B.C. Class 1 Knowledge Practice Test 2026: Test de práctica 3

Test de práctica 3 de 5 de B.C. Class 1 Knowledge Practice Test: 20 preguntas más con respuestas y explicaciones.

Vehículo comercial
Columbia Británica
130 preguntas
Revisado el 10 de octubre de 2026

Pregunta 1 de 20
How should you use the brakes when driving through water?
- Use only the trailer hand valve
- Do not touch the brakes at all
- Brake hard, then release quickly
- Keep slight, steady pressure on the brakes
Ver respuesta
Respuesta: D. Keep slight, steady pressure on the brakes
Apply slight, constant pressure in water, then use light pressure afterward to dry the brakes.
Pregunta 2 de 20
Anti-lock braking systems are mandatory on trucks and buses over 4,560 kg made since what date?
- January 1, 1980
- January 1, 2015
- October 18, 2021
- April 1, 2000
Ver respuesta
Respuesta: D. April 1, 2000
ABS has been required since April 1, 2000 on trucks and buses over 4,560 kg, and on air-brake commercial trailers.
Pregunta 3 de 20
When is a tractor-trailer said to be in a full jackknife?
- When the tractor and trailer form an angle of 90 degrees or less
- When the trailer wheels lift off the ground
- When the trailer comes unhooked from the tractor
- When the truck rolls over onto its side
Ver respuesta
Respuesta: A. When the tractor and trailer form an angle of 90 degrees or less
A full jackknife is when the tractor and trailer form an angle of 90 degrees or less.
Pregunta 4 de 20
What is the fine for brakes that are not correctly adjusted or not working properly?
- Up to $2,000
- Up to $200
- Up to $50
- There is no fine
Ver respuesta
Respuesta: A. Up to $2,000
Brakes out of adjustment or not performing well can lead to a fine of up to $2,000.
Pregunta 5 de 20
A combination has 8 equally loaded axles with 16 brakes. About how much of the braking does each brake do?
- All of it
- About 1/16
- About half
- About 1/4
Ver respuesta
Respuesta: B. About 1/16
Each brake does about 1/16 of the work, so a brake out of adjustment makes the others work harder.
Pregunta 6 de 20
By how much can good driving habits cut fuel use?
- Up to 3%
- Up to 80%
- Up to 30%
- Not at all
Ver respuesta
Respuesta: C. Up to 30%
Good driving habits can reduce fuel consumption by up to 30%.
Pregunta 7 de 20
Under the federal hours-of-service rules used for commercial drivers in Canada, what is the most driving time in a day?
- 11 hours
- 16 hours
- 13 hours
- 10 hours
Ver respuesta
Respuesta: C. 13 hours
You may not drive more than 13 hours in a day.
Pregunta 8 de 20
Under the federal rules, after how many on-duty hours in a day must you stop driving?
- 15
- 18
- 12
- 14
Ver respuesta
Respuesta: D. 14
You may not drive after 14 hours on duty in a day.
Pregunta 9 de 20
Under the federal rules, how many hours off duty must you take each day?
- 8, all at once, and nothing more
- 10, including at least 8 in a row
- 6, in any pattern
- 12, all at once
Ver respuesta
Respuesta: B. 10, including at least 8 in a row
Take at least 10 hours off duty each day, with at least 8 consecutive hours.
Pregunta 10 de 20
Under the federal rules, what is the elapsed-time limit after your last 8-hour off-duty period?
- You may not drive after 20 hours have passed
- There is no limit
- You may not drive after 12 hours have passed
- You may not drive after 16 hours have passed
Ver respuesta
Respuesta: D. You may not drive after 16 hours have passed
Driving must stop once 16 hours have passed since the end of the last 8 consecutive hours off duty.
Pregunta 11 de 20
Under the federal rules, what is the limit on Cycle 1?
- 80 hours on duty in 8 days
- 120 hours on duty in 7 days
- 70 hours on duty in 7 days
- 60 hours on duty in 7 days
Ver respuesta
Respuesta: C. 70 hours on duty in 7 days
Cycle 1 allows 70 hours on duty in 7 days. Cycle 2 allows 120 hours in 14 days.
Pregunta 12 de 20
Under the federal rules, how many consecutive hours off reset Cycle 1?
- 8
- 24
- 72
- 36
Ver respuesta
Respuesta: D. 36
Cycle 1 resets after 36 consecutive hours off duty. Cycle 2 resets after 72.
Pregunta 13 de 20
This diagram shows a wide right turn. Why does the tractor-trailer drive forward into the intersection before turning?
- To block cross traffic so it has to stop
- To make the turn faster and save fuel
- To let cars pass it on the right side
- So the trailer wheels clear the corner and the curb
Ver respuesta
Respuesta: D. So the trailer wheels clear the corner and the curb
Because the trailer off-tracks, you go further forward before turning so the rear wheels clear the corner.
Pregunta 14 de 20
When turning right in a tractor-trailer, why do you keep the back of the trailer close to the curb at the start?
- To save fuel
- So no one can pass you on the right
- To keep the trailer clean
- To see the street signs better
Ver respuesta
Respuesta: B. So no one can pass you on the right
Keeping the rear close to the curb stops cars and cyclists from slipping into the space on your right.
Pregunta 15 de 20
This diagram shows what truck mirrors cover. How do objects in a convex mirror look?
- Exactly the right size and distance
- Larger and closer than they really are
- Smaller and farther away than they really are
- Upside down
Ver respuesta
Respuesta: C. Smaller and farther away than they really are
Convex mirrors show a wider view, but objects look smaller and farther away.
Pregunta 16 de 20
Where is the largest no-zone around a tractor-trailer?
- Directly beside the driver's door
- On the roof
- Far ahead of the cab
- Along the right side, beside the trailer
Ver respuesta
Respuesta: D. Along the right side, beside the trailer
The right-side no-zone is the biggest and can cover two lanes beside the trailer.
Pregunta 17 de 20
What does sliding the fifth wheel back toward the drive axles do?
- Moves more weight onto the steering axle
- Has no effect on how weight is spread
- Moves weight off the steering axle and onto the drive axles
- Makes the trailer longer than the legal limit
Ver respuesta
Respuesta: C. Moves weight off the steering axle and onto the drive axles
Sliding the fifth wheel back shifts weight onto the drive axles. Sliding it forward shifts weight onto the steering axle.
Pregunta 18 de 20
In this coupling sequence, what should the fifth wheel look like before you back under the trailer?
- Removed from the tractor frame
- Tilted up toward the back, with the jaws closed
- Tilted down toward the back, with the jaws open
- Flat, with the jaws locked closed
Ver respuesta
Respuesta: C. Tilted down toward the back, with the jaws open
Check that the fifth wheel is tilted down at the rear with the jaws open before backing under the trailer.
Pregunta 19 de 20
A learner is driving a bus in B.C. Who may ride along?
- Only the supervisor and other learners for the same class
- Up to five friends or family members
- Any paying passengers, up to the bus's capacity
- No one, not even the supervisor
Ver respuesta
Respuesta: A. Only the supervisor and other learners for the same class
Learners in a bus, taxi, ride-hailing vehicle or ambulance may carry only their supervisor and other learners for the same class.
Pregunta 20 de 20
Before age 45, how often are routine medical reports due for B.C. commercial drivers?
- Every 5 years (at ages 25, 30, 35, 40 and 45)
- Every year, starting at age 19
- Every 2 years, starting at age 25
- Only once, when you first apply
Ver respuesta
Respuesta: A. Every 5 years (at ages 25, 30, 35, 40 and 45)
Routine medical reports are due at 25, 30, 35, 40 and 45, then every 3 years to 63, then yearly from 66.

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