1
Q
The rods in S-cam brakes move the slack adjusters when air pressure is added to the brake chambers. This air pressure is added to the chambers when the driver:
A
Presses the Brake Pedal
2
Q
A CDL is valid for
A
4 Years
3
Q
What is often found in compressed air?
A
Water
4
Q
How many daily hours of sleep does an adult need to maintain alertness?
A
Eight to Nine
5
Q
When traveling down a steep grade, you switch into a lower gear:
A
Before beginning the grade
6
Q
In a dual air brake system, air pressure should build from 85 to 100 psi within ____ seconds.
A
45
7
Q
Refusing a preliminary breath test (PBT) will result in:
A
Being placed out-of-service for 24 hours
8
Q
A person must be at least ____ years old to drive a CMV across state lines
A
21
9
Q
Which gas would cause concern due to a faulty exhaust system?
A
Carbon monoxide
10
Q
Black ice is:
A
usually thin
11
Q
Regrooved tires are
A
Allowed only on the rear of a bus
12
Q
The minimum acceptable tread depth for rear tires is
A
2/32 of an inch
13
Q
T/F: When starting from a stop a vehicle should roll back a little
A
False
14
Q
Antifreeze helps to keep an engine functioning properly when the temperature is
A
Both when it is cold and hot outside
15
Q
What is road rage?
A
operating a motor vehicle with the intent of doing harm to others
16
Q
A CMV should
A
Have a fire extinguisher and other emergency equipment.
17
Q
a major factor affecting stopping distance is
A
The weight of a truck
18
Q
If you are convicted of driving under the influence of alcohol in a personal vehicle, your CDL:
A
Will be suspended for at least one year
19
Q
You should maintain at least ____ of following distance per every 10 feet of your vehicle when you are traveling more slowly than 40 mph.
A
One second
20
Q
When loading cargo, it is important to:
A
Know the weight capacity rating of the suspension system
21
Q
When starting your vehicle, the coolant temperature should
A
Increase gradually.
22
Q
If backing a truck
A
You should first walk the area to become more familiar with obstacles
23
Q
When starting a vehicle, warning lights and buzzers
A
Should turn on and shut off quickly
24
Q
When alley docking, you should first
A
Stop parallel to the outer boundary of the alley
25
When taking a driving test
You must supply the same type of vehicle for which you will require a CDL.
26
When coming to a stop, you should apply the brake pedal by
Pushing down gradually
27
When in heavy traffic, the safest driving speed is
The same speed being driven by surrounding traffic
28
What color light indicates a vehicle's ABS is not working?
Yellow
29
If you have more than one license
You may get caught through the states' shared computer network.
30
Lights that indicate that anti-lock brakes are not working are what color?
Yellow
31
As part of the vehicle inspection test, you will be asked to
Explain what you would inspect and why
32
If one-fourth of the leaves in a leaf spring are missing when a vehicle is inspected, is the vehicle fit to continue driving?
No
33
Which of the following is not a warning sign of fatigue? Diffculty starying focused, staying in your lane, or rubbing your eyes?
Staying in your lane
34
In a vehicle with dual air brakes, a leak in one system ____ the second system.
May not affect
35
Only once temperatures drop significantly below 32 degrees Fahrenheit.
Before other surfaces
36
When drivers turn, they usually
Look in the direction of the turn
37
What is the proper hand signal for a right turn?
Left Arm and hand pointed up
38
You must yield the right-of-way to other vehicles in all of the following situations EXCEPT
when making a left turn at a green arrow pointing left
39
The stopping distance for a commercial vehicle traveling at 55 mph is about
400
40
You must maintain a _________ following distance to reduce the chance of a rear-end collision.
3-4 second
41
What should you do if another driver tailgates your vehicle?
Allow tailgater to pass by pulling over
42
If your vehicle begins to skid, remain calm and do the following
Turn the front wheels just enough to keep them pointed in the direction you want to go in. If a secondary skid in the opposite direction occur, repeat motion. Remember to take foot off the gas during this
43
A triangular orange sign on the rear of a vehicle indicates that
the vehicle cannot travel faster than 25 mph
44
Do not make a U-turn on a curve or near the top of a hill if you cannot be seen by
Drivers approaching from either direction
45
If your vehicle doesn't have anti-lock brakes (ABS) and your brakes fail while you're driving, which of the following should you do FIRST?
Pump brakes several times
46
To enter a roundabout, you must _________ whether you need to make a right turn, a left turn, or a U-turn or continue forward.
turn right and merge into traffic
47
If a tire blows out, you should
grasp steering wheel firmly
48
_________ are the most likely places for car and motorcycle collisions to occur.
intersections
49
If you must stop your vehicle on a roadway, do so
as far away from traffic as possible
50
A center lane between opposing lanes of traffic may be designated for
left turns only
51
At night, you should use your high-beam headlights EXCEPT
in fog, snow, or heavy rain
52
On a highway with three or more lanes in each direction, the _________ usually offer the smoothest flow of traffic
middle lanes
53
When leaving a freeway
watch for exit ramp signs
54
When driving in rural areas, you must pay more attention to
unmarked railroad crossings and hidden intersections
55
You are waiting to turn right at a stop sign. A vehicle approaching from the left has its turn signal on. You should
wait until the vehicle starts turning before you start your turn
56
Bicycles and motorcycles move ____ and stop______ than expected
slower
57
On expressways, you can avoid highway hypnosis by
shifting your eyes from one area of the road to another
58
_________ are the most frequent type of crashes on interstates.
rear-end collisions
59
When passing a bicycle, you should leave at least _______ of space between your vehicle and the bicycle.
3 feet
60
When driving at night,
drive within range of your headlights
61
If you are stopped at a traffic light and another vehicle is approaching you from behind at high speed, you should
pull your vehicle forward
62
During pre inspection, what item do you need to check to ensure its secure, crack free, and leak free?
Air compressor
63
Containerized loads are used:
When the cargo has been or will be transported by a train
64
A passive railroad crossing
Does not have any control devices
65
Before evacuating a bus in response to a hazard, a driver should
Explain the situation to the dispatcher
66
Properly adjusted crossover mirrors allow you to see all of the following, except:
The tops of the right and left rear tires
67
When should a driver sign a vehicle inspection report
If noted defects are repaired
68
When trying to put out an electrical fire, you should us a _______ extinguisher
B:C
69
To make the brakes work, air brakes use:
compressed air
70
When you have to back, you should always try to back toward the driver's side. Why?
You can see better and watch the rear of your vehicle by looking out the side window.
71
Do NOT use a B:C fire extinguisher on
wood fires
72
An item that is 15 feet long placed on a flatbed trailer should have at least
2 tie-downs
73
T/F Headlights must be turned on a half hour before sunset to a half hour after sunrise
False
74
What do Baffles do?
help to control the forward and backward liquid surge
75
If the engine belts are too loose while driving in hot weather, what will happen? How do you check?
Loose belts will not turn the water pump and/or fan on properly. You can check v-belt tightness by pressing on the belts
76
If your brakes fail on a steep mountain downgrade, you should:
decide what to do as soon as you know your brakes do not work
77
When driving a 50 foot vehicle at 50 mph, how much space should you keep in front of you?
6 seconds
78
When the road is very slippery, you should
stop at the first safe place
79
You must use ________ as the principal way of controlling your speed on downgrades
the braking effect of the engine
80
Rims with welding repairs
are not safe
81
Placards must be
readable from all 4 directions and in a diamond shape
82
If you are driving a 40-foot vehicle at 35 mph, you should leave at least _____ between you and the vehicle ahead
4 seconds
83
If the safety relief valve in the air brake system releases air
something is wrong
84
When checking the lights before driving
you should turn off the engine
85
______ must report accidents and incidents involving hazardous materials to the proper government agency
The carrier
86
The best advice for driving in fog is
Do not drive
87
To check the signal lights, do the following
Turn off all the lights, turn on the stop lights, and turn on the left turn signal lights
88
You are driving a 30-foot vehicle at 35 mph. You should allow at least ______ of following distance between your vehicle and the vehicle in front of you.
3 seconds
89
Hydroplaning is most likely to occur
right after it starts to rain
90
To keep your vehicle from rolling back when you start, you should:
partly engage the clutch before you take your foot off the brake
91
Foundation brakes are used
at each wheel
92
If you have to drive off the road to avoid a collision, you should
stay on the shoulder until your vehicle has come to a stop and avoid braking
93
When you push the brake pedal down, air brakes work
after a short delay
94
Your vehicle has hydraulic brakes. When you press the brake pedal while driving and the pedal goes to the floor, remember that:
pumping the brake pedal may generate enough hydraulic pressure to stop the vehicle
95
If the coolant container is not part of the pressurized system
you can safely remove the cap and add coolant even when the engine is hot
96
Which of these is a possible consequence of forcing an automatic transmission into a lower gear at high speed
Loss of all engine braking effect
97
When you are involved in an accident and not seriously hurt, you need to:
protect the area, notify authorities, and care for the injured
98
How many reflective triangles/emergency reflectors should you carry?
3
99
When using a fire extinguisher, you should stay:
as far away from the fire as possible
100
The wheels of a large combination vehicle are more likely to lock up when:
the vehicle is lightly loaded
101
A high center of gravity
means your vehicle is more likely to tip over
102
The spring brakes come on
when main air pressure is lost
103
If you're carrying hazardous materials and are stopped at a truck stop, you should
leave the shipping papers in the driver’s door pouch or on the driver’s seat
104
If a trailer does not have spring brakes, to keep the trailer from moving you should:
use wheel chocks
105
Hazardous materials placards are
Signs put on the outside of a vehicle to warn others of hazardous materials
106
What is Gross Vehicle Weight Rating?
The value specified by the manufacturer as the loaded weight of a single vehicle
107
An anti-lock braking system (ABS)
helps you avoid wheel lock up and helps you avoid skids caused by over braking
108
Key suspension system parts include
Bearing plates
109
What is not proper tie-down equipment
Bungee cords
110
Empty trucks require greater stopping distances. True or False?
True
111
When the spring brakes are on, you should never
push the brake pedal down
112
When inspecting mirrors and windshields for dirt, cracks, illegal stickers, and other obstructions to seeing clearly, you should:
clean and adjust as necessary
113
Emergency brakes must be held on by
mechanical force
114
The ABS malfunction lamp on the instrument panel is
yellow
115
Interstate commerce means trade, traffic, or transportation in the U.S. that is between
A place in a state and a place outside such state or outside the U.S./Two places in the state through another state or a place outside of the U.S
116
At dawn, dusk, in rain or snow, to make yourself easier to see you should:
use the low beams
117
When using the controlled braking method, you
apply the brakes as hard as you can without locking the wheels
118
A burning tire must be:
cooled with water.
119
When shifting up, you should release accelerator, push in clutch and shift to neutral at the same time, and then?
Release the clutch
120
With a dual air brake system, each system has
its own air tanks, hoses and lines
121
When should you turn the retarder off?
when the road is slippery
122
When driving a 60-foot truck at 50 mph, your minimum following distance should be
7 seconds
123
Glad hands are
coupling devices
124
For an electrical equipment fire or a gasoline or oil fire, use
a type A:B:C or B:C fire extinguisher
125
To recognize when it's time to shift up to a higher gear, use
engine speed (rpm) and road speed (mph)
126
T/F, ABS will not change your normal braking capability
True
127
To use road speed to know when to switch gears you should
learn what speeds each gear is good for
128
If you are traveling at 55 mph in a 30 foot vehicle, how many seconds of following distance should you have?
4 seconds
129
The safety valve installed in the first tank the air compressor pumps air is set to open
if there is too much pressure
130
Radial and bias-ply tires
should not be used together
131
The two ways of knowing when to shift are
engine speed and road speed
132
When traveling with Division 1.1, 1.2, or 1.3 explosives, do not park within _____ of a building
300 feet
133
The safety valve is usually set to open at
150 psi
134
When the wheels of a trailer lock up, the trailer will tend to swing around. This is more likely to happen when
the trailer is empty or lightly loaded
135
Empty trucks require greater stopping distances because
empty vehicles have less traction
136
If you are driving a 50 foot truck and you are traveling at 55 mph, you should have at least _________ of following distance.
6 seconds
137
Placards must be placed
on the front, rear and both sides of the vehicle
138
You must have at least ________ tread depth in every major groove on front tires
4/32 inch
139
If you realize you are going to be later to your destination than you expected, you should
deal with it and accept the delay
140
Which of the following is a key steering system part
Tie rod
141
What is a pull up when referring to truck driving
When a driver stops and pulls forward to get a better position
142
If your drive wheels begin to spin, you should
take your foot off the accelerator
Driving
flashcards
Decks in class (4)
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