Can you write the Class 3 knowledge test before your Medical Examination Report is approved?
Manitoba Commercial Mock Exam 5
Same format as the real test. Answers stay hidden until you submit.
- No sign-up
- Every answer explained
- Independent · not a government site
- 40 questions
- 30 min
- Pass mark 32/40
All 40 questions in this test
Every question and its answer choices. The correct answers and explanations appear when you take the test above.
Can you write the Class 3 knowledge test before your Medical Examination Report is approved?
- Only if a doctor signs the test form
- Yes, but approval is needed before Authorized Instruction
- No, the medical must be approved first
- Yes, and no medical report is ever needed for a Class 3 licence
Inside Winnipeg, how far from the nearest rail must you stop at a railway crossing?
- At least 30 m
- At least 15 m
- At least 5 m
- At least 1 m
Turning left with a bus, when do you begin turning?
- As soon as the front wheels pass the stop line at the corner
- When the cross street's curb shows in the front left window
- When the rear wheels reach the crosswalk
- When oncoming traffic slows for you
A school bus seats 40 occupants including the driver. What class is needed while carrying passengers?
- Class 5 with an S endorsement
- Class 4 or higher
- Class 2 or higher
- Class 3 or higher
How must alcohol be carried in a commercial vehicle in Manitoba?
- Anywhere, if it is part of personal luggage
- In the sleeper berth with the cap tightened
- Out of the driver's reach with the seal unbroken
- In the cab, as long as it is not opened
How should you drive into a runaway lane?
- Brake hard and turn sharply into the lane
- Shift into neutral and coast into the lane at an angle
- Foot off the gas, hold tight, steer straight up
- Enter it only after the vehicle has slowed
A person at a scheduled stop offers the fare. When may you refuse to carry them?
- When they are carrying a large bag or a suitcase
- When all seats are full, or they are disorderly
- When they want to stand
- When the bus is running late
Under Manitoba's trip inspection rules, which of these is a commercial motor vehicle?
- A car towing a small utility trailer
- A motorhome used for a family holiday
- A pickup used only for personal trips
- A school bus
What does the S endorsement on a Manitoba licence allow?
- Driving a school bus with passengers
- Adjusting manual slack adjusters
- Adjusting automatic slack adjusters
- Driving vehicles with air-over-hydraulic brakes
How far from an oncoming vehicle must you dim your high beams?
- At least 60 m
- At least 150 m
- At least 450 m
- At least 1 km
An empty school bus approaches a railway crossing. Must it stop?
- Only on provincial highways
- No, only when carrying students
- Only if the crossing has no signals
- Yes, whether or not it carries passengers
A load is 4.8 m wide. What is required?
- Only a wide load sign
- Escort vehicles in front and behind
- Night travel with amber lights
- One escort vehicle behind the load only
You are driving in strong gusting winds. Which action does MPI advise?
- Speed up to get through the gusts faster
- Pass other vehicles to get clear of them
- Drive close beside other vehicles for shelter
- Reduce speed and grip the wheel firmly
You find a major defect during your trip inspection. What must happen?
- Fix it within seven days and keep driving
- Write it on tomorrow's report
- Report it at the end of the shift
- Report it immediately; the vehicle may not operate
What is the legal length of a tractor-trailer including its load in Manitoba?
- 21.5 m
- 12.5 m
- 27.5 m
- 23 m
Which rule helps prevent vehicle fires?
- Leave the parking brake partly applied
- Shut off the engine when refuelling
- Start propane heaters with the van doors closed
- Throw cigarette butts away from the load
What minimum Class 5 stage must you hold to get Authorized Instruction in Class 1?
- Class 5L (Learner Stage)
- Class 5F (Full Stage)
- Class 5A (Authorized Instruction)
- Class 5I (Intermediate Stage)
When towing a disabled vehicle with a tow truck, what is the maximum distance between them?
- 10 m
- 5 m
- 2 m
- 15 m
Placards rather than labels are used on containers larger than what capacity?
- 1,000 litres
- 45 litres
- 454 litres
- 200 litres
A smaller vehicle pulls out to pass you. What should you do?
- Flash your headlights to warn it
- Speed up to keep the gap ahead
- Reduce speed to help it pass safely
- Wave it back into line behind you
During the hydraulic brake check, the pedal is held for one minute. What result must be reported?
- The pedal rises slightly when released
- The pedal feels harder with the engine off
- The pedal moves toward the floor more than 65%
- The pedal stays firm the whole minute
How often must a 55-year-old Class 1 driver submit a Medical Examination Report?
- Every five years
- Every year
- Every three years
- Every two years
What is the top speed of farm tractors, combines and similar equipment on the road?
- About 25 km/h
- About 80 km/h
- About 40 km/h
- About 60 km/h
What happens to an unsecured load when you brake?
- It shifts toward the rear doors
- It settles more firmly in place
- It may shift forward
- Nothing, if the floor is dry
Besides slowing down, how can you shrink your danger zone?
- Keep your foot on the accelerator
- Turn on your hazard lights and sound the horn
- Cover the brake when a hazard may develop
- Shift into a higher gear
Which practice causes preventable passenger injuries on buses?
- Turning slowly at intersections
- Sudden stops or starts with standees
- Stopping close to the curb at a loading zone
- Closing the doors before moving
During a trip, how often does MPI suggest checking gauges, tires and cargo?
- Every 30 minutes
- Every three hours
- Once at the end of the day
- Every eight hours
A driver registers a BAC of .06 for the first time, with no children aboard. What suspension applies?
- A 15-day licence suspension
- A 24-hour suspension only
- A 72-hour licence suspension
- A three-month suspension
A passenger van seats 15 occupants including the driver and carries paying passengers. What class is needed?
- Class 2 or higher
- Class 4 or higher
- Class 5
- Class 1 only
With no guide available, what good practice does MPI suggest while backing?
- Back as quickly as possible to clear traffic
- Sound the horn for each vehicle length travelled
- Back in one long move without stopping
- Keep the hazard lights off to avoid confusion
Outside a city, town or village, how far before the intersection should you signal a turn?
- About 15 m
- About 500 m
- About 150 m
- About 30 m
How many times may you pull ahead during the Class 1 straight line backing test?
- As many as five times
- A maximum of three times
- Unlimited, within ten minutes
- Only once
What is the recommended speed on Manitoba ice roads for vehicles of 7 tonnes GVWR or more?
- 70 km/h
- 50 km/h
- 15 km/h
- 30 km/h
Why should a CO2 extinguisher not be used in an enclosed space?
- It can cause suffocation and skin blistering
- It does not work on electrical fires
- It freezes the spilled fuel and can make it explode
- It spreads grease fires like water does
Why are bridges and overpasses especially dangerous in winter?
- Black ice can form on them from condensation
- They are salted less often than roads
- Snow plows are not allowed on them
- They are always narrower than the highway
You leave the cab of a truck carrying dangerous goods. Where must the shipping document be?
- Locked in the trailer together with the goods
- On the seat or in the driver's door pocket
- In your pocket as you walk away
- Mailed to the consignee
Driver fatigue is estimated to be a factor in what share of heavy truck fatalities?
- More than 75 per cent
- 5 to 10 per cent
- About 15 per cent
- 30 to 40 per cent
Your bus is 11.5 m long. Under ideal conditions, what following count should you use?
- Four seconds
- Five seconds
- Two seconds
- Three seconds
When uncoupling, how far should the landing gear be lowered?
- Halfway down, to save time later
- Until the trailer lifts off the fifth wheel
- Until it touches the ground or is under 2 cm above it
- Until the trailer is level with the dock
At about what speed can tires start to ride up on a wedge of water?
- Only above 120 km/h
- At any speed on dry roads
- About 70 km/h and higher
- Below 20 km/h
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