general knowledge Flashcards
1
Q
your tire blew out going down a straight highway at 50 mph what should you do?
A
stay of the brake until the vehicle has slowed down
2
Q
you are driving a new truck with a manual transmission. what gear will you have to use to take a long, steep downhill grade?
A
a lower gear than the one you used to climb the hill
3
Q
what should you check on tires during a pre-trip inspection?
A
- no mismatched tires
- no rust on the lug nuts
4
Q
if a straight vehicle(no trailer) goes into a front wheel spin it will….
A
go straight ahead even if the steering wheel is turned
5
Q
if you leave the road in a traffic emergency you should….
A
avoid braking until your speed has dropped below 20mph
6
Q
what is good fact to remember about unstable loads?
A
unstable loads like hanging meat and livestock can require extra caution on curves
7
Q
according to your drivers manual why should you limit the use of your horn?
A
it can startle other drivers
8
Q
you do not have a hazardous material endorsement on your commercial drivers license. what do you do when asked to deliver hazardous material in a placard vehicle?
A
refuse the load
9
Q
what should you do when you are to tired to drive?
A
sleep because it is the only thing that will help with fatigue
10
Q
your vehicle has hydraulic brakes. while traveling on a level road you press the brake pedal and find that it goes down to floor. what should you do?
A
pump the brake pedal, it might bring pressure up so you can stop the vehicle
11
Q
you are driving at 55 mph on dry pavement. about how much total stopping distance will you need to bring the vehicle to a full stop
A
the length of a football field
12
Q
what type of windshield whipper fluid should you use during the winter?
A
the one with antifreeze so it wont freeze
13
Q
when driving at night you should….
A
adjust your speed to keep your stopping distance within your sight distance
14
Q
you are entering a curb where you will have to downshift. when should you do so?
A
before entering the curb
15
Q
for your safety, when setting out reflective triangles you should….
A
hold the triangles between yourself and the traffic
16
Q
as the blood alcohol level goes up what happens?
A
judgment and self control are affected
17
Q
what is a good thing to remember when using mirrors?
A
there a blind spots which your mirrors cant show
18
Q
when is hydro planning most likely to happen?
A
if your tire pressure is low
19
Q
if you are being tailgated you should….
A
increase your following distance
20
Q
a key principle to remember about loading cargo is to keep the load…..
A
balanced in the cargo area
21
Q
how far should the driver look ahead of the vehicle while driving?
A
12-15 seconds
22
Q
how do you correct a real wheel acceleration skid?
A
stop accelerating
23
Q
the purpose of the retarder is to
A
help slow the vehicle down while driving and reduce brake wear
24
Q
what is controlled braking used for?
A
to keep the vehicle in a straight line when driving
25
what is good fact to remember when steering to avoid a crash?
don't turn anymore than what is needed to clear what is in your way
26
you should stop driving whenever....
you become sleepy
27
you should avoid driving through deep puddle and flowing water but if you must what should you do?
gently step on the brakes when crossing
28
what is good fact to remember when entering or crossing traffic?
heavy vehicles need larger gaps in traffic than cars need
29
you are driving a heavy vehicle with a manual transmission. you have to stop the vehicle on the shoulder while driving on an uphill grade. what should do when taking back off?
use the parking brake to hold the vehicle until the clutch engages
30
you are driving a heavy vehicle and are exiting a highway using an off-ramp that curves downhill you should....
slow down to get to a safe speed before the curve
31
where do you place your reflective triangle markers when parked on the side of a level, straight, four lane divided highway?
at 10, 100 and 200 feet away from the rear of the vehicle
32
you are driving on a 2 lane road when an oncoming driver drifts into your lane. what should you do?
steer to the right
33
brake fade....
is caused when brakes get to hot
34
what should you never do when your engine over heats?
remove the radiator cap. wait till it cools
35
what should you consider when going under a bridge
the height and weight of your vehicle. the weight also affects the height of your vehicle
36
what should you use to put out a burning tire?
cool water
37
when should you start turning when taking a left into a two way lane, two way street?
when you are half way through the intersection
38
what should you do when driving on a slippery road?
slow down gradually
39
what is good fact to remember when accelerating?
rough acceleration causes mechanical damage
40
what is good fact to remember when braking?
the heavier the vehicle or the faster it is moving the more heat the brakes have to absorb to stop it
41
when roads are slippery, you should.....
make turns as gently as possible
42
what is good fact to remember when doing pre trip inspections?
cracked drums should be replaced
| one missing leaf spring can be dangerous
43
what is good fact to remember when passing a vehicle?
assume the other drivers do not see you?
44
how far should you look ahead when driving at normal highway speeds?
1/4 of a mile
45
you are starting your vehicle from a stop. You apply power to the drive wheels and they start to spin what should you do?
take your foot off the accelerator
46
what is good fact to remember when driving in hot weather?
inspect tires every 100 miles or 2 hours because the air pressure in the tires rise with the increase in temperature
47
what is good fact to remember when you are about to collide with another vehicle?
you can turn to miss an obstacle quicker than you can stop
48
to help you stay alert when driving you should....
take short breaks before you get drowsy
49
to avoid a crash you had to drive into the right shoulder. you are now driving at 40mph on the shoulder. How do you make your way back on to the road?
if the shoulder is clear stay on the right until your vehicle come to a complete stop than move back into the road when it is safe to do so
50
when should you really be worried about the wind?
when exiting a tunnel
51
what is a good fact to remember when driving at night?
keep your speed slow enough that you can stop within the range of the headlights
52
you are driving a 40ft vehicle at 35 mph the road is dry and visibility is good. What is the least amount of space you should keep in front of your vehicle to be safe?
4 seconds
53
what is the proper way to hold the steering wheel?
both hand on opposite side of the wheel
54
high beams should be used when....
it is safe and legal to do so
55
what does it mean when you see a vehicle with a red triangle and an open orange center?
it is a slow moving vehicle
56
what should you do when the roads become slippery because of black ice?
stop driving as soon as it is safe to do so
57
though the speed limit is 55 mph traffic is driving at 35 mph. what is a safe speed you should be driving at?
35mph
58
what is counter steering?
turning the wheel back in the other direction after steering to avoid an accident
59
whats a good fact to remember when backing up a heavy vehicle?
plan ahead of time and remember your blind spots
60
how should you use a brake pedal on a steep downhill grade?
light steady pressure
61
when turning when should you turn on your signal?
before
62
what is good fact to remember when double clutching and shifting?
you can use the tachometer to tell you when to turn
63
what is good fact to remember for speed management
choose a speed that lets you stop within the distance that you can see ahead
64
retarders....
can cause the wheels to skid when they have poor traction
65
to correct a drive wheel braking skid you should....
stop braking, turn quickly, then countersteer
66
when exiting or entering a curved freeway ramp, you should....
maintain a speed that is 5-10mph below then the posted limit
67
what vehicle would take the longest to stop?
bobtail tractor
68
how many red reflective triangles do you need to carry
3
69
you are required to check your truck within how many miles after beginning a trip?
25 miles
70
where should the keys be during your pre trip inspection
in your pockets
71
if your cargo is loaded at the end of the trailer what might it result in?
poor traction in the drive wheels
72
communication means....
to talk on the cb radio
73
if you are convicted of driving under the influence while driving a commercial vehicle how long will your CDL be suspended?
at least 1 year
74
if you are stopped somewhere in your truck and you have a high BAC level what will happen?
your truck will be decommissioned for at least 24 hours
75
what is good fact to remember about speed management
if your double your speed it will take you 4 times as long to stop
76
what should you do if your brakes get to hot and fail?
- downshift and pump brake pedal
| - look for escape ramp or route
77
the center gravity of a load.....
can make a vehicle more likely to tip over on curves if load is stacked high
78
to prevent load from shifting the should be tie downs for every.....
10 feet of cargo
79
while driving ice builds up on your wiper and they no longer clean the windshield. what should you do?
stop safely and fix the problem
80
when the hydraulic brakes fail while you are driving the system will not build up pressure and the brakes pedal will feel spongy or go to the floor. What should you do?
pump the brake pedal to generate pressure
81
what may be a sign of tire failure?
wheels skidding
82
to prevent brake fade you should....
select the gear which will keep your vehicle at a safe speed on a deep downgrade
83
a full stop is required at rail road stopping when.....
the nature of the cargo makes a stop mandatory under the state or federal regulations
84
when driving at night when you should you turn of your low beams if there is traffic coming your way?
within 500 feet
85
when driving through the work zone you should...
watch for sharp pavement drop offs
86
backing up a commericial vehicle is....
always dangerous
87
when you are parked at the side of the road at night what should be the first thing you do?
turn on your 4 way blinkers
88
stab braking should not be used in vehicles with....
antilock brakes
89
you have to make an emergency stop at a hill or curve where should you place your orange triangles?
with 500 feet of the back of your truck but around the corner or hill
90
what is good fact to remember when you need to leave the road to avoid a hazard or for an emergency?
it is less dangerous to drive onto the shoulder then be in an accident
91
characteristic of front tire failure
cold steering
| steering wheel twisting
92
most skids...
are caused by going to fast and stopping to quickly
93
in bad weather many car drivers tailgate large vehicles. what should you do?
increase your following distance
94
what system should receive extra attention during winter weather?
the exhaust system
95
what happens to tar on the road pavement during hot weather?
it bleeds making the road surface slippery
96
what is the best advice for drivers when a heavy fog occurs?
park the vehicle until the fog disappears
97
In mountain driving you will have to use a lower gear to drive safely on a grade. what does not affect the gear choice?
tire tread depth
98
what should you do before driving into the mountains?
know escape ramp locations on your way
99
escape ramps....
should be used by any driver who looses braking power
100
what is good fact to remember when notifying authorities after an accident?
if you have a cellphone or cb radio you should notify the authorities before exiting the vehicle
101
if you are not sure what to use to put out the hazardous material fire you should....
wait for firefighters
102
Dangers of rough acceleration...
mechanical damage
| damage of the couplings
103
what lights cannot be checked at the same time?
turn signals
brake lights
four way flashers
104
you are inspecting hydraulic brakes. you should pump the brakes pedal 3 time then apply pressure to the pedal for 5 seconds. if the brakes are working properly the pedal should.....
not move
105
when starting a bus on a level surface with good traction there is often no need for....
parking brakes
106
how does the weight affect its stopping distance?
empty trucks take longer to stop than if loaded, but this is not normally true for busses
107
when you are starting to move up a hill from a stop you should......
release the parking brakes as you apply engine power
108
what is a good fact to remember about the heater?
when driving in cold weather you should check the heater is working properly before starting your trip
109
why is a damaged exhaust dangerous?
poisonous fumes can enter the cab
110
what is a danger when an automatic transmission is forced into a low gear at high speed?
damage to the transmission
| a loss of steering control
111
perception distance is the distance your vehicle travels from the time....
the eyes see the hazard to the time the brain knows that is a hazard
112
extra care in needed to make sure that your vehicle is in your lane because commercial vehicles.....
are often wider than other vehicles
113
you should lightly apply your brakes to flash the brake lights if....
you are about to exit and need to slow down
114
merging to the road is safest if you.....
wait for a large enough gap in the traffic to enter the road
115
what should you not do if your headlights are not working properly?
leave on your high beams
116
what are good facts to remember when backing up your vehicle?
you should back and turn towards the drivers side whenever it is possible
you should use a helper and communicate with him using hand signals
117
when driving at a low speed how far ahead of you should you look?
1 block
118
what does emergency braking mean?
responding to a hazard by slowing down the vehicle
119
when driving in cold weather your tire tread should....
provide enough touch into steer and push the vehicle through the snow
120
convex curved mirrors make....
show a wider area than flat mirrors
121
why is it important to shift gears correctly...
to keep control of the vehicle
122
what three distances build up the total stopping distance of your truck or bus?
perception distance
reaction distance
braking distance
123
what should you not do when making a left hand turn?
start at the inside lane and swing right as you turn
124
when you are passing a vehicle pedestrian or bicycle you should assume that....
they may move in to your traffic lane
125
in your mirror you see a car approaching from the rear the next time you check your mirror you dont see the car. if you wish to change lanes what should you do?
wait until you are sure that no one is there to change lanes
126
how should you change lanes in a commercial vehicle?
signal early and change lanes slowly
127
what is a good fact to remember about cabs that tilt
if you are going to tilt the cab make sure to secure loose objects
128
can state inspectors inspect your vehicle?
yes and they can put you out of service
129
who dictates the legal weight limit?
the state
130
implied consent means....
you are giving consent to be tested for alcohol
131
when is the engine brake effect greater?
when engine is near governed RPM and the transmission is on a lower gear
132
how long will it take a 40 foot vehicle to stop when its going 55mph on dry conditions?
5 seconds
133
if you must stop into the oncoming lane as you make a turn you should...
watch for oncoming traffic
134
what should the tread depth of the front tires be?
not less than 4/32
135
how many leafs springs have to be broken for your vehicle to be put out of business?
1/4
136
how big of a crack are you allowed to have on brake drums or disc brakes?
1/2 the width of the friction area
137
what type of rig has more of a chance to off track while making a turn?
tractor with 45 ft trailer
138
how much space in front of you in needed while driving on a highway?
1 second for every 10 feet of your vehicle length
139
a car suddenly cuts in front of you creating a hazards what should you do?
honk your horn and stay close behind the car
140
what should you do when you see a hazard in the roadway ahead of you?
flash your flashers or brake lights to warn others
141
if your brakes fail on downgrade you must first....
look outside your vehicle for another means of slowing you down
142
should brake adjustment be checked often?
yes because they can get unadjusted if they are used frequently
143
when driving on snow packed snow how much should you reduce your speed by?
half
144
the bridge formula...
permits less maximum axle weight for the axles that are close together
145
when should a helper be used?
when you are backing up your truck
146
what keeps engine cool during hot weather?
Enough oil in the engine
147
turn signals should be used....
at least 100 feet before changing lanes
148
when going down a long steep downgrade you should always.....
use the braking effect of the engine
149
what is not a type of retarder?
robotic
150
where should axel mounts be inspected?
each point they are secured on the vehicle frame and axels
151
if you do not have a CB radio or cell phone what should you do in case of an emergency?
secure the area
152
when should the service brakes be checked?
when the vehicle is stopped
153
where should you keep the papers for a hazardous load?
pouch on the side of the driver door
154
where should you keep the papers for a hazardous load?
pouch on the side of the driver door
