штат Пенсильвания
1 / 40
A. Mechanical damage
B. Tire damage
C. Damage to the coupling
Rough acceleration can cause mechanical damage. When pulling a trailer, rough acceleration can damage the coupling.
2 / 40
A. You should use a helper and communicate with hand signals
B. All answers are correct are true
C. You should back and turn toward the driver's side whenever possible
D. Backing is always dangerous
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.
3 / 40
A. Use the parking or emergency brake.
B. Pump the brakes.
C. Shift up.
When the system won't build up pressure here are some things you can do: downshift, pump the Brakes, use the parking brake, and find an Escape Route.
4 / 40
A. All answers are correct are true
B. Overloading can damage vehicle
C. Other highway users can hit or be hit by loose cargo
D. Loose cargo can cause injury to the driver or passengers during a quick stop or crash
Loose cargo that falls off a vehicle can cause traffic problems and others could be hurt or killed. Loose cargo could hurt or kill you during a quick stop or crash. Your vehicle could be damaged by an overload.
5 / 40
A. adjust to conditions while driving.
B. turn the wheel sharply for all turns.
C. brake hard at all stops.
Don't over steer, over accelerate, or over brake by adjusting to conditions while driving. These include traction, curves, visibility, traffic and hills.
6 / 40
A. Steer to the right
B. Steer into the left lane
C. Steer into the oncoming lanes
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.
7 / 40
A. 40 mph
B. 30 mph
C. 35 mph
Going with the flow of traffic is safer and easier.
8 / 40
A. Increase stopping distance
B. Increase speed going downhill
C. Tip over
D. No answers are correct
The height of the vehicle's center of gravity is very important for safe handling. A high center of gravity means you are more likely to tip over. It is most dangerous in curves, or if you have to swerve to avoid a hazard.
9 / 40
A. 3 seconds
B. 2 seconds
C. 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.
10 / 40
A. Note the problem and continue your route
B. Report the problem and arrange for another vehicle to use
C. No answers are correct
D. Go home because shouldn't drive the vehicle this way
If you find anything unsafe during the Vehicle inspection, get it fixed, or use a different vehicle. Federal and state laws forbid operating an unsafe vehicle.
11 / 40
A. Apply the brakes while turning
B. Don't turn any more than is needed to clear what is in your way
C. Steer with one hand so that you can turn the wheel more quickly
Do not turn any more than needed to clear whatever is in your way. The more sharply you turn, the greater the chances of a skid or rollover.
12 / 40
A. Both A and B.
B. Honk and stay close behind the car.
C. Slow down to prevent a crash.
D. Signal and change lanes to avoid the car if possible.
What you should do is make a lane change or slow down to prevent a crash if the car suddenly cuts in front of you, and you should not honk or stay close behind the car.
13 / 40
A. Try a lower gear
B. Take your foot off the accelerator and apply the brakes
C. Take your foot off the accelerator
Skids caused by acceleration usually happen on ice or snow. Taking your foot off the accelerator can easily stop them. If it is very slippery, push the clutch in. Otherwise, the engine can keep the wheels from rolling freely and regaining traction.
14 / 40
A. The drinker can sober up in less time
B. The drinker clearly sees how alcohol is affecting them
C. The effects of alcohol decreases
D. The person becomes more dangerous if allowed to drive
Accident statistics show that the chance of a crash is much greater for drivers who have been drinking than for drivers who have not.
15 / 40
A. Stay in your vehicle and do nothing until help arrives.
B. Set out warning devices to keep other vehicles from running into the accident scene.
C. Leave your vehicle, do nothing, and get to higher ground.
D. Have a drink to calm your nerves.
When you're in an accident and not seriously hurt, you need to act to prevent further damage or injury. The basic steps to be taken at any accident are to: protect the area, notify authorities, and care for the injured.
16 / 40
A. The term "tank vehicle" refers only to those vehicles having a permanently attached tank.
B. All tank vehicles have some sort of bulkhead or baffle.
C. Special skills are required to haul liquid tanks.
Hauling liquids in tanks requires special skills because of the high center of gravity and liquid movement.
17 / 40
A. Check load stability by slightly swerving left to right in your lane.
B. Watch gauges and mirrors and use your senses to check for problems: LOOK, LISTEN, and SMELL.
C. Check your maps and directions and the weather report.
For safety you should: watch gauges for signs of trouble, use your senses to check for problems (look, listen, smell, feel), and check critical items when you stop.
18 / 40
A. Idea, predicts, decide, execute
B. Identify, predict, decide, execute
C. Identify, project, dedicate, execute
Identify, Predict, Decide, and Execute (IPDE) is the step-by-step process behind the principles of defensive driving and complexities of visual perception in traffic.
19 / 40
A. A burning tire must be cooled
B. If your engine is on fire, you should open the hood as soon as you can
C. If cargo in a van or a box trailer catches on fire, you should open the cargo doors as soon as you can
D. If a trailer is on fire, you should drive fast to put out the flames
A burning tire must be cooled. Lots of water may be required.
20 / 40
A. Oil
B. Air
C. Temp
When the engine is at operating rpms, the air pressure should build from 85 to 100 psi within 45 seconds in dual air systems.
21 / 40
A. The person becomes more dangerous if allowed to drive
B. The drinker can sober up in less time
C. The effects of alcohol decreases
D. The drinker clearly sees how alcohol is affecting them
Accident statistics show that the chance of a crash is much greater for drivers who have been drinking than for drivers who have not.
22 / 40
A. One year
B. Four years
C. Two 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.
23 / 40
A. 50 miles
B. No answers are correct
C. 25 miles
D. 100 miles
Inspect the cargo and its securing devices within the first 50 miles after beginning a trip. Make any adjustments needed.
24 / 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!
25 / 40
A. You can use the tachometer to tell you when to shift
B. Double clutching should not be used when the road is slippery
C. Double clutching should only be used with a heavy load
Use either the tachometer or the speedometer and upshift/downshift at the right rpm or road speed.
26 / 40
A. 15 feet of cargo
B. 10 feet of cargo
C. 12 feet of cargo
Cargo should have at least one tie-down for each ten feet of cargo. Make sure you have enough tiedowns to meet this need.
27 / 40
A. On the dashboard
B. In the ignition
C. Pocket on the door
D. In your pocket
Make sure the parking brake is set, turn off the engine, and take the key with you when you are not in the cab during your vehicle inspection.
28 / 40
A. Stay off the brake until the vehicle slows down on its own
B. Begin controlled or stab braking
C. Begin light braking
D. Quickly steer onto the shoulder
It's natural to want to brake in an emergency, however, braking when a tire has failed could cause loss of control. Once the vehicle has slowed down brake very gently, pull off the road, and stop.
29 / 40
A. Apply the brakes during turns
B. Slow down gradually
C. Use a smaller following distance
D. All the above
I It will take longer to stop, and it will be harder to turn without skidding, when the road is slippery. Wet roads can double stopping distance at any speed, reduce speed, and slow down gradually on a wet road.
30 / 40
A. to the rear.
B. balanced in the cargo area.
C. to the front.
Poor weight balance can make vehicle handling unsafe. The cargo should be loaded so that it is balanced in the cargo area.
31 / 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. Cannot be used by certain types of heavy vehicles
C. Are designed to protect vehicles from damage
Escape ramps are made to stop runaway vehicles safely without injuring drivers and passengers.
32 / 40
A. Not the responsibility of the driver
B. Should be performed after every break you take while driving
C. Are only needed if hazardous materials are being hauled
Re-check the cargo and securing devices as often as necessary during a trip to keep the load secure. You need to inspect again: after you have driven for 3 hours or 150 miles, and after every break you take during driving.
33 / 40
A. the engine oil flowing.
B. control of the vehicle.
C. the engine warm.
Correct shifting of gears is important. If you can't get your vehicle into the right gear while driving, you will have less control.
34 / 40
A. reduce speed only if workers are close to the roadway.
B. turn on your parking lights.
C. watch for sharp pavement drop-offs.
When people are working on the road, it is a hazard. There may be narrower lanes, sharp turns, or uneven surfaces.
35 / 40
A. Tire fires
B. Gasoline fires
C. Electrical fires
Water can be used on wood, paper, or cloth, but don't use water on an electrical fire or a gasoline fire. A burning tire must be cooled. Lots of water may be required.
36 / 40
A. Open the windows for some fresh air.
B. Drink a cup of coffee.
C. Pull off the road and get some sleep.
D. Drink energy drinks.
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.
37 / 40
A. Stop and turn your vehicle around before entering the road
B. Reduce your speed to 20 mph or less before returning to the road
C. Make sure the road is clear, and continue to return to the road
If possible, avoid using the brakes until your speed has dropped to about 20 mph, and gently return to the road.
38 / 40
A. The lighter your vehicle, the less trouble you will have with the wind
B. Winds are especially a problem when coming out of tunnels
C. You should drive alongside other vehicles to help break up the wind
Strong winds make it difficult to stay in your lane. The problem is usually worse for lighter vehicles. This problem can be especially bad coming out of tunnels.
39 / 40
A. Through tunnels; over bridges
B. During bad weather; in mountains
C. At night; in heavy traffic
During bad weather or in mountains, it may not be safe to operate at legal maximum weights. Take this into account before driving.
40 / 40
A. Only occurs when there is a lot of water
B. Only occurs at speeds above 50 mph
C. Is more likely if tire pressure is low
D. Cannot occur when driving through a puddle
Hydroplaning is more likely if tire pressure is low, or the tread is worn. The grooves in a tire carry away the water; if they aren't deep, they don't work well.
1 / 40
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