straight
- Turned fully left
- Turned slightly right
Your cargo could explode in a fire. What extra step should you take?
- Spray foam on the cab roof
- Stop traffic, keep people back
- Drive on to the nearest town
- Open the cargo doors to vent it
During the air-loss test, what range must system pressure be in?
- Below 60 psi
- Above the safety valve setting
- Between cut-in and cut-out
- Exactly 150 psi
How does the radius of the rear wheels' path compare with the front wheels'?
- It changes with speed only
- It is the same
- It is longer
- It is shorter
Your Class D test truck has hydraulic brakes. Must you bring a pushrod stroke gauge?
- Yes, on every Class D test
- No, that is for air brakes
- Only for the in-cab check
- Only if the truck is over 11,000 kg
All Ontario Class D (DZ) practice tests
- Ontario Class D (DZ) Mock Exam 1 – 40 QuestionsUntimed practice · answers explained
- Ontario Class D (DZ) Mock Exam 2 – 40 QuestionsUntimed practice · answers explained
- Ontario Class D (DZ) Mock Exam 3 – 40 QuestionsUntimed practice · answers explained
- Ontario Class D (DZ) Mock Exam 4 – 40 QuestionsUntimed practice · answers explained
- Ontario Class D (DZ) Mock Exam 5 – 40 QuestionsUntimed practice · answers explained
- Class D licence and requirementsWhat Class D covers (over 11,000 kg, towing up to 4,600 kg), the RV-restricted Class D, the licence class chart, age, medical and document requirements.
- Weights, CVOR and documentsGross, registered gross and manufacturer's weight ratings, size limits, CVOR, documents to carry, inspection stations and weigh scales, impoundment for critical defects and dangerous goods.
- Daily inspection and defectsThe Schedule 1 inspection every 24 hours, minor versus major defects, tires, wheels and steering lash, annual inspection decals and straight-truck defect limits for brakes, suspension and wheels.
- Brake checks: hydraulic and airTesting hydraulic brakes with and without power assist, brake fluid limits, and the straight-truck air checks: build-up, air loss of 3 psi, low-air warning, pushrod stroke and spring brakes.
- Cargo securement and loadsBalancing and tying down loads, re-inspection intervals, NSC Standard 10, rear overhang marking, oversize load flags and signs, and loading within licensed capacity.
About this practice test
How many questions are in Ontario Class D (DZ) practice test 7?
40 original multiple-choice practice questions covering fuel-efficient driving, hov and branding, daily inspection and defects, class d road test, night, weather and emergencies, weights, cvor and documents, class d licence and requirements, hours of service and logs, signs, signals and markings, engine, gears and braking technique, driver conduct and sharing the road, off-track, turns, clearances and backing, keeping your class d licence, brake checks: hydraulic and air. Each answer includes an explanation. This mixed practice set does not reproduce the official exam format or predict an official score.
Are the questions the same every time?
Yes. Practice test 7 always has the same 40 questions, so you can repeat it until you get them all right. The other 6 sets use different questions.
Are these real test questions?
No. The official question bank is not published. These are original questions written from the official handbook, which is what the real Ontario Class D (DZ) test is based on.