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1 / 40
A. Your foot can get tired.
B. Brakes can grab or become weak.
C. Brakes can work better.
Water in the brakes can cause the brakes to be weak, to apply unevenly, or to grab. This can cause lack of braking power, wheel lockups, pulling to one side or the other, and jackknife if you pull a trailer.
2 / 40
A. Increase the space in front of you
B. Flash your brake lights
C. Signal the tailgater when it is safe to pass
D. Speed up
If you find yourself being tailgated, here are some things you can do to reduce the chances of a crash: avoid quick changes, increase your following distance opening up room in front of you will make it easier for the tailgater to get around you, don't speed up.
3 / 40
A. Pull over in a safe place and remove the ice
B. Keep driving, and reach out the window and knock the ice off
C. Keep driving, and turn your defroster on
Before the ice buildup becomes dangerous you should stop in a safe location and clear off the ice. With ice on the wiper blade it might not clear the windshield enough for safe driving.
4 / 40
A. It is very sticky and slows down your vehicle.
B. Tar rises to the road surface in very hot weather, causing the roads to become very slippery.
C. It does not affect the road surface or driving conditions.
Tar in the road pavement frequently rises to the surface in very hot weather. Spots where tar "bleeds" to the surface are very slippery.
5 / 40
A. Should not be used unless you have first tried all other ways to save your vehicle after brake failure on a downgrade
B. Are designed to protect vehicles from damage
C. Cannot be used by certain types of heavy vehicles
Escape ramps are made to stop runaway vehicles safely without injuring drivers and passengers.
6 / 40
A. Both of these answers are correct.
B. A hazardous materials placard is on the vehicle.
C. There is a four-inch, diamond-shaped hazardous materials h3 on the container.
If the cargo contains hazardous materials, you must inspect for proper papers, labeling, and placarding.
7 / 40
A. Call the police from your cell phone if you can do it safely.
B. Ignore rude gestures and refuse to react negatively.
C. Do all of the above.
D. Avoid eye contact.
First and foremost, make every attempt to get out of their way. Do not challenge them by speeding up, avoid eye contact, ignore gestures and refuse to react to them, and report aggressive drivers to the appropriate authorities.
8 / 40
A. are typically used for freight carried partway by rail or ship.
B. do not need to be inspected or secured by the driver.
C. should come with their own tie-down devices.
Containerized loads generally are used when freight is carried part way by rail or ship. Delivery by truck occurs at the beginning and/or end of the journey.
9 / 40
A. A need to disconnect the steering axle brakes
B. Damage to drive axle tires
C. Poor traction
D. Better handling
Too little weight on the driving axles can cause poor traction. The drive wheels may spin easily.
10 / 40
A. Use the parking brake to hold the vehicle until the clutch engages
B. Let the vehicle roll backwards a few feet before you engage the clutch
C. Keep the clutch slipping while slowly accelerating
D. Let the vehicle roll backwards a few feet before you engage the clutch, but turn the wheel so that the back moves away from the roadway
Keeping the parking brake set until you can feel the pull of the vehicle against the brakes will help you get moving on an uphill grade without rolling backwards.
11 / 40
A. Yes, but only on wet surfaces.
B. Yes, but only if the trucks are newer than 1998.
C. Yes.
D. No.
Empty trucks require greater stopping distances because an empty vehicle has less traction.
12 / 40
A. Mail or delivery truck drivers do not pose a hazard.
B. Drivers using turn signals can be trusted to turn in the direction they indicate.
C. Short-term or daily rental truck drivers are often not used to the limited vision and pose a hazard.
Be alert for drivers whose vision is blocked. Vans loaded station wagons, and cars with the rear window blocked are examples. Rental trucks should be watched carefully. Their drivers are often not used to the limited vision they have to the sides and rear of the truck.
13 / 40
A. Both of the above answers are true.
B. On a wet road, you should reduce your speed by about 1/3.
C. On packed snow, you should reduce your speed by about 1/2.
Wet roads can double stopping distance. You must drive slower to be able to stop in the same distance as on a dry road. Reduce speed by about one-third on a wet road. On packed snow, reduce speed by a half, or more. If the surface is icy, reduce speed to a crawl and stop driving as soon as you can safely do so.
14 / 40
A. reaction distance + viewing distance + braking distance.
B. reaction distance + braking distance.
C. perception distance + reaction distance + braking distance.
D. braking distance + stopping distance.
Stopping distance is the sum of your Perception Distance + Reaction Distance + Braking Distance. In vehicles with air brakes you must include the brake lag distance.
15 / 40
A. They can be used while driving as long as you only take half the regular dose.
B. They often make you sleepy. Therefore, they should not be used while driving.
C. They should only be used when driving during the daytime.
This includes a variety of prescription and over-the counter drugs or cold medicines, which may make the driver drowsy or otherwise affect safe driving ability.
16 / 40
A. You can check the tightness of belts by pressing on them.
B. Loose belts will not turn the water pump and/or fan on properly.
C. Cracking is likely to occur, but it is not a safety threat.
Learn how to check v-belt tightness on your vehicle by pressing on the belts. Loose belts will not turn the water pump and/or fan properly. This will result in overheating. Also, check belts for cracking or other signs of wear.
17 / 40
A. You should not downshift if you have an automatic transmission
B. Pumping the brake pedal may bring the pressure up so you can stop the vehicle
C. The parking brake will not work either because it is part of the same hydraulic system
Sometimes pumping the brake pedal will generate enough hydraulic pressure to stop the vehicle.
18 / 40
A. Be aware that a tire has failed.
B. Stay off the brake pedal.
C. Brake hard and immediately.
D. Hold the steering wheel firmly.
To respond to tire failure: you must immediately: hold the steering wheel firmly, stay off the brake, and check the tires after you've come to a stop.
19 / 40
A. have low centers of gravity.
B. do not require special care.
C. are unstable loads.
Hanging meat and dry bulk can be a very unstable load with a high center of gravity. Particular caution is needed on sharp curves such as off ramps and on ramps. Go slowly.
20 / 40
A. Basic chemistry
B. When to use placards
C. Which products can be loaded together
Hazardous materials drivers must also know which products they can load together, and which they cannot, when to use placards.
21 / 40
A. A glass of water
B. Time
C. Fresh air
D. Coffee
The liver can only process one-third an ounce of alcohol per hour, which is considerably less than the alcohol in a standard drink. This is a fixed rate, so only time, not black coffee or a cold shower, will sober you up.
22 / 40
A. Keep the vehicle's taillights on to warn other drivers.
B. Put out your emergency warning devices within five minutes.
C. Move the rear reflective triangle back if the driver's vision is obscured to within 500 feet.
If line of sight view is obstructed due to hill or curve, move the rear-most triangle to a point back down the road (up to 500 feet) so warning is provided.
23 / 40
A. driving too fast for road conditions.
B. overinflated tires.
C. poorly adjusted brakes.
Driving too fast is a major cause of fatal crashes. You must adjust your speed depending on driving conditions. These include traction, curves, visibility, traffic and hills.
24 / 40
A. Before and after signaling the change
B. After starting and after completing the lane change
C. Both of the above
You need to check your mirrors to make sure no one is alongside you or about to pass you. Check your mirrors: before you change lanes, after you have signaled, right after you start the lane change, and after you complete the lane change.
25 / 40
A. make objects appear closer than they really are.
B. make objects appear larger than they really are.
C. show a wider area than flat mirrors.
Many large vehicles have curved mirrors that show a wider area than flat mirrors. This is often helpful, but everything appears smaller in a convex mirror than it would if you were looking at it directly. Things also seem farther away than they really are.
26 / 40
A. 10 to 12 seconds
B. 5 to 10 seconds
C. 7 to 12 seconds
D. 12 to 15 seconds
Most good drivers look at least 12 to 15 seconds ahead. That means looking ahead the distance you will travel in 12 to 15 seconds.
27 / 40
A. should be designed for truck navigation.
B. should have a screen larger than 4 inches.
C. should be made in the USA.
Most GPS devices are made for cars or other smaller vehicles, and so not have the size or weight of large vehicles programmed in. Make sure your GPS device is designed for large commercial vehicles.
28 / 40
A. frame and cross members
B. air lines and electrical wiring
C. primary and secondary safety cab locks
Air lines and electrical wiring needs to be secured against snagging, rubbing, wearing.
29 / 40
A. One block
B. 32 feet
C. Two Vehicle lengths ahead
Most good drivers look at least 12 to 15 seconds ahead. At lower speeds, that's about one block. At highway speeds it's about a quarter of a mile.
30 / 40
A. Rust around wheel nuts may mean that they are loose
B. Cracked wheels or rims can be used if they have been welded
C. A vehicle can be safely driven with one missing lug nut on a wheel
D. Mismatched lock rings can be used on the same vehicle
When checking the wheels and rims check for: damaged rims. rust around wheel nuts may mean the nuts are loose--check tightness, missing clamps, spacers, studs, or lugs, mismatched, bent, or cracked lock rings, and wheels or rims that have had welding repairs are not safe.
31 / 40
A. read maps or use your phone only when there are no other vehicles around you.
B. eat, drink, and smoke only on straight portions of the road.
C. have all your emotionally difficult conversations in the first hour of driving.
D. avoid using your cell phone until you reach your destination.
Activities inside of the vehicle that can distract your attention include: talking to passengers; adjusting the radio, CD player or climate controls; eating, drinking or smoking; reading maps or other literature; picking up something that fell; reading or sending text messages. To name a few.
32 / 40
A. Not having sufficient space to drive all the way through without stopping
B. Both of the above
C. Getting stuck on the tracks because of insufficient clearance
You will lose your CDL for at least 60 days for your first violation of the following six offenses: failing to stop if the tracks are not clear, failing to slow down and check that the tracks are clear of an approaching train, failing to stop before driving onto the crossing, failing to have sufficient space to drive completely through the crossing without stopping, failing to obey a traffic control device or the directions of an enforcement official at the crossing, failing to negotiate a crossing because of insufficient undercarriage clearance.
33 / 40
A. Burning tires or cloth
B. Electrical fires
C. Both of the above
The ABC type is designed to work on electrical fires, burning liquids, wood, paper, and cloth as well.
34 / 40
A. If a qualified person is helping them, stay out of the way unless asked to assist.
B. Move severely injured persons if there is a danger due to fire or passing traffic.
C. Allow injured persons to become chilled or overheated.
If a qualified person is at the accident and helping the injured, stay out of the way unless asked to assist. Otherwise, do the best you can to help any injured parties: don't move a severely injured person unless the danger of fire or passing traffic, stop heavy bleeding by applying, and keep the injured person warm.
35 / 40
A. Most hazards are more easily seen at night than during the day.
B. Many heavy vehicle accidents occur between midnight and 6 a.m.
C. Most people are more alert at night than during the day.
If possible, try to schedule trips for the hours you are normally awake. Many heavy motor vehicle accidents occur between midnight and 6 a.m.
36 / 40
A. 4
B. 1
C. 3
Safety requirements call for three red reflective triangles.
37 / 40
A. Yes
B. No
C. It doesn't make any difference if you drive slowly
Check for missing or broken leaves in any leaf spring. If one-fourth or more are missing, it will put the vehicle "out of service", but any defect could be dangerous.
38 / 40
A. the vehicle does not require placards.
B. the cargo will be transported less than 100 miles.
C. someone who has the Hazardous Materials Endorsement rides with you.
39 / 40
A. Underinflated tires
B. All of the above
C. Overinflated tires
D. Cold tires
Under-inflated tires and duals that touch are the most common causes of tire fires.
40 / 40
A. You might damage your leaf springs.
B. All of the above might happen.
C. Someone might try to pass you on your right.
D. Someone might try to pass you on your left.
If you are driving a truck or bus that cannot make the right turn without swinging into another lane, turn wide as you complete the turn. Don't turn wide to the left as you start the turn. A following driver may think you are turning left and try to pass you on the right.
1 / 40
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