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Fire > Class 4 practice test > Flashcards

Class 4 practice test Flashcards

1
Q

Different-sized tires can:

A

Be dangerous if used on the same axle

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2
Q

You may be fined as much as _______ for driving a vehicle whose brakes are out of adjustment.

A

$2000

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3
Q

How should you upshift a gasoline-powered vehicle that is not equipped with a governor?

A
  1. Use only enough throttle to start the vehicle moving
  2. Shift into higher gears as soon as you have the power to do so
  3. Engage the clutch smoothly and engage the clutch at the same time
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4
Q

For large commercial vehicles, which of the following are advantages of air brakes as compared with hydraulic brakes?

A
  1. Greater force to apply the brakes
  2. More tolerant of small leaks
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5
Q

What are the consequences if you exceed your maximum on-duty hours and a peace officer stops you?

A

You can be ordered out of service

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6
Q

While you’re waiting in an intersection to turn left, which way should you point your front wheels?

A

Straight

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7
Q

If you reduce a tire’s air pressure when it is warm,

A

You may cause excessive flexing in the tire

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8
Q

A taxi driver must test the brakes on the taxi

A

Daily

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9
Q

How far back should you stay when following an emergency vehicle with flashing lights and siren on?

A

150 meters

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10
Q

If a crash occurs while you are backing up with the aid of a guide, who will be held responsible?

A

You

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11
Q

The minimum following distance for a taxi or ride-hailing (e.g., Uber) vehicle is

A

2 seconds

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12
Q

When you see a potential hazard in your danger zone, you should

A

cover the brake pedal

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13
Q

How are flares, fusees, and reflectors used?

A

As a warning device if a vehicle becomes disabled in the daytime or night

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14
Q

What legal documents are all drivers required to have when operating a vehicle?

A

Drivers licence, vehicle registration, and proof of insurance

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15
Q

Partway through your trip, you must couple to another trailer. What should you do?

A
  1. Obtain trip inspection report for that trailer
  2. Inspect the trailer yourself if there is no trip inspection report for it
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16
Q

Why are drivers required to complete a trip inspection report?

A

To comply with government regulations

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17
Q

When braking, just before you come to a stop, you should

A

Release pressure on the brakes slightly and reapply them

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18
Q

What are the recommended positions for your hands on the steering wheel?

A

9 o’clock and 3 o’clock

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19
Q

Drivers on Cycle 1 must not drive after completing ____ hours of on-duty time in seven consecutive days.

A

70

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20
Q

What are some uses of governors?

A
  1. To regulate the amount of fuel going to the engine
  2. To control vehicle speed
  3. To let you start your vehicle without the throttle
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21
Q

Generally the safest drivers are those who:

A

Adjust their driving to the conditions

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22
Q

Any defect or deficiency that you find on your bus must be

A

Reported in writing to the carrier you work for

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23
Q

When driving, the holder of a Class 5–GDL (Probationary) licence must not have a blood alcohol concentration greater than

A

Zero

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24
Q

If a peace officer asks for your logbook and supporting documents, what documents should you provide?

A
  1. Fuel and accommodation receipts
  2. Shipping documents
  3. Bills of lading
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25
Q

While you drive, you should check your rear-view mirrors

A

Every 8-12 seconds

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26
Q

When transporting persons with disabilities, you shouldn’t

A

Speak to the disabled person’s companion or assistant

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27
Q

A Slow-Moving Vehicle sign should be placed on any vehicle that travels no faster than

A

40 km/h

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28
Q

If your vehicle lacks antilock brakes (ABS), how can you stop quickly on a wet or icy roadway?

A

Pump the brakes

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29
Q

Which of the following are true about a humpback railway crossing?

A
  1. It is a railway crossing where a hump has formed
  2. It presents a danger to low-clearance vehicles
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30
Q

Which of the following factors determine the sharpness of your large vehicle’s turn?

A
  1. Turning radius
  2. Off-tracking
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31
Q

If you are parking a single-unit (straight) vehicle on an upgrade without a curb, you should

A

Turn your wheels towards the edge of the roadway

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32
Q

Reducing a tire’s air pressure when it is hot

A

Is a bad idea because when the tires cool off, the pressure may be too low

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33
Q

When a tire is underinflated,

A
  1. It can be excessively worn on the outer edges of its thread
  2. It has a greater chance of hydroplaning
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34
Q

Before you enter a curve, what gear should you select?

A

A gear that lets you drive around the curve while using engine power throughout

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35
Q

You’re driving a vehicle equipped with an automatic front-wheel limiting system (ratio valve). If you brake hard during an emergency stop, the air pressure delivered to the front brakes will be approximately _____ of the air pressure to the rear brakes.

A

100%

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36
Q

What is the best way to ensure that there are no vehicles or cyclists in your blind spot?

A

Shoulder check

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37
Q

If you’re driving a motor home, you should maintain a following distance of at least ________ behind the vehicle in front of you.

A

4 seconds

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38
Q

When travelling downhill, what can you do to prevent your brakes from overheating?

A

Shift into a lower gear

39
Q

When is it not necessary to do a shoulder check?

A

When trying to see how close the car is behind you

40
Q

Underinflated tires and low tire pressures can cause

A

Faster tire wear

41
Q

When driving in fog, you should use

A

Low beam lights

42
Q

What is the purpose of checking your vehicle’s slack adjusters?

A
  1. To ensure your vehicle can stop safely
  2. To comply with the law
43
Q

To stop quickly in an emergency, what should you do if your vehicle has antilock brakes (ABS)?

A

Apply firm, continuous pressure to the brake pedal

44
Q

You are approached from behind by an emergency vehicle sounding its siren on a one-way street. What should you do?

A

Pull over to the nearest curb

45
Q

What is the main purpose of maintaining the correct air pressure in the tires?

A

To extend the life of the tires

46
Q

Which of the following may reduce the amount of steering control you have?

A
  1. Overinflated tires
  2. Underinflated tires
  3. Bald tires
47
Q

At what speed should you back up your vehicle?

A

Slow walking speed

48
Q

If you find a defect or deficiency in your passenger vehicle, what should you do?

A

Report it in writing to the company you work for, by the end of the day

49
Q

Which of the following statements about revolutions per minute (rpm) are true?

A
  1. Displayed on the tachometer
  2. It is the number of turns the crankshaft makes per minute
  3. It helps you decide when to shift
50
Q

Rapid acceleration can increase your fuel consumption by up to

A

40%

51
Q

Why should you use extra caution at railway crossings in rural areas?

A
  1. There are fewer automatic warning systems
  2. Brush is more prevelant
52
Q

While you’re driving a school bus, it breaks down on the road. What should you do?

A
  1. Place a warning triangle in front and behind the bus
  2. Park the bus away from the roadway
53
Q

When parking a vehicle with a manual transmission facing uphill, you should always leave the parking brake on and the transmission in:

A

First gear

54
Q

You are entering a street from a driveway. Which of these is the correct procedure to follow?

A

Stop at the edge of the sidewalk and the edge of the road again

55
Q

When you are following a motorcycle, allow extra space between your vehicle and the motorcycle because

A

Motorcycles can stop very quickly

56
Q

Which of the following are advantages of a dual air brake system?

A

If one system fails, you’ll still be able to stop

57
Q

What should you do to prevent a vehicle fire?

A
  1. Make sure your vehicle’s brakes are fully released while driving
  2. Maintain proper tire pressures
  3. Never start a vehicle with a fuel leak
58
Q

If you’re approaching a level railway crossing that is not protected by gates or railway crossing signals, what should you do?

A

Stop at least 5 meters from the nearest rail and open the door

59
Q

What does the term “space cushion” mean?

A

Space between your vehicle and vehicles around you

60
Q

If you are parking your vehicle on an upgrade without a curb, you should

A

Turn your wheels toward the edge of the roadway

61
Q

How often should you look at your mirrors?

A

Every 5-8 seconds

62
Q

What is the best way to check for vehicles in your blind spot?

A

Shoulder check

63
Q

In the context of commercial driving, what is a turnout?

A

A place to turn off the road to let other vehicles pass

64
Q

How can you tell how much air pressure is in the service reservoirs?

A

Check the reservoir pressure gauge on the dashboard

65
Q

You should not follow cyclists closely because

A

They lack brake lights

66
Q

A white X pavement marking in your lane means that

A

You are approaching a railway crossing

67
Q

What makes the roads extra slippery at the start of a rainfall?

A

The water mixes with the oil on the pavement

68
Q

What is an advantage of automatic slack adjusters?

A

They help maintain correct pushrod stroke

69
Q

If you’re on a 14-day cycle, what is the maximum number of hours you can drive within 14 consecutive days?

A

120 hours

70
Q

How can you downgrade from a commercial licence to a non-commercial licence?

A

Apply for the downgrade at your drivers licencing office

71
Q

Where are a large commercial vehicle’s blind spots?

A

To the front, behind, and both sides

72
Q

An oncoming vehicle at night has not dimmed its high-beam headlights. What should you do?

A

Look at the right edge of your lane until the vehicle passes

73
Q

The time you spend riding on a ferry is considered off-duty time unless

A

You are a bus driver selling tickets while on the ferry

74
Q

Which dashboard gauge can help you decide when to upshift?

A

The tachometer

75
Q

You are sharing a vehicle with another driver during a trip. The two of you disagree about which defects should be reported. What should you do?

A

Make a note of the disagreement

76
Q

To reduce whiplash injuries, the space between your head and the head restraint should be

A

Less than 10 cm (4 in.)

77
Q

What is the purpose of an antilock braking system (ABS)?

A

To help prevent wheel lockup

78
Q

Besides regular brake maintenance, who is responsible for ensuring that the brakes of a vehicle are working properly before the vehicle is driven?

A

The driver

79
Q

Before you make a left turn in a large school bus, you should do which of the following?

A

Wait for gaps in traffic on both sides

80
Q

Turning right from one two-way road into another, from where should you begin your turn?

A

Close to the right hand curb or edge

81
Q

When driving in heavy fog, you should use

A

Low beam lights

82
Q

You should exercise extreme caution when the asphalt looks

A

Shiny and black

83
Q

A tractor-trailer travelling at high speeds creates air turbulence in which of the following areas?

A
  1. At the immediate rear
  2. Alongside the cab
  3. Directly in front
84
Q

Your vehicle’s engine will start to lug (strain) if it is operated

A

Below peak torque

85
Q

Compounding the air brakes can

A
  1. Damage the brake chambers
  2. Damage the slack adjusters
  3. Damage the foundation brakes
86
Q

Where would an air dryer be installed in an air brake system?

A

Between the compressor and first reservoir

87
Q

On a long, narrow stretch of highway, a bus has just reached a passing lane. The bus is travelling slower than the rest of the traffic. What should the bus driver do?

A

Move into the right lane to let cars pass on. the left

88
Q

If a bus becomes disabled on a roadway at night, flares or reflectors must be placed approximately _________ in front of and behind the vehicle.

A

30 meters (100ft)

89
Q

When should you check the tire pressures?

A

When tires are cool

90
Q

What is a runaway lane?

A

A lane designed to stop a vehicle who’s brakes have failed

91
Q

Double-clutching is

A

A way to match engine shaft speed to the speed of the gear

92
Q

When adjusting a manual slack adjuster, how can you tell whether you are turning the adjusting bolt in the correct direction?

A

The cam will rotate in the same direction as if the brakes were being applied

93
Q
A

Fire (3 decks)

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