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Class B Knowledge test > Test 1 > Flashcards

Test 1 Flashcards

Knowledge test

1
Q

When a coolant container is part of a pressurized system, which of these is true?

A

You can check the coolant level of a hot engine

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2
Q

Which of these is a good thing to do when driving at night?

A

Keep your speed slow enough that you can stop within the range of your headlights

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3
Q

Which of these statements about double-clutching and shifting is true?

A

You can use the tachometer to tell you when to shift

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4
Q

You should avoid driving through deep puddles or flowing water. But if you must, which of these steps can you help you keep your brakes working?

A

Gently putting on the brakes while driving through water

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5
Q

Stab breaking

A

Should be used on vehicles without anti-lock brake systems

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6
Q

“Implied consent” means

A

You have given your consent to be tested for alcohol in your blood

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7
Q

Which of these should be tested while the vehicle is stopped?

A

Hydraulic brake

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8
Q

You wish to turn right from one two-lane, two-way street to another. Your vehicle is so long that you must swing wide to make the turn. Which of these figures shows how the turn should be made?

A

Figure B

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9
Q

You must complete a written vehicle inspection report each day and you must sign:

A

The previous driver’s report when any defects are noted

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10
Q

Which of the below is NOT characteristic of a front tire failure?

A

Vehicle fishtail

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11
Q

What is the proper way to hold a steering wheel?

A

With both hands, on opposite sides of the wheel

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12
Q

Which of these is true about mirror adjustments?

A

You should adjust your mirrors prior to starting a trip

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13
Q

What is countersteering?

A

Turning the wheel back in the other direction after steering to avoid a traffic emergency

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14
Q

The distance that you should look ahead of your vehicle while driving amounts to about_____ mile at highway speed

A

1/4 (1 Block)

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15
Q

Why will your vehicle’s speed naturally increase on downgrades?

A

Gravity

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16
Q

Which of these pieces of emergency equipment should be carried in your vehicle?

A

Warning devices for parked vehicles

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17
Q

During a vehicle inspection, checking the _______will NOT help prevent a fire

A

Battery fluid level

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18
Q

You should signal continuously while making a turning because

A

You need both hands on the wheel to turn safely

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19
Q

Why is a broken exhaust system dangerous?

A

Poison fumes could enter the cab or sleeper berth

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20
Q

You can see a marking on a vehicle ahead of you. The marking is a red triangle with an orange center. What does that marking mean?

A

It may be a slow-moving vehicle

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21
Q

The purpose of retarders is to

A

Help show the vehicle while driving and reduce brake wear

22
Q

Most serious skids result from

A

Driving too fast for conditions

23
Q

When you are parked at the side of the road at night, you must

A

Turn on your 4-way emergency flashers to warn others

24
Q

You are checking your steering and exhaust system in a pre-trip inspection. which of these problems, if found, should be fixed before the vehicle is driven?

A

Steering wheel play of more than 10 degrees (2 inches on a 20-inch steering wheel)

25
Q

CDL medical certifications must be renewed every

A

Two years

26
Q

You do NOT have a HAZMAT endorsement on your commercial driver’s license. You can drive a vehicle hauling hazardous materials when

A

The vehicle does not require placards

27
Q

To avoid a crash, you had to drive onto the right shoulder. You are now driving at 40 mph on the shoulder. How should you move back on to the pavement?

A

If the shoulder is clear, stay on it until your vehicle has come to a stop. Then move back onto the pavement when it’s safe

28
Q

Containerized loads

A

Are generally used when freight is carried part way by rail or ship

29
Q

In your mirror, you see a car approaching from the rear. The next time you check your mirror, you do not see the car. You wish to change lanes. You should:

A

Wait to change lanes until you are sure the car isn’t in your blind spot

30
Q

Whenever you double your speed, your vehicle has about______times the destructive power if it crashes.

A

Four

31
Q

Your are starting your vehicle in motion from a stop. As you apply power to the drive wheels, they start to spin. You should:

A

Take your foot off the accelerator

32
Q

Placecards must be:

A

Placed on all four sides of a vehicle

33
Q

You are driving a new truck with a manual transmission. What gear will you probably have to use to take a long, steep downhill grade?

A

A lower grear than you would use to climb the hill

34
Q

A car suddenly cuts in front of you, creating a hazard. Which of these actions should you NOT take?

A

Honk and stay close to the car

35
Q

What should you do if you are unsure whether you have enough overhead clearance?

A

Find another route that will not require driving under the object

36
Q

You are driving a heavy vehicle. You must exit a highway using an offramp that curves downhill. You should:

A

Slow down to a safe speed before the curve

37
Q

You are driving a vehicle at 55 mph on dry pavement. About how much total stopping distance will you need to bring it to a stop?

A

The length of a football field

38
Q

Which of these is NOT part of the pre-trip inspection of the engine compartment?

A

Valve clearance

39
Q

Truck escape ramps

A

Help avoid damage to vehicles

40
Q

On which fires can you use water?

A

Tires

41
Q

What is the term for a commercial vehicle’s habit of swinging wide on turns?

A

Offtracking

42
Q

Backing a commercial vehicle is

A

Always dangerous

43
Q

Convex (curved) mirrors

A

Show a wider area than flat mirrors show

44
Q

Your breaks can get wet when you drive through heavy rain. What can this cause when the brakes are applied?

A

Trailer jackknife

45
Q

If you are being tailgated, you should

A

Increase your following distance

46
Q

When driving in cold weather, your tire tread should

A

Provide enough traction to steer and push the vehicle through snow

47
Q

Which of these statements about staying alert to drive is true?

A

Sleep is the only thing that can overcome fatigue

48
Q

You are checking your brakes and suspension system for a pre-trip inspection. Which of these statements is true?

A

Brake shoes should not have oil, grease, or brake fluid to them

49
Q

For a first offense of driving a commercial vehicle under the influence of alcohol or drugs, you will lose your CDL, for at least _______?

A

1 year

50
Q

A full stop is required at a railroad grade crossing when:

A

The nature of the cargo makes a stop mandatory under the state of federal regulations

Class B Knowledge test (4 decks)

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