問題一覧
1
whenever you doble your speed, it takes about
four times as much distance to stop
2
which vehicle will have the most difficulty staying in its lane during strong winds
a double with empty trailers
3
when you are driving on grades, which of these is the best way to choose a safe speed
base on your vehicle and its cargo, select a safe speeds that is within the posted speed
4
which of these is not a type of retarder
robotic
5
you may get hung-up on rail road tracks if
you try to shift gears when crossing
6
which of these statements about drugs are true
use of drugs can lead to accidents and/or arrests
7
brake “fade”
can be caused by the brakes getting very hot
8
what does emergency braking mean
responding to a hazard by slowly the vehicle
9
tire chains
should always be carried when driving in winter weather
10
if you need to leave the road in a traffic emergency, you should
avoid braking until your speed has dropped to about 20 mph
11
which of these is usually true about driving in tunnels
there may be crosswinds when exiting
12
if possible, a helper should be used to help back your vehicle
whenever you have to back
13
you are driving on a straight, level highway at 50 mph. there are not vehicles in front of you. suddenly a tire blows out on your vehicle. what should you do first
stay off the brake until the vehicle has slowed down
14
can state inspector inspect your truck or bus
yes and the can put it out of service if it is unsafe
15
where must you keep shipping papers when transporting hazardous materials
in a pouch on the driver’s door, Or on the seat
16
most skids
are cause by going to fast or trying to stop too quickly
17
your vehicle is in a traffic emergency and may collide with another vehicle if yo 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
18
a car suddenly cuts in front of you, creating a hazard. which of these action should you not take
hock and stay close behind the car
19
when driving at night, you should
adjust yous speed to keep your stopping distance within your shift distance
20
during a vehicle inspection, checking the
battery fluid level will not help prevent a fire
21
what will help keep an engine cool in hot weather
making sure the engine has the right amount of oil
22
which of these is not a part of the pre-trip inspection of the engine compartment
valve clearance
23
placards must be
placed on all fours sides of a vehicle
24
after starting the engine
the coolant temperature gauge should begin a gradual rise to normal
25
you should use your horn when
it may help avoid a crash
26
you should always turn on your 4-way emergency flashers when you
park on the side of the road
27
which of these is the proper way to signal a lane change
signal early, and changed lanes slowly and smoothly
28
to prevent brake “fade” you should
select gear that will keep your vehicle to a safe speed on steep downgrades
29
which of these Statements about pre-trip inspections is true
if you need to tilt the cab, secure lose things so they do not fall and break something
30
for a first offense of driving a commercial vehicle under the influence of alcohol or drugs, you will lose you CDL for at least
1 year
31
what is the best advise for drivers when a heavy fog occurs
park at a rest area or truck stop until the fog has lifted
32
you are starting your vehicle in motion from a stop. As you apply power to the drive wheels, they start to spin. You should
take your foot off the accelerator
33
what three things add up to the total stopping distance for your truck of bus
perception distance, reaction distance, braking diatance
34
which of these statement is not what you should when passing a vehicle
at night, turn on your high beams before you start to pass and leave them on until you have completely passed the vehicle
35
the primary cause of fatal crashes is
driving too fast
36
which of these is not a danger of rough acceleration
tire damage
37
when is it necessary to learn how a fire extinguisher works
before a fire happens
38
when you are parked at the side of the road at night you must
turn on you 4-way emergency flashers to warn others
39
containerized loads
are generally used when freight is carried part away by rail or ship
40
whenever you double speed, your vehicle has about
four times the destructive power if it crashes
41
you are checking your tires for a pre-trip inspection. which of these statements are true
tires of mismatched size should not be used on the same vehicle
42
which of these may be a sign of tire failure
vibration
43
which of these happens when a tire blows out at highway speed
a vibrating feeling
44
you do no have a hazardous material endorsement on you CDL. You can sirve a vehicle hauling hazardous materials when
the vehicle does not requiere placards
45
at dawn or dusk, or in rain or snow, it can be hard to see and be seen. You can let others know you are there by
turning on the low beam head lights
46
the total weight of a powered unit, the trailer and the cargo is called
gross combination weight
47
the space
in front of your vehicle is the most important to manage
48
if you do not have a CB radio, what is the first thing that you should do at an accident scene
care for the injured
49
the best drivers are those who watch and prepare for hazards. this is called being
defensive
50
which of these is a good thing to remember when crossings or entering traffic with heavy vehicle
heavy vehicles need larger gaps in traffic than cars
51
to help you stay alert while driving, you should
take short breaks before you are drowsy
52
can federal inspector inspect your truck or bus
yes, and they can put it out of service if it is unsafe
53
which of these is not a good rule to follow when caring for injured at an accident scene
keep injured persons cool
54
you can see a marking on a vehicle ahead of you. The marking is a red triangle with an orange center. What does the marking mean
it may be a slow moving vehicle
55
retarders
can cause the drive wheels to skid when they have poor trantion
56
bridge formulas
permit less maximum axle weight for axles that are close together
57
you are diving in an area witch few street lights on a clear night. If you cannot see well with your headlights, such of these actions would help
use your high beams when legal and keep your interior lights off
58
which of these statements about cold weather driving is true
windshield washer antifreeze should be used
59
if a straight vehicle(no trailer or articulation) goes into a front-wheel skid, it will
go straight ahead even if the steering wheel is turned
60
if your brakes fail on a down grade, you must first
wait until you find an escape ramps to exit the roadway
61
you should wear your seat belt in a moving vehicle
at all times
62
a full stop is required at a rail road grade crossing when
the nature of the cargo makes a stop mandatory under state or federal regulations
63
which of these is especially true about your tires in hot weather
you should check tire mounting and air pressure before driving
64
which of these is not something you should do if you headlights are not working properly
leave on your high beams
65
most serious skids result from
driving to fast for conditions
66
you are checking your wheels and rims for a pre-trip inspection. which of these statement is true
rust around wheel just may mean that they are loose
67
over-length, over-width or over-weigh loads
requiere a special transit permit
68
when hydraulic brakes fail while driving, the system won’t build up pressure and the brake pedal will feel spongy of go to the floor. what action should you take
pump the brake pedal to generate pressure
69
you are approaching a traffic light that has been green for a long time. what is the best approach
start slowing down so you will be ready to stop
70
what should you do if you are unsure whether you have enough overhead clearance
find another route that will not requiere driving under the object
71
which of these is true about proper use of steering wheel
if you do not have both hands on the wheel, the wheel could pull away from you
72
during an inspection of hydraulic brakes, you should pump the brake three times, and then apply firm pressure to the pedal for five seconds. if the brakes are working properly, the pedal should
not move
73
when approaching a bridge on a two lane road, you should
check the weight limits of the bridge
74
when driving through work zones, you should
watch for sharp pavement drop offs
75
which of these is true about mirror adjustment
you should adjust the mirrors prior to starting a trip
76
as the blood alcohol concentration (BAC) goes up, what happens
judgement and self control are affected
77
medicines used to treat the common cold
often make you sleepy and thus should not be used while driving
78
when you are driving on a snow packed road, you should reduce your speed by at least
one half
79
which of these is a good thing to do when driving at night
keep your speed slow enough that you can stop within the range of your headlights
80
which of these lights cannot be checked at the same time
turn signals, brake lights and four way flashers
81
what is the term for commercial vehicle’s habits of swinging wide on turns
off-trafficking
82
truck escapes ramps
help avoid damage to vehicles
83
which of these is true about rear drive wheel braking skids
on vehicles with trailers, the trailer can push the towing vehicle sideways
84
which of these is not a danger when an automatic transmission is forced into a lower gear at high speed
loss of steering control
85
to correct a drive-wheel braking skid, you should
stop braking, turn quickly and counter steer