B.C. Class 1 Knowledge Practice Test 2026：第3套练习测试

1. 第1题，共20题

   How should you use the brakes when driving through water?

   • AUse only the trailer hand valve
   • BDo not touch the brakes at all
   • CBrake hard, then release quickly
   • DKeep slight, steady pressure on the brakes
   显示答案

   答案: D. Keep slight, steady pressure on the brakes

   Apply slight, constant pressure in water, then use light pressure afterward to dry the brakes.

2. 第2题，共20题

   Anti-lock braking systems are mandatory on trucks and buses over 4,560 kg made since what date?

   • AJanuary 1, 1980
   • BJanuary 1, 2015
   • COctober 18, 2021
   • DApril 1, 2000
   显示答案

   答案: 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.

3. 第3题，共20题

   When is a tractor-trailer said to be in a full jackknife?

   • AWhen the tractor and trailer form an angle of 90 degrees or less
   • BWhen the trailer wheels lift off the ground
   • CWhen the trailer comes unhooked from the tractor
   • DWhen the truck rolls over onto its side
   显示答案

   答案: 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.

4. 第4题，共20题

   What is the fine for brakes that are not correctly adjusted or not working properly?

   • AUp to $2,000
   • BUp to $200
   • CUp to $50
   • DThere is no fine
   显示答案

   答案: A. Up to $2,000

   Brakes out of adjustment or not performing well can lead to a fine of up to $2,000.

5. 第5题，共20题

   A combination has 8 equally loaded axles with 16 brakes. About how much of the braking does each brake do?

   • AAll of it
   • BAbout 1/16
   • CAbout half
   • DAbout 1/4
   显示答案

   答案: B. About 1/16

   Each brake does about 1/16 of the work, so a brake out of adjustment makes the others work harder.

6. 第6题，共20题

   By how much can good driving habits cut fuel use?

   • AUp to 3%
   • BUp to 80%
   • CUp to 30%
   • DNot at all
   显示答案

   答案: C. Up to 30%

   Good driving habits can reduce fuel consumption by up to 30%.

7. 第7题，共20题

   Under the federal hours-of-service rules used for commercial drivers in Canada, what is the most driving time in a day?

   • A11 hours
   • B16 hours
   • C13 hours
   • D10 hours
   显示答案

   答案: C. 13 hours

   You may not drive more than 13 hours in a day.

8. 第8题，共20题

   Under the federal rules, after how many on-duty hours in a day must you stop driving?

   • A15
   • B18
   • C12
   • D14
   显示答案

   答案: D. 14

   You may not drive after 14 hours on duty in a day.

9. 第9题，共20题

   Under the federal rules, how many hours off duty must you take each day?

   • A8, all at once, and nothing more
   • B10, including at least 8 in a row
   • C6, in any pattern
   • D12, all at once
   显示答案

   答案: B. 10, including at least 8 in a row

   Take at least 10 hours off duty each day, with at least 8 consecutive hours.

10. 第10题，共20题

    Under the federal rules, what is the elapsed-time limit after your last 8-hour off-duty period?

    • AYou may not drive after 20 hours have passed
    • BThere is no limit
    • CYou may not drive after 12 hours have passed
    • DYou may not drive after 16 hours have passed
    显示答案

    答案: 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.

11. 第11题，共20题

    Under the federal rules, what is the limit on Cycle 1?

    • A80 hours on duty in 8 days
    • B120 hours on duty in 7 days
    • C70 hours on duty in 7 days
    • D60 hours on duty in 7 days
    显示答案

    答案: 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.

12. 第12题，共20题

    Under the federal rules, how many consecutive hours off reset Cycle 1?

    • A8
    • B24
    • C72
    • D36
    显示答案

    答案: D. 36

    Cycle 1 resets after 36 consecutive hours off duty. Cycle 2 resets after 72.

13. 第13题，共20题

    This diagram shows a wide right turn. Why does the tractor-trailer drive forward into the intersection before turning?

    • ATo block cross traffic so it has to stop
    • BTo make the turn faster and save fuel
    • CTo let cars pass it on the right side
    • DSo the trailer wheels clear the corner and the curb
    显示答案

    答案: 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.

14. 第14题，共20题

    When turning right in a tractor-trailer, why do you keep the back of the trailer close to the curb at the start?

    • ATo save fuel
    • BSo no one can pass you on the right
    • CTo keep the trailer clean
    • DTo see the street signs better
    显示答案

    答案: 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.

15. 第15题，共20题

    This diagram shows what truck mirrors cover. How do objects in a convex mirror look?

    • AExactly the right size and distance
    • BLarger and closer than they really are
    • CSmaller and farther away than they really are
    • DUpside down
    显示答案

    答案: C. Smaller and farther away than they really are

    Convex mirrors show a wider view, but objects look smaller and farther away.

16. 第16题，共20题

    Where is the largest no-zone around a tractor-trailer?

    • ADirectly beside the driver's door
    • BOn the roof
    • CFar ahead of the cab
    • DAlong the right side, beside the trailer
    显示答案

    答案: D. Along the right side, beside the trailer

    The right-side no-zone is the biggest and can cover two lanes beside the trailer.

17. 第17题，共20题

    What does sliding the fifth wheel back toward the drive axles do?

    • AMoves more weight onto the steering axle
    • BHas no effect on how weight is spread
    • CMoves weight off the steering axle and onto the drive axles
    • DMakes the trailer longer than the legal limit
    显示答案

    答案: 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.

18. 第18题，共20题

    In this coupling sequence, what should the fifth wheel look like before you back under the trailer?

    • ARemoved from the tractor frame
    • BTilted up toward the back, with the jaws closed
    • CTilted down toward the back, with the jaws open
    • DFlat, with the jaws locked closed
    显示答案

    答案: 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.

19. 第19题，共20题

    A learner is driving a bus in B.C. Who may ride along?

    • AOnly the supervisor and other learners for the same class
    • BUp to five friends or family members
    • CAny paying passengers, up to the bus's capacity
    • DNo one, not even the supervisor
    显示答案

    答案: 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.

20. 第20题，共20题

    Before age 45, how often are routine medical reports due for B.C. commercial drivers?

    • AEvery 5 years (at ages 25, 30, 35, 40 and 45)
    • BEvery year, starting at age 19
    • CEvery 2 years, starting at age 25
    • DOnly once, when you first apply
    显示答案

    答案: 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.

键盘：按1–4作答，按 Enter 进入下一题。