Cdl Test Flashcards
1
Q
What is the most important reason for doing a vehicle inspection
A
Safety for yourself and other road users
2
Q
What to check during a trip
A
-watch gauges
-use senses
-check tires, brake lights, trailer when stoped
3
Q
Key steering system parts
A
Wheel, tire rod, steering arm, power steering cylinder, hydraulic fluid resivior, steering shaft.
4
Q
Suspension System Defects
A
Cracked/broken spring hangers,
-missing/broken
-leaf spring,
-leaking shock absorber,
-axle position parts broken
-air suspension system
-
5
Q
3 mandatory emergency equipment
A
Spare electrical fuses
-warning devices
-fire extinguisher
6
Q
Minimum tread for each tire.
A
Front 4/32
Else 2/32
7
Q
What to check on front of vehicle
A
Air pressure
-wear
-cuts
-mismatched tires
- rims
8
Q
Check wheel baring seals for
A
Leaking
9
Q
How many red reflective triangles to carry
A
3
10
Q
How to test hydraulic brakes for leaks
A
Pump brake three times,
Firm pressure for 5 seconds
Pedal should not move
11
Q
Why put starter switch in your pocket during inspection
A
To make sure engine is off
12
Q
Why back toward driver side
A
To see better
13
Q
How to start on a hill without rolling back
A
Use parking brake
14
Q
Why use helper when backing
A
There are always blind spots you can’t see
15
Q
Most important hand signal for backing helper
A
Stop
16
Q
2 conditions where you should downshift
A
Starting down a hill
On a curve
17
Q
When to downshift with automatic transmission
A
18
Q
What are retarders
A
Help slow a vehicle to use less of the brake turn off when icy
19
Q
Two ways to know when to shift
A
By rpm’s or by road speed
20
Q
How far ahead should you look
A
12 - 15 seconds
21
Q
What are two main things to look for ahead
A
Look for vehicles coming into your lane, brake lights
22
Q
Most important ways to see sides and rear of vehicle
A
Mirror adjustments,
23
Q
What does communicating mean in safe driving
A
Signaling intentions
24
Q
Where to place reflectors on a divided highway
A
10 feet front or rear corners, 100 feet ahead and behind.
25
What three things add up to total driving distance
Perception, reaction, braking
26
Twice as fast how will stopping distance increase
It’s exponential
27
Empty trucks have the best braking true or false
True
28
What is hydroplaning
Tires lose contact with road in bad weather conditions.
29
What is black ice
I’ve that looks wet.
30
How to find how many seconds of following space you have
By seconds
31
30 foot vehicle 55mph how many seconds of following distance should you have
Under 40mph 1 sec for each 10 feet over 40 add additional second so 4 seconds.
32
Decrease following distance if someone behind close behind true or false
False increase it!
33
If you swing wide to the left before turning right another driver can pass you on the right
True
34
What is a hazard
Any road condition that is a possible danger
35
Why make emergency plans for a hazard
Reduced danger
36
Difference between aggressive driving and road rage
Aggressive being pushy or selfish
Road rage the intent to do harm
37
T or F you should use low beams as much as possible
F use high beams when possible
38
Let air out of hot tires?
F
39
Ok to remove radiator cap when vehicle overheating
False
40
What factors determine your selection of a
"safe" speed when going down a long, steep
downgrade?
Total weight of the vehicle and cargo.
Length of the grade.
Steepness of the grade.
Road conditions.
Weather.
41
Why should you be in the proper gear before
starting down a hill?
Shift the transmission to a low gear before starting
down the grade. Do not try to downshift after your
speed has already built up. You will not be able to
shift into a lower gear. You may not even be able to
get back into any gear and all engine braking effect
will be lost.
42
Describe the proper braking technique when
going down a long, steep downgrade.
Apply the brakes just hard enough to feel a definite
slowdown.
When your speed has been reduced to
approximately five mph below your "safe" speed,
release the brakes. (This brake application should
last for about three seconds.)
When your speed has increased to your "safe"
speed, repeat steps 1 and 2.
43
What type of vehicles can get stuck on a
railroad-highway crossing?
Low slung units (lowboy, car carrier, moving van,
possum-belly livestock trailer).
Single-axle tractor pulling a long trailer with its
landing gear set to accommodate a tandem-axle
tractor.
44
How long does it take for a typical tractor-trailer
unit to clear a double track?
at least 14 seconds to clear a single track and more
than 15 seconds to clear a double track.
45
Stopping is not always the safest thing to do
in an emergency. True or False?
True when you don't have enough room to stop
46
What are some advantages of going right
instead of left around an obstacle?
If the shoulder is clear, going right may be best. No
one is likely to be driving on the shoulder but
someone may be passing you on the left. You will
know if you have been using your mirrors.
47
What is an "escape ramp?"
Escape ramps are made to
stop runaway vehicles safely without injuring drivers
and passengers. Escape ramps use a long bed of loose, soft material to slow a runaway vehicle,
sometimes in combination with an upgrade.
48
If a tire blows out, you should put the brakes
on hard to stop quickly. True or False?
False
49
How do you know if your vehicle has antilock
brakes?
Tractors, trucks, and buses will have yellow ABS
malfunction lamps on the instrument panel.
Trailers will have yellow ABS malfunction lamps on
the left side, either on the front or rear corner.
50
What is the proper braking technique when
driving a vehicle with antilock brakes?
Use only the braking force necessary to stop safely
and stay in control.
Brake the same way, regardless of whether you
have ABS on the bus, tractor, the trailer, or both.
51
How do antilock brakes help you?
ABS helps you avoid wheel lock up and maintain
control
52
What are some things to do at an accident
scene to prevent another accident?
Get vehicle to the side of the road
put on flashers
set out reflective triangles
53
Name two causes of tire fires.
Under-Inflated tires, dual tires that touch
54
What kinds of fires is a B:C extinguisher not
good for?
Electrical fires
55
When using your extinguisher, should you get
as close as possible to the fire?
False
56
Name some causes of vehicle fires.
after accidents, tire fires, electrical system, fuel, cargo
57
What is a hazardous materials placard?
used to warn others of hazardous
materials.
58
What four things related to cargo are drivers
responsible for?
Inspecting your cargo.
Recognizing overloads and poorly balanced
weight.
Knowing your cargo is properly secured and does
not obscure your view ahead or to the sides.
Knowing your cargo does not restrict your access
to emergency equipment.
59
How often must you stop while on the road to
check your cargo?
After you have driven for 3 hours or 150 miles.
After every break you take during driving
60
How is Gross Combination Weight Rating
different from Gross Combination Weight?
The rating is the maximum
61
Name two situations where legal maximum
weights may not be safe.
Bad Weather or in Mountains
62
What can happen if you don't have enough
weight on the front axle?
can make the
steering axle weight too light to steer safely. Too
little weight on the driving axles can cause poor
traction.
63
What is the minimum number of tie-downs for
any flatbed load?
1 tie down every 10 feet
64
What is the minimum number of tie-downs for a
20-foot load?
2
65
Name the two basic reasons for covering cargo
on an open bed.
To protect people from spilled cargo.
To protect the cargo from weather
66
What must you check before transporting a
sealed load?
You cannot inspect sealed loads, but you should
check that you don't exceed gross weight and axle
weight limits.
67
Name some things to check in the interior of a
bus during a Vehicle inspection.
Each handhold and railing.
Floor covering.
Signaling devices, including the restroom
emergency buzzer, if the bus has a restroom.
Emergency exit handles.
The seats must be safe for riders. All seats mustbe
securely fastened to the bus.
68
What are some hazardous materials you can
transport by bus?
small arms, ammunition, labeded ORM-D
Emergency hospital supplies, drugs
69
What are some hazardous materials you can’t
transport by bus?
Division 2.3 poison gas, liquid Class 6 poison, tear
gas, irritating material.
More than 100 pounds of solid Class 6 poisons.
Explosives in the space occupied by people,
except small arms ammunition.
Labeled radioactive materials in the space
occupied by people.
More than 500 pounds total of allowed hazardous
materials, and no more than 100 pounds of any
one class.
70
What is a standee line?
a two-inch line on the floor or some other means of
showing riders where they cannot stand.
71
How far from a railroad crossing should you
stop?
Stop your bus between 15 and 50 feet before
railroad crossings
72
When must you stop before crossing a
drawbridge?
50 feet before
73
Describe from memory the “prohibited
practices” listed in the manual.
Avoid fueling your bus with riders on board unless
absolutely necessary. Never refuel in a closed
building with riders on board.
Don't talk with riders, or engage in any other
distracting activity, while driving.
Do not tow or push a disabled bus with riders aboard
the vehicle, unless getting off would be unsafe. Only
tow or push the bus to the nearest safe spot to
discharge passengers. Follow your employer's
guidelines on towing or pushing disabled buses.
74
The rear door of a transit bus has to be open to
put on the parking brake. True or False?
False
75
Why must air tanks be drained?
To get out of damaging oil and water
76
What is a supply pressure gauge used for?
This gauge shows how much air pressure you are
applying to the brakes.
77
All vehicles with air brakes must have a low
air pressure warning signal. True or False?
True
78
What are spring brakes?
All trucks, truck tractors, and buses must be
equipped with emergency brakes and parking
brakes. Spring brakes are usually used to meet these
needs. When driving, powerful springs are held
back by air pressure. If the air pressure is removed,
the springs put on the brakes.
79
Front wheel brakes are good under all
conditions. True or False?
True
80
How do you know if your vehicle is
equipped with antilock brakes?
Check the certification label for
the date of manufacture to determine if yourvehicle
is equipped with ABS
81
What is a dual air brake system?
m has two
separate air brake systems, which use a single set
of brake controls
82
What are the slack adjusters?
Slack adjusters are the mechanical link between the brake chamber’s push rods and the camshaft. The entire slack adjuster works as a unit, rotating with the camshaft as the brakes are applied or released.
83
How can you check slack adjusters?
Park on
level ground and chock the wheels to prevent the
vehicle from moving. Release the parking brakes so
you can move the slack adjusters. Use gloves and
pull hard on each slack adjuster that you can reach.
If a slack adjuster moves more than about one inch
where the push rod attaches to it, it probably needs
adjustment.
84
How can you test the low pressure warning
signal?
Shut the
engine off when you have enough air pressure so
that the low pressure warning signal is not on. Turn
the electrical power on and step on and off the brake
pedal to reduce air tank pressure. The low air
pressure warning signal must come on before the
pressure drops to less than 60 psi in the air tank
85
How can you check that the spring brakes come
on automatically?
y. Continue to fan off the air pressure
by stepping on and off the brake pedal to reduce
tank pressure. The tractor protection valve and
parking brake valve should close (pop out) on a
tractor-trailer combination vehicle and the parking
brake valve should close (pop out) on other
combination and single vehicle types when the air
pressure falls to the manufacturer’s specification
86
What are the maximum leakage rates?
the pressure should
build from 85 to 100 psi within 45 seconds in dual
air systems
50 to 90 psi within 3
minutes with the engine at an idle speed of 600-900
rpms. with single
87
Why should you be in the proper gear before
starting down a hill?
88
What factors can cause brakes to fade or fail?
Excessive use of the service brakes results in
overheating and leads to brake fade.
Adjustment
89
The use of brakes on a long, steep downgrade
is only a supplement to the braking effect of
the engine. True or False?
True
90
If you are away from your vehicle only a short
time, you do not need to use the parking
brake. True or False?
False
91
How often should you drain air tanks?
The end of each day
92
How should you brake when you drive a
tractor-trailer combination with ABS?
Normally
93
You still have normal brake functions if your
ABS is not working. True or False?
True
