Saskatchewan Commercial Practice Test 2

All 25 questions in this test

Every question and its answer choices. The correct answers and explanations appear when you take the test above.

1. How often may you attempt an SGI commercial knowledge exam?

   1. Once per week
   2. Once per day
   3. Three times per month
   4. Twice per day

2. Which event must be reported immediately by the person in charge of dangerous goods?

   1. A detour around road construction
   2. A change of driver at a rest stop
   3. A delay of one hour at a weigh scale
   4. Any leak or escape from a container

3. Where should you record defects found in a post-trip inspection?

   1. Only in a note left on the dash
   2. On the trip inspection report from that day
   3. On a brand-new report started the next morning
   4. On the bill of lading for the load

4. What does a quick-release valve do?

   1. Opens the safety valve when pressure is high
   2. Applies the brakes faster in an emergency
   3. Exhausts air near the chamber to release brakes faster
   4. Lets the driver release the spring brakes

5. You have just driven through deep water. What should you do next?

   1. Stop and drain the air tanks right away
   2. Avoid braking until the drums are dry
   3. Pump the brakes hard several times while keeping highway speed
   4. Test the brakes and drag them lightly to dry them

6. You are climbing an upgrade below the traffic speed and a passing lane is provided. What should you do?

   1. Use the shoulder until the crest
   2. Turn on hazard lights and keep your lane
   3. Stay in the left lane to block tailgaters
   4. Keep to the right lane

7. In a governor test, at what pressure should the compressor cut out?

   1. Between 150 and 170 psi
   2. Between 90 and 100 psi
   3. Between 120 and 145 psi
   4. Exactly 60 psi

8. A taxi driver's annual criminal record check comes back unsatisfactory. What restriction may SGI add?

   1. L restriction: no Class 2 or 4 vehicles
   2. A restriction: no air brake vehicles
   3. T restriction: no passengers for hire
   4. W restriction: no driving in the United States

9. Beyond what angle does SGI say a jackknife is almost impossible to recover?

   1. About 90 degrees
   2. About 45 degrees
   3. About 15 degrees
   4. About 5 degrees

10. Before a right turn with a long unit, why position the trailer as SGI shows?

    1. To stop traffic from squeezing in on your right
    2. To give pedestrians a wider crosswalk
    3. To keep the trailer off the centre line
    4. To let following cars pass on the left

11. Your tractor-trailer starts to skid. When might gentle use of the hand valve help?

    1. Whenever the road is icy
    2. When the tractor skids, to help straighten the unit
    3. Only to hold the unit still when parked on a grade
    4. When the trailer is skidding sideways behind you

12. Why walk around the vehicle counterclockwise during a circle check?

    1. So you finish at the passenger door
    2. So you can watch for oncoming traffic
    3. Because the lights are wired that way
    4. So the engine has time to warm up

13. Why should you never take a spring-brake chamber apart?

    1. It lets moisture into the air system
    2. The compressed spring can cause serious injury
    3. It voids the vehicle's inspection decal
    4. It changes the slack adjuster angle

14. When should a tow truck driver use the truck's flashing lights?

    1. Whenever the driver wants other traffic to give way
    2. Only when driving faster than traffic
    3. Whenever the tow truck is out on a public road
    4. Only when it or the towed vehicle is a hazard

15. How often must a school bus driver re-test to keep the S endorsement?

    1. Every five years
    2. Every ten years
    3. Every year
    4. Every three years

16. What is the maximum legal width of a vehicle and its load on a provincial highway?

    1. 3.05 m
    2. 2.06 m
    3. 2.4 m
    4. 2.6 m

17. How many hours of Mandatory Entry-Level Training does a Class 1 applicant need before the road test?

    1. At least 40 hours
    2. At least 80 hours
    3. At least 200 hours
    4. At least 121.5 hours

18. What does a converter dolly do?

    1. Lifts an axle off the road when empty
    2. Converts a semi-trailer into a full trailer
    3. Links two tractors for heavy hauling
    4. Converts a tractor into a straight truck

19. When a coupling device other than a fifth wheel is used, what else is needed?

    1. An auxiliary chain or cable as strong
    2. A red flag on the draw-bar
    3. An extra set of trailer mud flaps
    4. A second fifth wheel fitted to the front of the trailer

20. Which driver does not need an air brake A endorsement?

    1. A city transit bus driver
    2. A school bus driver with an S endorsement
    3. A tractor-trailer driver on a highway
    4. A farm-licensed Class 3 truck driver

21. When lining up to couple, where should you first stop the tractor?

    1. With the fifth wheel locked under the kingpin
    2. Fifth wheel just ahead of the trailer, off the kingpin
    3. About ten metres away, so you can walk around and inspect the trailer
    4. With the drive wheels under the trailer apron

22. How long must a carrier keep dangerous goods documents?

    1. Until the next audit
    2. Six months
    3. Five years
    4. Two years

23. While freight is on the vehicle, which copy of the bill of lading must the driver have?

    1. A photocopy left at the shipper
    2. No copy; it is kept on file
    3. The carrier's original
    4. A duplicate original

24. What may a bus driver not do while the vehicle is moving?

    1. Collect fares or load and unload passengers
    2. Use the mirrors to watch passengers
    3. Adjust the heater or ventilation
    4. Answer a passenger's urgent question

25. How does the Class 1 trip inspection test differ from Classes 2 to 4?

    1. You inspect a random block of components and describe defects
    2. You inspect the trailer only, not the tractor
    3. You may use a checklist from the examiner
    4. You only answer written questions about inspections