knowledge Flashcards
1
Q
Truck escape ramps
A
Are designed to protect vehicles from damage
2
Q
Which of these can cause the vehicle to skid?
A
a. Not enough weight on the front axle.
b. Over acceleration.
c. Turning too sharply
3
Q
You are driving a vehicle that could safely be driven at 55 MPH on an open road. But traffic is now heavy, moving at 35 MPH although the speed limit is 55. The safest speed for your vehicle in this situation is most likely
A
35 MPH
4
Q
Every time you park your vehicle and shut the engine off you should
A
Apply the parking brake
5
Q
Which of these describes how you should use the brake pedal on a steep downhill grade?
A
Release the brake when you are 5 MPH below your safe speed, then let your speed come back up to your safe speed
6
Q
For an average commercial vehicle, being driven at 55 MPH on dry pavement it will take about ____ to bring the vehicle to a stop.
A
The length of a football field
7
Q
Which of these statements about certain types of cargo is true?
A
Unstable loads such as hanging meat or livestock require extra caution on curves.
8
Q
Which of these statements about backing a heavy vehicle is true?
A
Backing is always dangerous
9
Q
When should you wear seat belts?
A
Any time you are in a moving vehicle
10
Q
The most common cause of serious vehicle skids is
A
Driving too fast for road conditions
11
Q
If you are being tailgated, you should
A
Increase the space in front of you
12
Q
The parking brake should be tested while the vehicle is
A
Parked
13
Q
A drivers trip log, if required
A
Must be shown immediately when an officer requests it
14
Q
Should the pre-trip inspection report from the last driver be reviewed during your pre-trip inspection?
A
Yes
15
Q
If you are stopped at a roadside rest and found to have a BAC (Blood Alcohol Concentration) of .02 you will
A
Be placed out of service for 24 hours
16
Q
When roads are slippery, you should
A
Make turns as gently as possible
17
Q
While driving, you see a small (1 foot square) cardboard box ahead in your lane. You should
A
Steer around it when it is safe to do so
18
Q
Which of these pieces of emergency equipment should be carried at all times in your vehicle?
A
a. Fire extinguishers.
b. Warning devices for parked vehicles.
c. Spare electrical fuses (if the vehicle uses them)
19
Q
What is counter steering?
A
Turning the wheel in the opposite direction after steering to avoid a traffic emergency.
20
Q
You do not have a hazardous materials endorsement on your commercial drivers license. When can you drive a vehicle hauling hazardous materials?
A
Only when the vehicle does not require placards
21
Q
You are driving a new truck with a manual transmission. What gear will you probably have to use to take a long downhill grade?
A
A lower gear that you would use to climb the hill
22
Q
High beams should be
A
Used whenever it is safe and legal to do so
23
Q
An en-route inspection should include checking
A
a. Cargo doors and / or cargo securement.
b. Tire temperature.
c. Brake temperature
24
Q
Where or when should you test the stopping action of your service brakes?
A
When the vehicle is moving at about 5 MPH
25
Stab braking
Involves locking the wheels
26
Which of these statements about using turn signals is true?
When turning, you should signal early
27
Retarders
Can cause the vehicle to skid when the road is slippery
28
Which of these statements about staying alert to drive is true?
The only thing that can cure fatigue is sleep.
29
You are driving on a two lane road. An oncoming driver drifts into your lane and is headed straight for you. Which of these is generally the best action?
Steer to the right
30
You should avoid driving through deep puddles or flowing water. But if you must, which of these steps can help keep your brakes working?
Gently pressing the brake pedal while driving through the water
31
Which of these statements about brakes is true
The heavier a vehicle or the faster it is moving, the more heat the brakes have to absorb to stop it
32
What should you do when your vehicle hydroplanes?
Release the accelerator
33
Which fires can you use water to put out?
Tire fires
34
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?
Heavy vehicles can almost always turn more quickly than they can stop.
35
Which of these is a sign of tire failure?
a. Steering that feels heavy.
b. Vibration.
c. A loud bang
36
Which of these statements about drinking alcohol is true?
A few beers have the same effect on driving as a few shots of whisky
37
Which of these can help you stay alert while driving?
Taking short breaks before you are drowsy
38
Which one of these is not part of the check of the engine compartment done for a pre trip inspection?
Valve clearance
39
According to the driver's manual, why should you limit the use of your horn?
It can startle other drivers
40
You are traveling 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
41
How far should a driver look ahead of the vehicle while driving?
12-15 seconds
42
Which of these statements about cargo loading is true?
State laws dictate legal weight limits
43
Which of these statements about marking a stopped vehicle is true?
If a hill or curve keeps drivers behind you from seeing the vehicle within 500 feet, the rear reflective triangle should be moved back down the road to give adequate warning
44
You are driving a 40 foot vehicle at 45 MPH. Driving conditions are ideal (dry pavement, good visibility). What is the least amount of space that you should keep in front of your vehicle to be safe?
5 seconds
45
The amount of liquid to load into a tank depends on
a. The weight of the liquid.
b. The legal weight limits.
c. The amount of liquid will expand in transit
46
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
47
You should use your mirrors to check
a. Traffic gaps before you merge.
b. The condition of the tires and cargo.
c. Where the rear of your vehicle is while you make turns
48
The proper way to hold a steering wheel is at clock positions ____ and ____.
3 and 9
49
Cargo inspections
Should be performed after every break you take while driving
50
Your brakes can get wet when you drive through a heavy rain. What can this cause when the brakes are applied?
a. Lack of braking power
b. Trailer jackknife
c. Wheel lockup
51
How do you test hydraulic brakes for leaks?
With the vehicle stopped, pump the pedal three times, apply firm pressure for 5 seconds, then hold and see if the pedal moves.
52
Which of these is a good rule to follow when driving at night.
Keep your speed slow enough that you can stop within the range of your headlights
53
A vehicle is loaded with very little weight on the drive axle. What may result?
Poor traction
54
The key principle in balancing cargo weight is to keep the load
Balanced in the cargo area
55
Which of these statements about using mirrors is true?
There are blind spots that your mirrors cannot show you
56
Which of these statements about cold weather driving is true?
Windshield washer antifreeze should be added to the washer reservoir.
57
The most important reason for being alert to hazards is so:
You will have time to plan your escape if the hazard becomes an emergency
58
Which of these is a good rule to follow when using a fire extinguisher?
Aim at the base of the fire.
59
Is it legal to drive with one fourth of a vehicles leaf springs broken or missing?
No
60
You have left the road in an emergency condition, it is impossible for you to come to a stop prior to returning to the road, which of the following is the best action to take?
Reduce your speed to 20 mph or less before returning to the road
61
Which of these statements about down shifting is true
When you down shift for a curve, you should do so before you enter the curve
62
Which of these statements about drugs is true?
Use of drugs can lead to accidents and / or arrest
63
To avoid a crash, you had to drive onto the right shoulder. You are now driving at 40 MPH on the shoulder. How should you move back onto the pavement?
Come to a complete stop, if possible, before steering back onto the pavement
64
Which of these statements about managing space is true?
When the road is slippery, you should keep much more space in front of your vehicle
65
Which of these is the most important things to remember about emergency braking?
If the wheels are skidding you cannot control vehicle
66
To correct a rear wheel (drive wheel) braking skid, you should
Release brakes and accelerate
67
While driving, ice builds up on your wipers and they no longer clean the windshield. You should
Pull over in a safe place and remove the ice
68
The road you are driving on becomes very slippery due to glare ice., Which of these is a good thing to do in such a situation?
Stop driving and park where it is safe to do so
69
You must park on the side of a level, straight, two lane road. Where should you place the three reflective triangles?
One within 10 feet of the rear of the vehicle, one about 100 feet to the rear, and one about 100 feet from the front of the vehicle
70
You are driving in the right lane of a four lane, undivided road, you come over a hill and find a car stopped ahead in your lane. You do not have roomed to stop, and the hill blocks your view to the rear. Which of these is most likely the best action to take?
Steer to the right
71
You are checking your tires for a pre trip inspection. Which of these statements is true?
Tires of mismatched sizes should not be used on the same vehicle.
72
The first step to take if your vehicle catches fire while driving is
Get the vehicle off the road and stop in an open area
73
Which of these statements about double clutching and shifting is true?
You can use the tachometer to tell you when to shift
74
The center of gravity of a load
Can make a vehicle more likely to tip over on curves
75
You are testing the stopping action of service brakes on a hydraulic system. Which of these can mean there is a problem?
a. The brake pedal goes to the floor
b. Stopping action is delayed.
c. The vehicle pulls to one side when the brake pedal is pressed
76
The distance that you should look ahead of your vehicle while driving amounts to about ____ at highway speed
1/4 mile
77
Which of these statements about tires and hot weather driving is true?
You should inspect your tires more often because they are more likely to fail
78
You are driving a 40 foot vehicle at 35 mph. Driving conditions are ideal (dry pavement, good visibility). What is the least amount of space that you should keep in front of your vehicle to be safe?
4 seconds
79
A moving vehicle ahead of you has a red triangle with an orange center on the rear. What does this mean?
It may be a slow moving vehicle
80
Which of these statements about drinking alcohol is true
a. Alcohol first affects judgement and self-control, which are essential for safe driving.
b. Statistics show that drivers who have been drinking have a much greater chance of being in a crash.
c. A driver can lose his / her license for driving while under the influence of alcohol
81
On which fires can you use the "ABC" fire extinguisher?
a. Electrical fires.
b. Burning fires.
c. Burning cloth.
82
Which of these statements about speed management is true?
You should choose a speed that lets you stop within the distance that you can see ahead
83
Cargo that can shift should have at least ____ tie downs
2
84
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
85
hich of these is a proper use of vehicle lights and flashers?
a. Flashing your brake lights to warn someone behind you of a hazard that will require slowing down.
b. Turning on your headlights during the day when visibility is reduced due to rain or snow.
c. Flashing your brake lights to warn someone behind you that you're are going to stop on the road.
86
Which of these statements about crossing or entering traffic with a heavy vehicle is true?
Heavy vehicles need larger gaps in traffic than cars
87
You are checking your wheels and rims for a pre trip inspection. Which of these statements is true?
Rust around wheel nuts may mean that they are loose
88
Controlled braking
Is used to keep a vehicle from skidding
89
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
90
Which of these statements about escape ramps is true?
a. They protect equipment and cargo from severe damage.
b. They are designed to prevent injury to drivers and passengers.
c. They are used to stop vehicles that lose their brakes on downhill grades
91
Which of these tell you that cargo contains hazardous materials?
a. A four inch, diamond shaped hazardous materials label on the container.
b. The name of the hazard class on the shipping paper.
c. A hazardous materials placard on the vehicle
92
To prevent shifting, there should be at least one tie down for every ____ feet of cargo
10
93
Cargo covers
a. Protect people from spilled cargo.
b. Protect cargo from weather.
c. May be required by law
94
Which of these statements about accelerating is true?
Improper acceleration can cause mechanical damage
95
You are driving a heavy vehicle with a manual transmission. You have to stop the vehicle on the shoulder while driving on an upgrade. Which of these is a good rule to follow when putting it back in motion
Use the parking brake to hold the vehicle until the clutch engages
96
Which of these can cause a fire?
a. Loose fuel connections.
b. Under-inflated tires.
c. Electrical short-circuits
97
You are checking your steering and exhaust systems for a pre-trip inspection. Which of these statements is true?
Steering wheel play of more than 10 degrees (2 inches on a 20-inch steering wheel) can make it hard to steer
98
A vehicle is loaded with most of the weight on the steering axle. What may result?
Hard steering and possible breakdown
99
If you are convicted for driving under the influence while driving a commercial vehicle, and this is your first offence, you will most likely get
At least a one-year suspension of your CDL
100
Some liquid tanks are divided into several smaller tanks by
Bulkheads
101
Front end header boards
a. Block the forward movement of your cargo
| b. Protect you from your cargo in case of collision
102
The height of the vehicle center of gravity is very important for safe handling. A high center of gravity means you are more likely to do the following
Roll over
103
The load means the following?
The maximum safe weight a tire can carry at a specified pressure
104
Whether or not you load and secure your load yourself, you are responsible for
a. Knowing your cargo is securely tied down and covered
b. Inspecting your cargo
c. Recognizing overloads and poorly balanced weight
105
When approaching a curve you should
Downshift before entering the curve and accelerate slightly as you go through it
106
Which of these statements about driving in areas with strong winds is true?
Winds are especially a problem when coming out of tunnels
107
You are driving a heavy vehicle. You must exit a highway using an off-ramp that curves downhill. You should
Slow down to a safe speed before the turn
108
Which of these is a good rule to follow when steering to avoid a crash?
Don't turn any more than is needed to clear what is in your way
109
Which of these statements about downshifting for a long downhill grade is true?
It allows engine compression and friction to help the brakes slow the vehicle
110
How do you correct a rear wheel acceleration skid?
Stop accelerating
111
Which of these statements about overhead clearance is true?
A vehicles clearance can change with the load carried
112
Medical certificates must be renewed every
Two years
113
During a pre-trip inspection you discover an exhaust leak or power steering leak, you should
Report the problem and make arrangements for another bus to use
114
During what time in your pre-trip inspection do you check the back emergency door? (to insure it is closed.)
During step four (lights first half) the inside walk through
115
Inspect your cargo after you have driven
25 miles
116
Axle weight means the following?
The weight transmitted to the ground by one axle or one set of axles
117
Blocking your cargo to keep it from sliding must be done
a. Side of cargo
b. Back of cargo
c. Front of cargo
118
The basic two reasons to cover your cargo are 1) to protect the cargo from the weather and 2)
a. Protect people from spilled cargo
b. Protect vehicle following you from spilled cargo
c. Protect the roadway from spilled cargo
119
Overlenght, overwidth, and / or overweight loads require
a. Flashing lights
b. Driving limited to certain times
c. Special transit permits
120
Turn signals should be used
At least 100ft. Before turning or changing lanes
121
Which of these statements about speed management is true?
a. On a wet road, you should reduce your speed by about 1/3.
b. On packed snow, you should reduce your speed by about 1/2.
c. When the road is slippery, it will take longer to stop and it will be harder to turn without skidding
122
You are driving on a straight, level highway at 50 mph. There are no 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 slows down on its own
123
As the blood alcohol concentration (BAC) goes up, what happens?
The person becomes more dangerous if allowed to drive
124
Which of these will help keep an engine cool in hot weather?
a. Making sure the engine has the right amount of oil.
b. Properly adjusted v-belts.
c. Avoiding high speed driving
125
What is hydroplaining?
Is more likely if tire pressure is low
126
When a vehicle is carrying a load at night, which extends four feet or more beyond the rear of the body, there must be ____ at the extreme end of the load
2 red lights
127
When checking the bus seats, what are you looking for?
a. To insure they are securely fastened to the bus.
b. To see if they have been removed.
c. To insure the seat and back portions are not loose.
128
You must inspect your cargo
a. After every break
b. Every 3 hours or 150 miles
c. Before starting
129
Tie downs must be of the proper type and strength. The combined strength of cargo tie downs must be strong enough to lift.
One and one half times the weight of the cargo tied down
130
Tank vehicles are used to carry any liquid and are dangerous to drive because
a. Danger of load surge
| b. High center of gravity
131
Gross Vehicle Weight Rating (GVWR) means the following?
Maximum gvw specified by manufacture for a single vehicle plus load
132
Gross Vehicle Weight (GVW) means the following
Total weight of a single vehicle plus its load
133
Prior to driving, what are some of the items you should check the interior of the bus for?
a. Schoolbooks and students belongings.
b. A student or other passengers
c. Trash and clothing
134
How far can the board of education make a student walk to their assigned pick up location?
1/2 mile
135
There are three types of vehicle inspections, which one is one of them?
a. Post-trip
b. Enroute
c. Pre-trip
136
You are checking your brakes and suspension system for a pre trip inspection. Which of these statements is true?
a. Brake pads should not have brake fluid on them.
b. One missing leaf in a leaf spring can be dangerous.
c. Brake shoes should be at least 1/32 inch thick.
137
You must park on the side of a level, straight, four lane, divided highway. Where should you place the three reflective triangles?
One within 10 feet of the rear of the vehicle, one about 100 feet to the rear, and one about 200 feet to the rear.
138
Which of these statements about engine overheating is true?
You should never remove the radiator cap on a pressurized system.
139
Some traffic emergencies may require you to leave the road. Which of these is a good thing to remember?
If you must leave the road, try to get all wheels off the pavement, or at least one side of vehicles tires off the road.
140
When looking ahead of your vehicle while driving you should look
Back and forth, near and far
141
Which of these items is checked in a pre trip inspection?
a. Whether all vehicle lights are working and are clean.
b. Cargo securement.
c. Wiper blades.
142
The "reaction distance" is the distance traveled from the time
The brain tells the foot to push the brake pedal to the time the foot actually pushes the pedal
143
Which of these statements about vehicle fires is true?
A burning tire must be cooled
144
Which of these is the most important thing to remember about emergency braking?
If the wheels are skidding, you cannot control the vehicle
145
When driving a commercial vehicle with a height over 13 feet, you should
If you aren’t sure a clearance is high enough, stop and make sure
146
The Gross Combination Weight (GCW) means the following?
The total weight of a powered unit plus trailer(s) plus the cargo
147
Too much weight on the steering axle can cause the following
a. Hard steering
b. Damage to the tires
c. Damage to the steering axle
148
Cargo should have at least one tie down for each
10 feet of cargo
149
The purpose of a baffle is to
Control the load surge
150
The new BAC (Blood Alcohol Concentration) for commercial drivers to be Considered intoxicated when driving a commercial vehicle is
.08
151
Which of these is a good driving rule for work zones?
a. Turn on you flashers / hazard lights
b. Use your brake lights to warn drivers behind you.
c. Drive slowly
152
Brake "fade"
Can be caused by the brakes becoming too hot
153
ou do not have a hazardous materials endorsement on your commercial driver's license. You are asked to haul hazardous materials in a placarded vehicle. You should
Refuse to haul the load
154
You should stop driving
When you become sleepy
155
Which of these statements about downshifting is true?
When you downshift for a curve, you should do so before you enter the curve
156
For your safety, when setting out reflective triangles you should
Hold the triangles between your body and oncoming traffic
157
You must drive on a slippery road. Which of these is a good thing to do in such a situation?
Slow down gradually
158
Cargo that is not loaded or secured properly can cause many problems. Which of these statements is true?
a. Other highway users can hit or be hit by loose cargo.
b. Loose cargo can cause injury to the driver or passengers during a quick stop or crash.
c. Overloading can damage vehicle.
159
Which item below lists almost all or all the emergency equipment that is required on a school bus?
A fire extinguisher, flashlight, fusees, electrical fuses (if your vehicle uses them), a crow bar, emergency triangles, and a first aid kit (with an emergency medical card for each student inside the first aid kit)
160
As part of your pre trip inspection you must
a. Check for poorly balanced weight
b. Check if cargo is secured
c. Check for overloads
161
No matter how small the cargo is, it should have at least
Two tie downs
162
Overloading can have a bad effect on?
a. Speed control
b. Steering
c. Braking
163
Where should you ignition key be during your pre-trip inspection?
In your pocket
164
Dry bulk tanks require special care because
a. The load can shift
| b. They have a high center of gravity
165
Under loaded front axles can cause the following
a. Too much play in the steering wheel
b. Poor traction
c. Damage to the tires.
