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1 / 40
A. Release the brake when you are 5mph below your safe speed, then let your speed come back up to your safe speed and repeat.
B. Light steady pressure
C. Light, pumping action
Once the vehicle is in the proper low gear, the following are the proper braking techniques: 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. When your speed has increased to your "safe" speed, repeat.
2 / 40
A. 100 feet, 200 feet, and 300 feet toward approaching traffic
B. 20 feet, 50 feet, and 100 feet toward approaching traffic
C. 50 feet, 100 feet, and 150 feet toward approaching traffic
D. 10 feet, 100 feet, and 200 feet toward approaching traffic
If you must stop on or by a one-way or divided highway, place warning devices 10 feet, 100 feet, and 200 feet toward the approaching traffic.
3 / 40
A. You should back and turn toward the driver's side whenever possible
B. Backing is always dangerous
C. You should use a helper and communicate with hand signals
D. All answers are correct are true
Because you cannot see everything behind your vehicle, backing is always dangerous. Avoid backing whenever you can. When you have to back, here are a few simple safety rules: Start in the proper position, look at your path, use mirrors on both sides, back slowly, back and turn toward the driver's side whenever possible, and use a helper with clear hand signals whenever possible.
4 / 40
A. One year
B. Two years
C. Four years
A DOT physical exam is valid for up to 24 months. The medical examiner may also issue a medical examiner's certificate for less than 24 months when it is desirable to monitor a condition, such as high blood pressure.
5 / 40
A. involves steady pressure on the brake pedal without locking the wheels.
B. involves releasing the brakes only after the wheels lock up.
C. should never be used.
With the stab braking method, you apply your brakes all the way and release brakes when wheels lock up.
6 / 40
A. Can cause the vehicle to skid when the road is slippery
B. Cannot be used on interstate highways
C. Allow you to disconnect the steering axle brakes
D. ’s
When your drive wheels have poor traction, the retarder may cause them to skid. Therefore, you should turn the retarder off whenever the road is wet, icy, or snow covered.
7 / 40
A. 3
B. 2
C. 1
No matter how small the cargo, it should have at least two tie-downs.
8 / 40
A. Braking
B. Steering
C. All answers are correct
D. Speed control
Overloading can have bad effects on steering, braking, and speed control. Overloaded trucks have to go very slowly on upgrades, and they may gain too much speed on downgrades. Stopping distance increases. Brakes can fail when forced to work too hard.
9 / 40
A. All answers are correct
B. A four-inch, diamond shaped, hazardous materials label on the container
C. Hazardous material placards on the vehicle
D. The name of the hazard class on the shipping paper
Shipping papers listing a hazard class, hazardous material labels on the cargo, or placards on the vehicle all show the driver that the load contains hazardous material.
10 / 40
A. Cargo doors and cargo securement
B. Tire temperature
C. All answers are correct
D. Brake temperature
For an en-route Inspection. Check the, tires, wheels, and truck body for signs of heat whenever you stop during a trip. Also check for cargo securement at each stop.
11 / 40
A. Scream for help.
B. Stay in your vehicle.
C. Get out of your vehicle and away from the tracks.
If for any reason you get stuck on the tracks, get out of the vehicle and away from the tracks. Check signposts or signal housing at the crossing for emergency notification information. Call 911 and give the location of the crossing using all identifiable landmarks, especially the DOT number, if posted.
12 / 40
A. Control the load surge
B. To keep expansion of load down
C. No answers are correct
D. Separate the load
Baffled liquid tanks have bulkheads in them with holes that let the liquid flow through. The baffles help to control the forward and backward liquid surge. Side-to-side surge can still occur.
13 / 40
A. gross combination weight.
B. gross axle weight.
C. gross vehicle weight.
Gross Combination Weight (GCW) is the total weight of a powered unit, plus trailer(s), plus the cargo.
14 / 40
A. Be placed out of service for 48 hours
B. Be placed out of service for 24 hours
C. Be placed out of service for 72 hours
You will be put out-of-service for 24 hours if you have any detectable amount of alcohol under .04%.
15 / 40
A. Immediately open the door and jump out
B. Head for the nearest service station
C. Get the vehicle off the road and stop in an open area
The first step is to get the vehicle off the road and stop. In doing so: park in an open area, away from buildings, trees, brush, other vehicles, or anything that might catch fire. Don't pull into a service station!
16 / 40
A. Radial and bias-ply tires can be used together on the same vehicle
B. Dual tires should be touching each other
C. Tires of mismatched sizes should not be used on the same vehicle
Tire problems include: too much or too little air pressure, bad wear, at least 4/32-inch tread depth on front tires, 2/32 inch on all other tires, no fabric should show through the tread or sidewall, cuts or other damage, tread separation, dual tires that come in contact with each other or parts of the vehicle, mismatched sizes, radial and bias-ply tires used together.
17 / 40
A. take a short break once or twice during the trip when you are feeling tired or drowsy.
B. avoid short breaks but keep the window open.
C. stop often and take short breaks before you feel really drowsy or tired.
Short breaks can keep you alert. But the time to take them is before you feel really drowsy or tired. Stop often. Walk around and inspect your vehicle. It may help to do some physical exercises.
18 / 40
A. Because you have blind spots
B. Because you are providing a job for someone else
C. Because people feel more comfortable when you do
D. For all of the above reasons
There are blind spots you can't see. That's why a helper is important. The helper should stand near the back of your vehicle where you can see the helper.
19 / 40
A. Brake hard to slow the vehicle then, steer sharply onto the pavement
B. Come to a complete stop if possible, before steering back onto the pavement
C. Keep moving at the present speed and steer very gently back onto the pavement
If the shoulder is clear, stay on it until your vehicle has come to a stop. Signal and check your mirrors before pulling back onto the road.
20 / 40
A. 14 seconds
B. More than 30 seconds
C. More than 15 seconds
D. 10 seconds
It takes a typical tractor-trailer unit at least 14 seconds to clear a single track and more than 15 seconds to clear a double track.
21 / 40
A. 1 mile
B. 1/4 mile
C. 25 feet
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. At lower speeds, that's about one block. At highway speeds it's about a quarter of a mile.
22 / 40
A. Something you must stop for
B. A road user or road condition that presents a possible danger
C. Something you can safely ignore
D. Something you can easily avoid
A hazard is any road condition or other road user (driver, bicyclist, pedestrian) that is a possible danger.
23 / 40
A. Wiper blades
B. Cargo securement
C. Whether all vehicle lights are working and are clean
D. All answers are correct
During the pre-trip inspection the lights and covers need to be working and clean, wiper blades in good condition, and the cargo needs to be secured.
24 / 40
A. 3/32 inch
B. 4/32 inch
C. 2/32 inch
You must have at least 4/32-inch tread depth in every major groove on front tires and at least 2/32-inch on other tires
25 / 40
A. Yes, and they might place it out of service.
B. Yes, but they will not place it out of service.
C. No.
Federal and state inspectors also may inspect your vehicles. If they judge the vehicle to be unsafe, they will put it "out of service" until it is fixed.
26 / 40
A. will have no effect at all.
B. will cool them down. You will be able to continue your trip sooner.
C. is a good idea because the extra pressure will be relieved.
D. is a bad idea because when the tires cool off, the pressure will be too low.
Air pressure increases with temperature. Do not let air out or the pressure will be too low when the tires cool off.
27 / 40
A. A half-hour break for coffee will do more to keep you alert that a half-hour nap
B. There are drugs that can overcome being tired
C. The only thing that can cure fatigue is sleep
D. If you must stop to take a nap, it should be at a truck stop or other public area never on the side of the road
If you are drowsy, the only safe cure is to get off the road and get some sleep. If you don't, you risk your life and the lives of others.
28 / 40
A. 216 feet
B. 215 feet
C. 214 feet
Braking distance is the distance your vehicle will travel, in ideal conditions; while you are braking. At 55 mph on dry pavement with good brakes, it can take about 216 feet.
29 / 40
A. –9 hours of sleep beforehand.
B. avoid medications that cause drowsiness.
C. schedule your trips for the daytime hours.
D. do all of the above.
Preventing drowsiness before a trip: Get adequate sleep (8 to 9 hours), prepare route, , schedule trips for the hours you are normally awake, drive with a passenger, avoid medications that cause drowsiness.
30 / 40
A. ease into the other lane slowly so the other car can get out of the way.
B. wait until you are sure the car isn't in your blind spot.
C. assume the car left the roadway and change lanes as usual.
Before you change lanes, you must first make sure that no vehicles are hiding in your blind spots.
31 / 40
A. Tap the electrical horn first
B. Use your high beams until you completely pass
C. Signal early
Whenever you are about to pass a vehicle, pedestrian, or bicyclist, assume they don't see you. They could suddenly move in front of you. When it is legal, tap the horn lightly or, at night, flash your lights from low to high beam and back.
32 / 40
A. 7 seconds
B. 6 seconds
C. 3 seconds
D. 4 seconds
One good rule says you need at least one second for each 10 feet of vehicle length at speeds below 40 mph. At greater speeds, you must add 1 second for safety.
33 / 40
A. exit the roadway until traffic is lighter.
B. drive on the shoulder so that others can pass you easily.
C. shift into a lower gear.
Heavy vehicles are often tailgated when they can't keep up with the speed of traffic. This often happens when you're going uphill. If a heavy load is slowing you down, stay in the right lane if you can. Going uphill, you should not pass another slow vehicle unless you can get around quickly and safely.
34 / 40
A. Applying hard pressure on both the brake pedal and accelerator after coming out of the water
B. Driving through quickly
C. Gently pressing the brake pedal while driving through the water
D. Turning on your brake heaters
Gently put on the brakes. This presses linings against brake drums or discs and keeps mud, silt, sand, and water from getting in.
35 / 40
A. A vehicle's clearance can change with the load carried
B. Extra speed will cause air to push your vehicle down for extra clearance
C. If the road surface causes your vehicle to tilt toward objects at the edge of the road, you should drive close to the shoulder
D. You should assume the posted clearance signs are correct
The weight of a cargo van changes its height. An empty van is higher than a loaded one. That you got under a bridge when you were loaded does not mean that you can do it when you are empty.
36 / 40
A. Steer into the oncoming lanes
B. Steer into the left lane
C. Steer to the right
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. If you are blocked on both sides, a move to the right may be best. At least you won't force anyone into an opposing traffic lane and a possible head-on collision.
37 / 40
A. The eyes see a hazard to the time the foot pushes the brake pedal
B. The brake pedal is pressed to the time the brakes begin to slow the vehicle
C. The brain tells the foot to push the brake pedal to the time the foot pushes the pedal
D. The eyes see a hazard to the time the brain knows that it is a hazard
¾ second to 1 second. At 55 mph this accounts for 61 feet traveled.
38 / 40
A. the eyes see a hazard to the time the brain knows that it is a hazard.
B. the brain tells the foot to push the brake pedal to the time the foot actually pushes the pedal.
C. the eyes see a hazard to the time the foot pushes the brake pedal.
¾ second to 1 second.
39 / 40
A. a yellow malfunction lamp on the right side of the dolly.
B. a yellow malfunction lamp on the left side of the dolly.
C. a yellow malfunction lamp in the center of the dolly.
Converter dollies built on or after March 1, 1998, are required to have antilock brakes. These dollies will have a yellow lamp on the left side of the dolly.
40 / 40
A. Can be corrected by letting up on the brakes for 1-2 seconds and then reapply them
B. Only occurs with drum brakes
C. Can be caused by the brakes becoming too hot
Brake fade results from excessive heat causing chemical changes in the brake lining, which reduce friction, and also causing expansion of the brake drums
1 / 40
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