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1 / 40
A. Driving in the snow
B. When you hit a pothole
C. When the tires skim over the road surface
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.
2 / 40
A. 2/3
B. 1/2
C. 1/3
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.
3 / 40
A. 400 feet.
B. 300 feet.
C. 500 feet.
Dim your lights within 500 feet of an oncoming vehicle and when following another vehicle within 500 feet.
4 / 40
A. Try to get your vehicle to the side of the road.
B. Both of the above are correct
C. If you're stopping to help, park away from the accident.
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.
5 / 40
A. Brake shoes should not be worn dangerously thin
B. One missing leaf in a leaf spring can be dangerous
C. Brake pads should not have brake fluid on them
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.
6 / 40
A. for combination vehicles only.
B. used to get out of a burning truck.
C. used to stop runaway vehicles.
Escape ramps are made to stop runaway vehicles safely without injuring drivers and passengers.
7 / 40
A. Turning too sharply
B. Over acceleration
C. All answers are correct
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.
8 / 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.
9 / 40
A. When you use a helper, they should use a clear spoken signal
B. You should avoid backing whenever you can
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.
10 / 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.
11 / 40
A. You should inspect your tires more often because they are more likely to fail
B. Recapped tires are less likely to fail in hot weather than new tires
C. If a tire it is too hot to touch you should drive on it to cool it off
Inspect the tires more often than usual, or every two hours or every 100 miles when driving in very hot weather.
12 / 40
A. High center of gravity
B. Danger of load surge
C. No answers are correct
D. High center of gravity and danger of load surge
Hauling liquids in tanks requires special skills because of the high center of gravity and liquid movement.
13 / 40
A. Spilled fuel cleaned up quickly and properly
B. Flammable cargo with proper ventilation
C. Short circuits and loose connections
D. Driver smoking in a rest area
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.
14 / 40
A. height.
B. age.
C. body weight.
BAC is determined by the amount of alcohol you drink, how fast you drink, and your weight.
15 / 40
A. Check for a yellow ABS malfunction lamp on the instrument panel.
B. Look for wheel speed sensor wires that are coming from the rear of your brakes.
C. Check if your vehicle was manufactured after March 1, 1998. (Such vehicles are required to have the panel light.)
D. All of the above can work.
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.
16 / 40
A. help prevent skids and reduce brake wear.
B. help slow the vehicle while driving and reduce brake wear.
C. apply extra braking power to the non-drive axles.
Retarders help slow a vehicle, reducing the need for using your brakes. They reduce brake wear and give you another way to slow down.
17 / 40
A. Disconnecting steering axle brakes will help keep your vehicle in a straight-line during emergency braking
B. It wears brake linings
C. If the wheels are skidding, you cannot control the vehicle
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.
18 / 40
A. As the speed of a vehicle doubles, its stopping distance also doubles
B. You should always brake during curves
C. You should choose a speed that lets you stop within the distance that you can see ahead
D. Empty trucks always stop in a shorter distance than fully loaded ones
You should always be able to stop within the distance you can see ahead.
19 / 40
A. make turns faster than you.
B. stop faster than you.
C. outrun 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.
20 / 40
A. Dry chemical
B. Water
C. Carbon dioxide
An ABC fire extinguisher is a multi-purpose extinguisher and usually uses dry chemicals.
21 / 40
A. Starting down a hill and entering a curve
B. Starting up a hill and entering a curve
C. Starting up a hill and finishing 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.
22 / 40
A. Trucks with a high center of gravity can stop faster.
B. Trucks with a high center of gravity can get stuck on railroad tracks.
C. Trucks with a high center of gravity can roll over at the posted speed limit for a curve.
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.
23 / 40
A. You should never remove the radiator cap on a pressurized system
B. Antifreeze is not needed when the weather is warm
C. If your engine overheats within 20 miles of the end of your trip, you should complete the trip and then check the problem
D. You should never shut off an overheated engine until it cools
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.
24 / 40
A. Brake hard to avoid hitting it
B. Steer around it when it is safe to do so
C. Stop and direct traffic around it.
Steering around the object when it is safe to do is the safest action.
25 / 40
A. You need to be in the same gear at the bottom of the hill.
B. The clutch is made to be used on even surfaces.
C. You will not be able to shift into a lower gear once you are going down a hill.
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.
26 / 40
A. Condition of belts and hoses
B. Valve clearance
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.
27 / 40
A. slide sideways and spin out.
B. go to the right.
C. go straight ahead even if the steering wheel is turned.
In a front-wheel skid, the front end tends to go in a straight line regardless of how much you turn the steering wheel.
28 / 40
A. The weight transmitted to the ground by one axle or one set of axles
B. The weight transmitted to the tires from the axle
C. No answers are correct
D. Both above
Axle Weight is the weight transmitted to the ground by one axle or one set of axles
29 / 40
A. Every 1/4 mile
B. Every 8 to 10 seconds
C. When turning or changing lanes
You should check your mirrors every 8 to 10 seconds to know what is going on around your vehicle at all times.
30 / 40
A. Move the vehicle slowly and see if it stops when the brake is applied
B. Measure the free play in the pedal with a ruler
C. With the vehicle stopped, pump the pedal three times; apply firm pressure for 5 seconds, then hold and see if the pedal moves
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.
31 / 40
A. off-tracking.
B. fishtailing.
C. hydroplaning.
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.
32 / 40
A. Total weight of a single vehicle plus its load
B. Total weight of a single vehicle
C. Both above
D. No answers are correct
The Gross Vehicle Weight Rating (GVWR) is the value specified by the manufacturer as the loaded weight of a single vehicle.
33 / 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.
34 / 40
A. To the right side of the road
B. To the left side of the road
C. Back and forth, near and far
D. Straight ahead
Good drivers shift their attention back and forth, near and far.
35 / 40
A. Underinflated tires and duals that touch
B. Tight turns and gravel roads
C. Driver smoking and following too close
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.
36 / 40
A. All answers are correct
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
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.
37 / 40
A. near; lower
B. below; higher
C. above; lower
The braking effect of the engine is greatest when it is near the governed rpms and the transmission is in the lower gears.
38 / 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.
39 / 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.
40 / 40
A. As far ahead as you can see
B. 2 blocks
C. 1 block
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.
1 / 40
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