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CDL Class > General Knowledge practice Test-1-6 > Flashcards

General Knowledge practice Test-1-6 Flashcards

(79 cards)

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1
Q

Which of these is not a type of Retarder?

A

Robotic

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2
Q

When approaching a bridge on a 2 lane road, you should:

A

Check the weight limit of the bridge

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3
Q

A vehicle is loaded with very little weight on the drive axle. What may happen?

A

Poor traction

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4
Q

Turn signals should be used:

A

At least 100 feet before turning or changing lanes

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5
Q

When you are driving on a snow packed road, you should reduce your speed by:

A

1/2

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6
Q

You should signal continuously while turning because:

A

You need both hands on the wheel to turn safely

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7
Q

You must keep the papers related to hazardous material you are hauling:

A

In the pouch of the drivers door

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8
Q

You will be placed out of service for 24 hours if your blood alcohol level is at least:

A

Any detectable amount

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9
Q

Which of these statements is true about the use of an engine brake?

A

The use of engine brakes on a downgrade adds to the braking effect of the engine

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10
Q

After starting the engine:

A

The oil pressure gage should be read right to normal

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11
Q

If you do not have a CB radio, what procedure should you do at an accident scene?

A

Protect the area

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12
Q

Which of these rigs have more chance to offtrack while turning?

A

Tractor with 45 foot trailer

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13
Q

Which of these about alcohol is not true?

A

A drinker can control how fast his body absorbs alcohol

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14
Q

Which of these should you NOT do in an emergency situation?

A

It is not important how you brake in an emergency situation

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15
Q

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

A

Slow down to prevent a crash

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16
Q

During the vehicle inspection, checking of___ __will NOT prevent a fire

A

Battery fluid level

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17
Q

Merging onto a road is safest if you:

A

Wait for a large enough gap in traffic to enter the road

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18
Q

Which of these is NOT a danger of rough acceleration?

A

Tire damage

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19
Q

Which of these lights cannot be checked at the same time?

A

Turn signals, brake lights, 4 way flashers

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20
Q

You are inspecting hydraulic brakes. You should pump the brake pedal 3 times then apply firm pressure to the pedal for 5 seconds. If the brakes are working properly, the pedal should:

A

Not move

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21
Q

How does the weight of a vehicle affect stopping distance?

A

Empty trucks take longer to stop than loaded ones, but this is not normally the case for buses

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22
Q

In bad weather, many car drivers tailgate large vehicles. What should you do?

A

Speed up to distance yourself from the tailgater

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23
Q

Which may be a sign of tire failure?

A

Vibration

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24
Q

Which of these vehicles will have the longest stopping distance?

A

Bobtail tractor

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25
How many red reflective triangles are you required to carry?
3
26
Which of these statements about marking a stopped vehicle is true?
If a hill or curve stops drivers behind you from seeing your vehicle within 500 feet, the rear reflective triangle should be moved down
27
Which of these best describes how you should use the brake pedal on a steep downhill grade?
Light steady pressure
28
Which of these is true about radiator shudders and the winterfront during winter driving?
Ice should be removed from the radiator shudder
29
Which of these statements about acceleration is true?
Rough acceleration can cause mechanical damage
30
Which is NOT true about bad weather and driving conditions?
The road is more slippery when the rain continues than when it begins
31
Which of these statements about vehicle fire hazards is true?
a) Poor cargo ventilation can cause cargo to catch on fire
32
Which of these is true about driving in a tunnel?
There may be strong winds when exiting
33
Your vehicle will be put out of service if ___ or more leaves in any leaf spring are missing:
1/4
34
You must stop on a hill or curve on a 2 lane, 2 way road. How far back should you place your reflective triangles?
Within 500 feet behind you
35
How do you correct a rear wheel acceleration skid?
Stop accelerating
36
Which of these is a good thing to do when steering to avoid a crash?
Don’t turn any more than needed to clear what is in your way
37
Retarders:
Can cause the drive wheels to skid when they have poor traction
38
You may hang up on railroad tracks if:
The tracks have a steep approach
39
What should you do if you are unsure if you have enough overhead clearance?
Find another route that will not require driving under the object
40
You are driving on a straight, level highway at 50 MPH. There are no vehicles in front of you. A tire suddenly blows out on your vehicle. What should you do first?
Stay off the brake until the vehicle has slowed down
41
Which of these statements about engine overheating is true?
You should never remove the radiator cap on a pressurized system until the system is cool
42
If a straight truck(no trailer) goes into a skid, it will:
Slide sideways and spin out
43
If you need to leave the road in a traffic emergency, you should:
Avoid braking until your speed has dropped to about 20 MPH
44
The purpose of a retarder is to:
Help slow the vehicle while driving and reduce brake wear
45
You are travelling down a long, steep hill. Your brakes get so hot that they fail. What should you do?
Both of the above
46
Which of these is true about hazardous materials?
All hazardous materials present a danger to health and safety
47
What is the best advice for a driver when there is a heavy fog?
Park the truck until the fog disappears
48
Which of these statements about a pre-trip inspection is true?
If you need to tilt a cab, secure loose things so they do not fall or break anything
49
Sometimes you need to leave the road to avoid a hazard or emergency. When you do so, you should keep in mind that:
You might not be able to re-enter the road because of the gravel used on roads
50
What will happen if the air lines are crossed when you hook up to an old trailer?
If the trailer has no spring brakes, you could drive away but you wouldn’t have trailer brakes
51
There are two things a driver can do to prevent a rollover. They are (1) keep the cargo as close to the ground as possible and (2):
Go slow around turns
52
Which of these about alcohol is not true?
A drinker can control how fast his body absorbs alcohol
53
Which of the following is NOT a characteristic of a front tire failure?
Vehicle will fishtail
54
Which of these best describes how you should use the brake pedal on a steep downhill grade?
Light steady pressure
55
Which of these is not a brake check you normally do during your walk around inspection?
Brake adjustment
56
Which is NOT true about bad weather and driving conditions?
The road is more slippery when the rain continues than when it begins
57
Controlled braking is:
b) Applying the brakes hard without locking them up
58
To avoid an accident, you moved to the shoulder. To return to the road:
Using mirrors and turn signals, turn sharply to get back on the road
59
When you are starting to move up a hill from a stop:
Release the parking brakes as you apply engine power
60
Which of these is NOT a danger when forcing an automatic transmission into a lower gear at high speed?
A loss of engine braking effect
61
Which of these statements about double clutching and shifting is true?
You can use the tachometer to tell you when to shift
62
You are starting your vehicle from a stop. As you apply power, the drive wheels start to spin. You should:
Take your foot off the accelerator
63
Your vehicle is in a traffic emergency and may collide with another vehicle if you do not take action. Which of these is a good rule to remember at such a time?
You can almost always turn to miss an obstacle more quickly than you can stop
64
Hydroplaning
Is more likely if tire pressure is low
65
Your vehicle has hydraulic brakes. While traveling on a level road, you press the brake pedal and find that it goes to the floor. Which of these statements is true?
Pumping the brake pedal may bring the pressure up so you can stop the vehicle
66
When driving at night, you should use your low beams when an oncoming vehicle is within how many feet?
500
67
You must stop on a hill or curve on a 2 lane, 2 way road. How far back should you place your reflective triangles?
Within 500 feet behind you
68
Which of these is a good thing to do when steering to avoid a crash?
Don’t turn any more than needed to clear what is in your way
69
According to the drivers manual, why should you limit the use of your horn
a) It can startle other drivers
70
What should you do if you are unsure if you have enough overhead clearance?
Find another route that will not require driving under the object
71
You are driving on a straight, level highway at 50 MPH. There are no vehicles in front of you. A tire suddenly blows out on your vehicle. What should you do first?
Stay off the brake until the vehicle has slowed down
72
You are driving a heavy vehicle with a manual transmission. You have to stop on the shoulder while driving on an uphill grade. Which of these is a good rule to follow when putting it back in motion on the uphill grade?
b) Use the parking brake to hold the vehicle in place until the clutch engages
73
If you need to leave the road in a traffic emergency, you should:
Avoid braking until your speed has dropped to about 20 MPH
74
You are travelling down a long, steep hill. Your brakes get so hot that they fail. What should you do?
Look for an escape ramp or escape route
75
What should you do if you see a hazard in the roadway ahead of you?
Use your 4 way flashers or brake lights to warn others
76
Your brakes can get wet when driving through heavy rain. What effect can this cause to your brakes?
Trailer jackknife
77
Which of these is true about emergency or evasive action?
In order to turn quickly, you must have a firm grip on the steering wheel
78
What is the best advice for a driver when there is a heavy fog?
Park the truck until the fog disappears
79
Sometimes you need to leave the road to avoid a hazard or emergency. When you do so, you should keep in mind that:
It is less dangerous to drive on the shoulder than to cause a collision

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