штат Пенсильвания
1 / 40
A. below; higher
B. above; lower
C. near; lower
The braking effect of the engine is greatest when it is near the governed rpms and the transmission is in the lower gears.
2 / 40
A. You should always brake during curves
B. You should choose a speed that lets you stop within the distance that you can see ahead
C. Empty trucks always stop in a shorter distance than fully loaded ones
D. As the speed of a vehicle doubles, its stopping distance also doubles
You should always be able to stop within the distance you can see ahead.
3 / 40
A. With the vehicle stopped, pump the pedal three times; apply firm pressure for 5 seconds, then hold and see if the pedal moves
B. Move the vehicle slowly and see if it stops when the brake is applied
C. Measure the free play in the pedal with a ruler
If the vehicle has hydraulic brakes, pump the brake pedal three times. Then apply firm pressure to the pedal and hold for five seconds. The pedal should not move. If it does, there may be a leak or other problem.
4 / 40
A. It doesn't have to be reviewed.
B. You should review it during your pre-trip inspection.
C. You should review it once a week.
Before performing the pre-trip inspection on your vehicle, you must review the inspection report made by the previous driver. Only if defects reported earlier have been certified as repaired or not needed to be repaired, should you sign the previous driver's report.
5 / 40
A. If you're stopping to help, park away from the accident.
B. Both of the above are correct
C. Try to get your vehicle to the side of the road.
Protect the accident area: if your vehicle is involved in the accident, try to get it to the side of the road, if you're stopping to help, park away from the accident, put on your flashers, and set out reflective triangles to warn other traffic.
6 / 40
A. Multi-speed rear axles
B. Both of the above
C. Auxiliary transmissions
Multi-speed rear axles and auxiliary transmissions are used on many vehicles to provide extra gears. You usually control them by a selector knob or switch on the gearshift lever of the main transmission.
7 / 40
A. One missing leaf in a leaf spring can be dangerous
B. Brake pads should not have brake fluid on them
C. Brake shoes should not be worn dangerously thin
D. All answers are correct and true
Linings, or the friction material on brake pads, must not be loose or soaked with oil or grease and must not be dangerously thin. Mechanical parts must be in place, not broken or missing. Leaf springs should not have missing, shifted, cracked, or broken leaf.
8 / 40
A. Valve clearance
B. Condition of belts and hoses
C. Engine oil level
Oil Level: Indicate where dipstick is located and see that oil level is within safe operating range. Engine Compartment Belts Check belts for snugness up to 3/4-inch play at center of belt with no cracks or frays. Hoses: Inspect hoses for condition and leaks. Valve clearance is the incorrect answer.
9 / 40
A. 1/3
B. 1/2
C. 2/3
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.
10 / 40
A. Check if your vehicle was manufactured after March 1, 1998. (Such vehicles are required to have the panel light.)
B. All of the above can work.
C. Check for a yellow ABS malfunction lamp on the instrument panel.
D. Look for wheel speed sensor wires that are coming from the rear of your brakes.
Most vehicles now have an ABS light on the instrument panel that will light up briefly when the vehicle is started to alert you that the vehicle has ABS, you can check to see if the vehicle was built on or after March 1, 1998, or you can check for wires from your brakes.
11 / 40
A. Spilled fuel cleaned up quickly and properly
B. Driver smoking in a rest area
C. Flammable cargo with proper ventilation
D. Short circuits and loose connections
The following are some causes of vehicle fires: Spilled fuel not properly cleaned up; improper use of flares; under-inflated tires and duals that touch; short circuits due to damaged insulation or loose connections; driver smoking in or around the vehicle; improper fueling and loose fuel connections; flammable cargo, improperly sealed or loaded cargo, with poor ventilation.
12 / 40
A. When the tires skim over the road surface
B. Driving in the snow
C. When you hit a pothole
In some weather, water or slush collects on the road. When this happens, your vehicle can hydroplane. It's like water skiing--the tires lose their contact with the road and have little or no traction. You may not be able to steer or brake.
13 / 40
A. If the wheels are skidding, you cannot control the vehicle
B. It wears brake linings
C. Disconnecting steering axle brakes will help keep your vehicle in a straight-line during emergency braking
Emergency braking does not mean pushing down on the brake pedal as hard as you can. That will only keep the wheels locked up and cause a skid. If the wheels are skidding, you cannot control the vehicle.
14 / 40
A. No answers are correct
B. Danger of load surge
C. High center of gravity and danger of load surge
D. High center of gravity
Hauling liquids in tanks requires special skills because of the high center of gravity and liquid movement.
15 / 40
A. stop and make sure if you aren't certain that a clearance is high enough.
B. assume all clearances are high enough.
C. not worry about the height clearance as long as you stay on state or federal highways.
Hitting overhead objects is dangerous. Make sure you always have overhead clearance.
16 / 40
A. Trucks with a high center of gravity can roll over at the posted speed limit for a curve.
B. Trucks with a high center of gravity can stop faster.
C. Trucks with a high center of gravity can get stuck on railroad tracks.
High center of gravity means that much of the load's weight is carried high up off the road. This makes the vehicle top-heavy and easy to roll over.
17 / 40
A. Both of the above are correct.
B. Brake pads should not have oil, grease, or brake fluid on them.
C. Brake shoes must not be worn dangerously thin, missing, or broken.
Brake linings must not be loose or soaked with oil or grease, and must not be dangerously thin, broken, or missing.
18 / 40
A. used to get out of a burning truck.
B. used to stop runaway vehicles.
C. for combination vehicles only.
Escape ramps are made to stop runaway vehicles safely without injuring drivers and passengers.
19 / 40
A. No answers are correct
B. Both above
C. Total weight of a single vehicle
D. Total weight of a single vehicle plus its load
The Gross Vehicle Weight Rating (GVWR) is the value specified by the manufacturer as the loaded weight of a single vehicle.
20 / 40
A. Over acceleration
B. All answers are correct
C. Turning too sharply
D. Not enough weight on the front axle
Turning too sharply, not enough weight on the front axle, and over acceleration are all example of how to cause vehicle skids.
21 / 40
A. 500 feet.
B. 300 feet.
C. 400 feet.
Dim your lights within 500 feet of an oncoming vehicle and when following another vehicle within 500 feet.
22 / 40
A. outrun you.
B. stop faster than you.
C. make turns faster than you.
Remember, if the vehicle ahead of you is smaller than yours, it can probably stop faster than you can. You may crash if you are following too closely.
23 / 40
A. You need to be in the same gear at the bottom of the hill.
B. You will not be able to shift into a lower gear once you are going down a hill.
C. The clutch is made to be used on even surfaces.
Do not try to downshift after your speed has already built up. You will not be able to shift into a lower gear. You may not even be able to get back into any gear and all engine braking effect will be lost.
24 / 40
A. You should avoid backing whenever you can
B. When you use a helper, they should use a clear spoken signal
C. It is safer to back toward the right side of the vehicle than toward the driver's side
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.
25 / 40
A. To the right side of the road
B. Back and forth, near and far
C. To the left side of the road
D. Straight ahead
Good drivers shift their attention back and forth, near and far.
26 / 40
A. off-tracking.
B. hydroplaning.
C. fishtailing.
When a vehicle goes around a corner, the rear wheels follow a different path than the front wheels. This is called off-tracking. Longer vehicles will off-track more, the rear wheels of the powered unit will off-track some, and the rear wheels of the trailer will off-track even more.
27 / 40
A. You should inspect your tires more often because they are more likely to fail
B. If a tire it is too hot to touch you should drive on it to cool it off
C. Recapped tires are less likely to fail in hot weather than new tires
Inspect the tires more often than usual, or every two hours or every 100 miles when driving in very hot weather.
28 / 40
A. Dry chemical
B. Water
C. Carbon dioxide
An ABC fire extinguisher is a multi-purpose extinguisher and usually uses dry chemicals.
29 / 40
A. Both above
B. No answers are correct
C. The weight transmitted to the ground by one axle or one set of axles
D. The weight transmitted to the tires from the axle
Axle Weight is the weight transmitted to the ground by one axle or one set of axles
30 / 40
A. A driver can lose his/her license for driving while under the influence of alcohol
B. Statistics show that drivers who have been drinking have a much greater chance of being in a crash
C. All answers are correct
D. Alcohol first affects judgment and self-control, which are essential for safe driving
Alcohol impairs muscle coordination, reaction time, depth perception, and night vision. It also affects the parts of the brain that control judgment and inhibition. These effects mean increased chances of a crash and chances of losing your driver's license. Accident statistics show that the chance of a crash is much greater for drivers who have been drinking than for drivers who have not.
31 / 40
A. Driver smoking and following too close
B. Tight turns and gravel roads
C. Underinflated tires and duals that touch
The following are some causes of vehicle fires: spilled fuel, improper use of flares, under-inflated tires, duals that touch, short circuits, loose connections, improper fueling, loose fuel connections, flammable cargo that is improperly sealed or loaded cargo or has poor ventilation.
32 / 40
A. Antifreeze is not needed when the weather is warm
B. If your engine overheats within 20 miles of the end of your trip, you should complete the trip and then check the problem
C. You should never shut off an overheated engine until it cools
D. You should never remove the radiator cap on a pressurized system
Never remove the radiator cap or any part of the pressurized system until the system has cooled. Steam and boiling water can spray under pressure and cause severe burns.
33 / 40
A. Starting up a hill and finishing a curve
B. Starting up a hill and entering a curve
C. Starting down a hill and entering a curve
D. Starting down a hill and finishing a curve
Special conditions where you should downshift are: before starting down a hill slow down and shift down to a speed that you can control without using the brakes hard, and before entering a curve slow down to a safe speed and downshift to the right gear before entering the curve.
34 / 40
A. apply extra braking power to the non-drive axles.
B. help slow the vehicle while driving and reduce brake wear.
C. help prevent skids and reduce brake wear.
Retarders help slow a vehicle, reducing the need for using your brakes. They reduce brake wear and give you another way to slow down.
35 / 40
A. Every 8 to 10 seconds
B. When turning or changing lanes
C. Every 1/4 mile
You should check your mirrors every 8 to 10 seconds to know what is going on around your vehicle at all times.
36 / 40
A. As far ahead as you can see
B. 1 block
C. 2 blocks
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.
37 / 40
A. Steer around it when it is safe to do so
B. Brake hard to avoid hitting it
C. Stop and direct traffic around it.
Steering around the object when it is safe to do is the safest action.
38 / 40
A. They must be no more than 8 inches above the ground when the vehicle is fully loaded.
B. It depends on the state.
C. They must be no more than 15 inches above the ground when the vehicle is completely unloaded.
Currently, there are no federal regulations governing the height of splash guards. Each state is free to issue its own regulations, and those regulations vary from one state to another.
39 / 40
A. go straight ahead even if the steering wheel is turned.
B. slide sideways and spin out.
C. go to the right.
In a front-wheel skid, the front end tends to go in a straight line regardless of how much you turn the steering wheel.
40 / 40
A. body weight.
B. height.
C. age.
BAC is determined by the amount of alcohol you drink, how fast you drink, and your weight.
1 / 40
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