BC Class 1–4 Mock Exam 3

All 50 questions in this test

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

1. Which parking brake cannot be compounded?

   1. An s-cam drum brake
   2. A safety actuator
   3. A wedge brake
   4. A spring parking brake

2. How should you treat the vehicle's history for the pre-trip test?

   1. Assume it has not been driven that day
   2. Assume it was inspected this morning
   3. Skip items a mechanic has signed off
   4. Assume the brakes were adjusted yesterday

3. Your ambulance has lights and siren on. What should you assume about other drivers?

   1. They will always pull over
   2. They may not see or hear you
   3. They will stop in their lane
   4. They heard you from far away

4. About how much pushrod force does a Type 30 brake chamber give at 100 p.s.i.?

   1. About 30,000 pounds
   2. About 300 pounds
   3. About 1,000 pounds
   4. About 3,000 pounds

5. How must load binder handles be secured?

   1. Taped to the deck
   2. Left loose for quick release
   3. Locked or tied so they cannot open
   4. Removed after tightening

6. With an air dryer fitted, should you still drain the reservoirs?

   1. Only if the dryer fails
   2. Only in summer
   3. Yes, regularly
   4. No, never

7. May passengers stand on a school bus while it moves?

   1. Only older students
   2. Yes, if all the seats are already full
   3. No; all must be seated first
   4. Yes, on short trips

8. What is the daily distance limit for the personal use exemption?

   1. 160 km
   2. 50 km
   3. 75 km
   4. 25 km

9. Which vehicles do B.C.'s cargo securement rules apply to?

   1. Only vehicles crossing provincial borders
   2. Only trucks over 5,500 kg
   3. Every vehicle carrying cargo on a highway
   4. Only flat-deck trailers

10. Below what thickness may a peace officer put a vehicle out of service for drum brake linings?

    1. 1/16 inch (1.6 mm)
    2. 1/2 inch (12.7 mm)
    3. 1/4 inch (6.4 mm)
    4. 1/8 inch (3.2 mm)

11. A 3.65 m, 600 kg article is not blocked in front. How many tiedowns does it need?

    1. One
    2. Four
    3. Two
    4. Three

12. Which vehicles must report to a weigh scale when directed?

    1. Commercial vehicles licensed over 5,500 kg
    2. Every vehicle with dual rear wheels, any weight
    3. Only tractor-trailers
    4. Only vehicles with dangerous goods

13. A combination has 16 brakes and two are out of adjustment. What happens?

    1. The ABS balances it out fully
    2. The others overwork and the stop is longer
    3. Nothing, 14 brakes are enough
    4. The vehicle stops sooner on that side

14. How soon must trip inspection reports be given to the carrier?

    1. Within 60 days
    2. Within 7 days
    3. Within 20 days
    4. Within 24 hours

15. Who is ultimately responsible for brake adjustment before the vehicle moves?

    1. The maintenance crew
    2. The driver
    3. The vehicle owner only
    4. The CVIP inspector

16. While adjusting a manual slack adjuster, the pushrod starts coming out of the chamber. What does that mean?

    1. You are turning the bolt the wrong way
    2. The brake is correctly adjusted
    3. The chamber diaphragm has failed
    4. You should keep turning harder

17. A line rupture empties the primary reservoir. What protects the secondary reservoir?

    1. The safety valve
    2. The one-way check valve
    3. The quick release valve
    4. The governor

18. Who needs a passenger transportation licence?

    1. Whoever runs a vehicle carrying passengers for hire
    2. Any driver with a Class 4 licence
    3. Only drivers of buses with more than 25 seats
    4. Only taxi companies with 10+ cars

19. You stop on a highway to pick up passengers. From how far must the bus be visible ahead and behind?

    1. At least 150 m (500 ft)
    2. At least 60 m (200 ft)
    3. At least 30 m (100 ft)
    4. At least 85 m (285 ft)

20. How should you park a tractor-trailer?

    1. Apply the trailer hand valve, then leave the engine running
    2. Leave it in gear with the engine idling
    3. Tractor brakes set, trailer supply closed, wheels blocked
    4. Pump the foot valve and set the hand valve

21. What can happen if a heavy load is placed at the very back of a truck?

    1. The front tires overheat and wear quickly
    2. Braking improves
    3. The truck uses less fuel
    4. Steering becomes very difficult

22. In many dual systems, which brakes does the primary section work?

    1. The drive (rear) axle brakes
    2. The spring parking brakes
    3. The steering axle brakes
    4. The trailer brakes only

23. Which condition is part of the 160 km radius exemption from keeping a log?

    1. Never carry more than 10 passengers on any trip
    2. Drive only on paved highways
    3. Work fewer than 8 hours a day
    4. Return to the terminal daily for 10 hours off

24. Why do the leakage test with the parking brakes released?

    1. To check the low-air warning
    2. To avoid compounding
    3. To save fuel
    4. To hear the compressor

25. On the road test, what is the time target for completing a Class 2 bus pre-trip?

    1. Less than 45 minutes
    2. Less than 30 minutes
    3. Less than 10 minutes
    4. About an hour

26. How should you choose your gear for going down a hill?

    1. Neutral, using only the brakes
    2. A lower gear than you used to climb it
    3. The same gear you used to climb it
    4. A higher gear to save fuel

27. Using the pry method, what free stroke is acceptable?

    1. 1 to 1½ inches
    2. Less than 1/8 inch
    3. ½ to ¾ inch
    4. 1¾ to 2 inches

28. What must a commercial passenger vehicle seating more than 10 carry?

    1. A defibrillator and oxygen
    2. Only a fire extinguisher mounted near the driver
    3. Two spare tires and chains
    4. A first-aid kit, spare tire and fire extinguisher

29. A sign tells trucks to stop and check brakes before a steep downgrade. What must you do?

    1. Slow down without stopping
    2. Turn on four-way flashers and continue
    3. Stop only if your brakes feel weak
    4. Stop in the pullout and inspect brakes and load

30. The primary section of a dual system fails. Which brakes still apply?

    1. Only the drive axle brakes
    2. Only the steering axle brakes
    3. All brakes normally
    4. No brakes at all

31. When does a transit bus leaving a stop have the right-of-way?

    1. Always, on any road and at any speed limit
    2. Only during rush hour
    3. Only when it sounds the horn
    4. When signalling with its yield sign, under 60 km/h

32. What must every trailer's emergency system do if the trailer separates?

    1. Release all trailer brakes
    2. Fully apply the trailer brakes
    3. Lower the landing gear
    4. Sound a warning horn

33. What is the minimum licensed GVW of most commercial vehicles?

    1. 1.5 times the vehicle's net weight
    2. 5,500 kg for all vehicles
    3. Equal to the net weight
    4. Twice the vehicle's net weight

34. What does the guide say is always more important than meeting the schedule?

    1. Fuel economy
    2. Collecting all fares
    3. Passenger safety
    4. Saving engine wear

35. What does GVW mean?

    1. The empty weight of the vehicle
    2. The vehicle plus its load
    3. The manufacturer's maximum rating
    4. The weight on the steering axle

36. You feel dizzy and drowsy and suspect carbon monoxide. What should you do?

    1. Drink coffee and continue
    2. Open a window and keep driving
    3. Pull over, stop and get fresh air
    4. Turn the heater up

37. During the pump-down, before what pressure must the governor cut in?

    1. 100 p.s.i.
    2. 80 p.s.i.
    3. 45 p.s.i.
    4. 60 p.s.i.

38. At fast idle, how quickly must the compressor build pressure from 50 to 90 p.s.i.?

    1. Within 30 seconds
    2. Within three minutes
    3. Within one minute
    4. Within ten minutes

39. After tightening a manual slack adjuster until the linings touch the drum, how far do you back off?

    1. About 1/3 of a turn
    2. About 1/8 of a turn
    3. Two full turns
    4. Not at all

40. How are bus passengers usually injured?

    1. Collisions with other buses
    2. Abrupt stops, starts or turns
    3. Fires in the engine bay
    4. Falling out of windows

41. In the Class 1 pump-down, when must the trailer air supply valve close?

    1. When pressure reaches 80 p.s.i.
    2. When the highest tank reads 20–45 p.s.i.
    3. Only when the engine is shut off
    4. As soon as any gauge drops to 60 p.s.i.

42. When may emergency vehicle drivers who get in and out often be exempt from seatbelts?

    1. At speeds of 40 km/h or less
    2. Only when parked
    3. Never
    4. At any speed in town

43. What do the one-way check valves between the reservoirs do?

    1. Stop air flowing back out of the service tanks
    2. Warn the driver of low air
    3. Exhaust air quickly on release
    4. Raise the pressure in the wet tank when braking

44. When does an engine retarder work best?

    1. At low engine r.p.m. and high road speed
    2. Only when the clutch is pressed
    3. Only on slippery roads
    4. At higher engine r.p.m. and lower road speed

45. When is an overload permit issued?

    1. Whenever the shipper asks
    2. For any load under 4.4 m wide
    3. Only on weekends
    4. Only when the load cannot be reduced

46. May rub rails be used as tiedown anchor points?

    1. Yes, if the load is light
    2. Yes, with edge protectors
    3. No
    4. Yes, on flat decks only

47. The trailer spring brakes will not release and the service brakes do not work. What is a likely cause?

    1. The landing gear is down
    2. The supply and control lines are reversed
    3. The trailer is overloaded on its rear axle
    4. The ABS lamp has failed

48. About how much fuel can a heavy truck burn per hour of idling?

    1. None with a modern engine
    2. Up to 15 litres
    3. Up to half a litre
    4. Up to four litres

49. Why might you place pads under the landing gear when dropping a trailer?

    1. Pads are required by law everywhere
    2. To make the trailer sit level for loading
    3. To keep the legs from rusting
    4. Soft ground can let the legs sink

50. Why can a poorly adjusted brake fail on a long downgrade even if it seemed fine when cool?

    1. The linings swell and lock
    2. The slack adjuster tightens itself
    3. Hot air raises system pressure past the safety valve
    4. Hot drums expand and the chamber bottoms out