NC Class B General Knowledge and Air Brakes permit test

The new BAC (Blood Alcohol Concentration) for commercial drivers to be Considered intoxicated when driving a commercial vehicle is: a. .01 b. .04 c. .05 d. .10

b. .04

What is hydroplaining? a. Only occurs when there is a lot of water. b. Is more likely if tire pressure is low. c. Cannot occur when driving through a puddle. d. Only occurs at speeds above 50 mph

b. Is more likely if tire pressure is low.

Inspect your cargo after you have driven a. 25 miles b. 50 miles c. 100 miles d. None of the above

25 miles

Which of these statements about overhead clearance is true? a. A vehicles clearance can change with the load carried. b. You should assume the posted clearance signs are correct. c. Extra speed will cause air to push your vehicle down for extra clearance. d. If the road surface causes your vehicle to tilt toward objects at the edge of the road, you should drive close to the shoulder

A vehicles clearance can change with the load carried

Whether or not you load and secure your load yourself, you are responsible for: a. Knowing your cargo is securely tied down and covered b. Inspecting your cargo c. Recognizing overloads and poorly balanced weight d. All of the above

All of the above

Front end header boards: a. Block the forward movement of your cargo b. Protect you from your cargo in case of collision c. Both of the above d. None of the above

Both of the above

Brake "fade": a. Can be corrected by letting up on the brakes for 1-2 seconds and then re-apply them. b. Only occurs with drum brakes. C. Can be caused by the brakes becoming too hot. d. All of the above

C. Can be caused by the brakes becoming too hot.

You are driving on a straight, level highway at 50 mph. There are no vehicles in front of you. Suddenly a tire blows out on your vehicle. What should you do first? a. Begin light braking. b. Begin controlled or stab braking. C. Stay off the brake until the vehicle slows down on its own. d. Quickly steer onto the shoulder

C. Stay off the brake until the vehicle slows down on its own.

Which of these is a good rule to follow when steering to avoid a crash? a. Avoid counter steering. b. Steer with one hand so that you can turn the wheel more quickly. c. Apply the brakes while turning. d. Don't turn any more than is needed to clear what is in your way

Don't turn any more than is needed to clear what is in your way

During what time in your pre-trip inspection do you check the back emergency door? (to insure it is closed.) a. During step four (lights first half) the inside walk through. b. Only during the operation inspection of the pre-trip. c. Only during the inside walk through. d. None of the above.

During step four (lights first half) the inside walk through.

Some traffic emergencies may require you to leave the road. Which of these is a good thing to remember? a. Brake gently to avoid skidding. b. Use hard braking if you are moving at a speed greater that 20-mph. c. If you must leave the road, try to get all wheels off the pavement, or at least one side of vehicles tires off the road. d. Most shoulders will not support a large vehicle

If you must leave the road, try to get all wheels off the pavement, or at least one side of vehicles tires off the road.

Which of these statements about downshifting for a long downhill grade is true? a. The proper time to downshift is just after the vehicle starts down the hill. b. It allows engine compression and friction to help the brakes slow the vehicle. c. It should not be done with automatic transmissions. d. It is necessary if the vehicle has retarders

It allows engine compression and friction to help the brakes slow the vehicle.

Gross Vehicle Weight Rating (GVWR) means the following? a. Maximum gvw specified by manufacture for a single vehicle plus load b. Maximum gvw specified by the manufacture c. Maximum gvw specified by manufacture for a single vehicle d. None of the above

Maximum gvw specified by manufacture for a single vehicle plus load

You must park on the side of a level, straight, four lane, divided highway. Where should you place the three reflective triangles? a. One about 50 feet from the rear of the vehicle, one about 100 feet to the rear, and one about 100 feet from the front of the vehicle. b. One within 10 feet of the front of the vehicle, one about 200 feet from the front, and one about 100 feet to the rear. c. One within 10 feet of the rear of the vehicle, one about 100 feet to the rear, and one about 100 feet from the front of the vehicle. d. One within 10 feet of the rear of the vehicle, one about 100 feet to the rear, and one about 200 feet to the rear

One within 10 feet of the rear of the vehicle, one about 100 feet to the rear, and one about 200 feet to the rear

During a pre-trip inspection you discover an exhaust leak or power steering leak, you should: a. Report the problem and make arrangements for another bus to use. b. Go home because shouldn't drive the vehicle this way. c. Note the problem and continue your route. d. None of the above

Report the problem and make arrangements for another bus to use

The height of the vehicle center of gravity is very important for safe handling. A high center of gravity means you are more likely to do the following: a. Increase speed going down hill b. Increase stopping distance c. Roll over d. None of the above

Roll over

You are driving a heavy vehicle. You must exit a highway using an off-ramp that curves downhill. You should: a. Come to a full stop at the top of the ramp. b. Wait until you are in the curve before downshifting. c. Slow down to a safe speed before the turn. d. Slow to the posted speed limit for the off-ramp

Slow down to a safe speed before the turn

The load means the following? a. Specified pressure an air tire can carry b. The maximum safe weight a tire can carry at a specified pressure c. Both of the above d. None of the above

The maximum safe weight a tire can carry at a specified pressure

Axle weight means the following? 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. None of the above d. Both of the above

The weight transmitted to the ground by one axle or one set of axles

Medical certificates must be renewed every: a. One year b. Two years c. Four years d. None of the above

Two years

Which of these statements about driving in areas with strong winds is true? a. Winds are especially a problem when coming out of tunnels. b. You should drive alongside other vehicles to help break up the wind. c. You can lessen the effect of the wind by letting some air out of your tires. d. The lighter your vehicle, the less trouble you will have with the wind

Winds are especially a problem when coming out of tunnels

Which of these statements about engine overheating is true? a. You should never remove the radiator cap on a pressurized system. 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. Antifreeze is not needed when the weather is warm. d. You should never shut off an overheated engine until it cools

You should never remove the radiator cap on a pressurized system.

To prevent shifting, there should be at least one tie down for every ___ feet of cargo a. 10 b. 15 c. 18 d. 20

a. 10

Turn signals should be used: a. At least 100ft. Before turning or changing lanes b. At least 200ft. Before turning or changing lanes c. At least 300ft. Before turning or changing lanes d. At least 500ft. Before turning or changing lanes

a. At least 100ft. Before turning or changing lanes

Which of these statements about crossing or entering traffic with a heavy vehicle is true? a. Heavy vehicles need larger gaps in traffic than cars. b. The heavier your load, the smaller the gap needed to cross traffic. c. The best way to cross traffic is to pull the vehicle partway across the road and block one lane while waiting for the other to clear. d. Because heavy vehicles are easy to see, you can count on other drivers to move out of your way or slow down for you

a. Heavy vehicles need larger gaps in traffic than cars.

Which of these is the most important things to remember about emergency braking? a. If the wheels are skidding you cannot control vehicle. b. Disconnecting steering axle brakes will help keep your vehicle in a straight line during emergency braking. c. Never do it without down shifting first. d. It wears brake linings

a. If the wheels are skidding you cannot control vehicle.

Controlled braking: a. Is used to keep a vehicle from skidding. b. Involves locking the wheels for short periods of time. c. Can be used while you are turning sharply. d. All of the above

a. Is used to keep a vehicle from skidding.

Tie downs must be of the proper type and strength. The combined strength of cargo tie downs must be strong enough to lift. a. One and one half times the weight of the cargo tied down b. Three times the weight of the cargo tied down. c. Twice the weight of the cargo tied down d. The weight of the cargo tied down

a. One and one half times the weight of the cargo tied down

Cargo inspections: a. Should be performed after every break you take while driving. b. Are only needed if hazardous materials are being hauled c. Not the responsibility of the driver. d. Should be performed every 6 hours or 300-miles

a. Should be performed after every break you take while driving.

Which of these statements about cargo loading is true? a. State laws dictate legal weight limits b. Slight overloading of a vehicle can make its brakes work better. c. If the shipper loads cargo, the driver is not responsible for overloading. d. The legal maximum weight allowed by a state can be considered safe for all driving conditions.

a. State laws dictate legal weight limits

You are driving on a two lane road. An oncoming driver drifts into your lane and is headed straight for you. Which of these is generally the best action? a. Steer to the right b. Steer onto the left shoulder c. Hard braking d. Steer into the oncoming lane

a. Steer to the right

You are driving in the right lane of a four lane, undivided road, you come over a hill and find a car stopped ahead in your lane. You do not have roomed to stop, and the hill blocks your view to the rear. Which of these is most likely the best action to take? a. Steer to the right. b. Use hard braking and brace for collision. c. Steer into the left lane. d. Steer into the oncoming lanes

a. Steer to the right.

The "reaction distance" is the distance traveled from the time: a. The brain tells the foot to push the brake pedal to the time the foot actually pushes the pedal. b. The eyes see a hazard to the time the brain knows that it is a hazard. c. The eyes see a hazard to the time the foot pushes the brake pedal. d. The brake pedal is pressed to the time the brakes begin to slow the vehicle.

a. The brain tells the foot to push the brake pedal to the time the foot actually pushes the pedal.

As the blood alcohol concentration (BAC) goes up, what happens? a. The person becomes more dangerous if allowed to drive. b. The effects of alcohol decreases. c. The drinker more clearly sees how alcohol is affecting him/her. d. The drinker can sober up in less time

a. The person becomes more dangerous if allowed to drive.

Which of these statements about using mirrors is true? a. There are blind spots that your mirrors cannot show you. b. You should check your mirrors twice for a lane change. c. You should look at a mirror for several seconds at a time. d. Convex mirrors make things look closer than they really are

a. There are blind spots that your mirrors cannot show you.

You are checking your tires for a pre trip inspection. Which of these statements is true? a. Tires of mismatched sizes should not be used on the same vehicle. b. Radial and bias-ply tires can be used together on the same vehicle. c. Dual tires should be touching each other. d. 2/32 inch tread depth is safe for the front tires

a. Tires of mismatched sizes should not be used on the same vehicle.

Gross Vehicle Weight (GVW) means the following: a. Total weight of a single vehicle plus its load b. Total weight of a single vehicle c. Both of the above d. None of the above

a. Total weight of a single vehicle plus its load

You are driving a new truck with a manual transmission. What gear will you probably have to use to take a long downhill grade? a. a lower gear that you would use to climb a hill b. the same gear you would use to climb the hill c. a higher gear that you would use to climb the hill d. none: newer trucks can coast down hills

a. a lower gear that you would use to climb a hill

While driving, you see a small (1 foot square) cardboard box ahead in your lane. You should: a. steer around it when it is safe to do so b. hit it with your vehicle to knock it off the road c. brake hard to avoid hitting it d. stop and direct traffic around it

a. steer around it when it is safe to do so

How far can the board of education make a student walk to their assigned pick up location? a. 1 mile b. 1/2 mile c. 100 yards d. 500 yards

b. 1/2 mile

Cargo that can shift should have at least _______ tie downs a. 1 b. 2 c. 3 d. 4

b. 2

The proper way to hold a steering wheel is at clock positions a. 6 and 12 b. 3 and 9 C. 4:30 and 7:30 d. 1:30 and 10:30

b. 3 and 9

Some liquid tanks are divided into several smaller tanks by: a. Bore tanks b. Bulkheads c. Baffles d. Containers

b. Bulkheads

You should avoid driving through deep puddles or flowing water. But if you must, which of these steps can help keep your brakes working? a. Applying hard pressure on both the brake pedal and accelerator after coming out of the water. b. Gently pressing the brake pedal while driving through the water. c. Turning on your brake heaters. d. Driving through quickly

b. Gently pressing the brake pedal while driving through the water.

If a straight vehicle (no trailer or articulation) goes into a front wheel skid it will: a. Slide sideways and spin out. b. Go straight ahead even if the steering wheel is turned c. Go straight ahead but will turn if you turn the steering wheel. d. Likely do any of the above.

b. Go straight ahead even if the steering wheel is turned

Which of these statements about marking a stopped vehicle is true? a. The vehicle's taillights should be kept on to warn other drivers. b. If a hill or curve keeps drivers behind you from seeing the vehicle within 500 feet, the rear reflective triangle should be moved back down the road to give adequate warning. c. You do not need to put out reflective triangles unless the vehicle will be stopped for 30 minutes or more. d. All of the above are true.

b. If a hill or curve keeps drivers behind you from seeing the vehicle within 500 feet, the rear reflective triangle should be moved back down the road to give adequate warning.

According to the driver's manual, why should you limit the use of your horn? a. It wears down the battery. b. It can startle other drivers. c. The horn is not a good way to let others know you're there. d. You should keep both hands tightly gripping the steering wheel

b. It can startle other drivers.

Your vehicle has hydraulic brakes, While traveling on a level road, you press the brake pedal and find that it goes to the floor. Which of these statements is true? 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. d. All of the above are true.

b. Pumping the brake pedal may bring the pressure up so you can stop the vehicle.

To correct a rear wheel (drive wheel) braking skid, you should: a. Apply more braking pressure to the brake pedal b. Release brakes and accelerate. c. Apply more pressure to the brake pedal and steer counter steer. d. Release the brakes and steer / counter steer

b. Release brakes and accelerate.

How do you test hydraulic brakes for leaks? a. Measure the free play in the pedal with a ruler. b. With the vehicle stopped, pump the pedal three times, apply firm pressure for 5 seconds, then hold and see if the pedal moves. c. Step on the brake pedal and the accelerator at the same time and see if the vehicle moves. d. Move the vehicle slowly and see if it stops when the brake is applied.

b. With the vehicle stopped, pump the pedal three times, apply firm pressure for 5 seconds, then hold and see if the pedal moves

Which of these statements about tires and hot weather driving is true? a. If a tire it is too hot to touch, you should drive on it to cool it off. b. You should inspect your tires more often because they are more likely to fail. c. Recapped tires are less likely to fail in hot weather than new tires. d. All of the above

b. You should inspect your tires more often because they are more likely to fail.

If you are stopped at a roadside rest and found to have a BAC of .02 you will a.in trouble with the dispatcher b. be placed out of service for 24 hours c. be placed out of service for 48 hours d. be placed out of service for 72 hours

b. be placed out of service for 24 hours

Stab Braking: a. should never be used b. involves locking the wheels c. involves steady pressure on the brake pedal d. should only be used on slick roads

b. involves locking the wheels

High beams should be: a. dimmed whenever you are within 100 feet of another vehicle b. used whenever it is safe and legal to do so c. turned on when an oncoming driver does not dim his or her lights d. all of the above

b. used whenever it is safe and legal to do so

The distance that you should look ahead of your vehicle while driving amounts to about highway speed. a. 500 feet b. 800 feet c. 1/4 mile d. One block

c. 1/4 mile

How far should a driver look ahead of the vehicle while driving? a. 6-9 seconds b. 9-12 seconds c. 12-15 seconds d. 18-21 seconds

c. 12-15 seconds

You are driving a 40 foot vehicle at 35 mph. Driving conditions are ideal (dry pavement, good visibility). What is the least amount of space that you should keep in front of your vehicle to be safe? a. 2 seconds b. 3 seconds c. 4 seconds d. 5 seconds

c. 4 seconds

If you are convicted for driving under the influence while driving a commercial vehicle, and this is your first offense, you will most likely get: a. A fine of $500.00 b. Probation for a period of one year c. At least a one-year suspension of your CDL d. A warning

c. At least a one-year suspension of your CDL

When looking ahead of your vehicle while driving you should look: a. To the left side of the road. b. To the right side of the road. c. Back and forth, near and far. d. Straight ahead

c. Back and forth, near and far.

Tank vehicles are used to carry any liquid and are dangerous to drive because; a. Danger of load surge b. High center of gravity c. Both of the above d. None of the above

c. Both of the above

Your vehicle is in a traffic emergency and may collide with another vehicle if you do not take action. Which of these is a good rule to remember at such a time? a. Stopping is always the safest action in a traffic emergency. b. Open the door and jump out if you have time. c. Heavy vehicles can almost always turn more quickly than they can stop. d. Leaving the road is always more risky that hitting another vehicle.

c. Heavy vehicles can almost always turn more quickly than they can stop.

Which of these is the most important thing to remember about emergency braking? a. Never do it without downshifting first. b. Disconnecting the steering axle brakes will keep the vehicle in a straight line. c. If the wheels are skidding, you cannot control the vehicle. d. Will always work and allow you to avoid an emergency

c. If the wheels are skidding, you cannot control the vehicle.

You are traveling down a long, steep hill. Your brakes get so hot that they fail. What should you do? a. Pump the brake pedal. b. Down shift. c. Look for an escape ramp or escape route. d. All of the above

c. Look for an escape ramp or escape route.

Is it legal to drive with one fourth of a vehicles leaf springs broken or missing? a. It doesn't make any difference as long as you drive slow. b. Yes c. No d. None of the above

c. No

You must park on the side of a level, straight, two lane road. Where should you place the three reflective triangles? a. One within 10 feet of the rear of the vehicle, one about 100 feet to the rear, and one about 200 feet to the rear. b. One within 10 feet of the front of the vehicle, one about 200 feet from the front, and one about 100 feet to the rear. c. One within 10 feet of the rear of the vehicle, one about 100 feet to the rear, and one about 100 feet from the front of the vehicle. d. One about 50 feet from the rear of the vehicle, one about 100 feet to the rear, and one about 100 feet from the front of the vehicle

c. One within 10 feet of the rear of the vehicle, one about 100 feet to the rear, and one about 100 feet from the front of the vehicle.

You have left the road in an emergency condition, it is impossible for you to come to a stop prior to returning to the road, which of the following is the best action to take? a. Stop and turn your vehicle around before entering the road. b. Make sure the road is clear, and continue to return to the road. c. Reduce your speed to 20 mph or less before returning to the road. d. All the above are true.

c. Reduce your speed to 20 mph or less before returning to the road.

You are checking your wheels and rims for a pre trip inspection. Which of these statements is true? a. A vehicle can be safely driven with one missing lug nut on a wheel. b. Mismatched lock rings can be used on the same vehicle. c. Rust around wheel nuts may mean that they are loose. d. Cracked wheels or rims can be used if they have been welded

c. Rust around wheel nuts may mean that they are loose.

How do you correct a rear wheel acceleration skid? a. Apply the brake. b. Apply more power to the wheels. c. Stop accelerating. d. Downshift

c. Stop accelerating.

You are starting your vehicle in motion from a stop. As you apply power to the drive wheels, they start to spin. You should: a. Take your foot off the accelerator and apply the brakes. b. Press harder on the accelerator. c. Take your foot off the accelerator. d. Try a lower gear.

c. Take your foot off the accelerator.

Which of these statements about brakes is true. a. Brake drums cool very quickly when the vehicle is moving very fast. b. Brakes have more stopping power when they get very hot. c. The heavier a vehicle or the faster it is moving, the more heat the brakes have to absorb to stop it. d. All of the above are true

c. The heavier a vehicle or the faster it is moving, the more heat the brakes have to absorb to stop it.

The Gross Combination Weight (GCW) means the following? a. The total weight of a powered unit plus trailer(s) b. The total weight of single plus load c. The total weight of a powered unit plus trailer(s) plus the cargo. d. The total weight of single vehicle

c. The total weight of a powered unit plus trailer(s) plus the cargo.

Which of these statements about double clutching and shifting is true? a. If you miss a gear while up-shifting, you must bring the vehicle to a stop. b. Double clutching should only be used with a heavy load c. You can use the tachometer to tell you when to shift. d. Double clutching should not be used when the road is slippery

c. You can use the tachometer to tell you when to shift.

Which of these statements about speed management is true? 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.

c. You should choose a speed that lets you stop within the distance that you can see ahead.

You do not have a hazardous materials endorsement on your commercial drivers license. When can you drive a vehicle hauling hazardous materials? a. Never b. only when the shipment will not cross state lines c. only when the vehicle does not require placards d. only when a person who has the hazardous materials endorsement rides in the vehicle

c. only when the vehicle does not require placards

What is counter steering? a. using the steering axle breaks to prevent over steering b. steering in the opposite directions from what other drivers expect you to do c. turning the wheel in the opposite direction to avoid a traffic emergency d. turning the steering wheel counter clockwise

c. turning the wheel in the opposite direction to avoid a traffic emergency

Where and when should you test the stopping action of your service brakes? a. at a special brake testing center only b. when the vehicle is traveling downhill without a load c. when the vehicle is moving at about 5 MPH d. In a parking lot when the vehicle is not moving

c. when the vehicle is moving at about 5 MPH

When a vehicle is carrying a load at night, which extends four feet or more beyond the rear of the body, there must be at the extreme end of the load. a. A red flag. b. 2 red flags. c. 1 red light. d. 2 red lights

d. 2 red lights

You are driving a 40 foot vehicle at 45 MPH. Driving conditions are ideal (dry pavement, good visibility). What is the least amount of space that you should keep in front of your vehicle to be safe? a. 2 seconds b. 3 seconds c. 4 seconds d. 5 seconds

d. 5 seconds

Blocking your cargo to keep it from sliding must be done: a. Side of cargo b. Back of cargo c. Front of cargo d. All of the above

d. All of the above

Cargo covers: a. Protect people from spilled cargo. b. Protect cargo from weather. c. May be required by law. d. All of the above

d. All of the above

Over-length, over width, and / or overweight loads require: a. Flashing lights b. Driving limited to certain times c. Special transit permits. d. All of the above

d. All of the above

The amount of liquid to load into a tank depends on: a. The weight of the liquid. b. The legal weight limits. C. The amount of liquid will expand in transit. d. All of the above

d. All of the above

The basic two reasons to cover your cargo are 1) to protect the cargo from the weather and 2): a. Protect people from spilled cargo b. Protect vehicle following you from spilled cargo c. Protect the roadway from spilled cargo d. All of the above

d. All of the above

Which of these is a good driving rule for work zones? a. Turn on you flashers / hazard lights b. Use your brake lights to warn drivers behind you. c. Drive slowly d. All of the above

d. All of the above

Which of these is a proper use of vehicle lights and flashers? a. Flashing your brake lights to warn someone behind you of a hazard that will require slowing down. b. Turning on your headlights during the day when visibility is reduced due to rain or snow. c. Flashing your brake lights to warn someone behind you that you're are going to stop on the road. d. All of the above

d. All of the above

Which of these is a sign of tire failure? a. Steering that feels heavy. b. Vibration. c. A loud bang. d. All of the above

d. All of the above

Which of these statements about speed management is true? a. On a wet road, you should reduce your speed by about 1/3. b. On packed snow, you should reduce your speed by about 1/2. c. When the road is slippery, it will take longer to stop and it will be harder to turn without skidding. d. All of the above

d. All of the above

Which of these will help keep an engine cool in hot weather? a. Making sure the engine has the right amount of oil. b. Properly adjusted v-belts. c. Avoiding high speed driving. d. All of the above

d. All of the above

You must inspect your cargo: a. After every break b. Every 3 hours or 150 miles c. Before starting d. All of the above

d. All of the above

Your brakes can get wet when you drive through a heavy rain. What can this cause when the brakes are applied? a. Lack of braking power b. Trailer jackknife C. Wheel lockup d. All of the above

d. All of the above

Which of these statements about escape ramps is true? a. They protect equipment and cargo from severe damage. b. They are designed to prevent injury to drivers and passengers. c. They are used to stop vehicles that lose their brakes on downhill grades. d. All of the above are true

d. All of the above are true

You are checking your brakes and suspension system for a pre trip inspection. Which of these statements is true? a. Brake pads should not have brake fluid on them. b. One missing leaf in a leaf spring can be dangerous. c. Brake shoes should be at least 1/32 inch thick. d. All of the above are true

d. All of the above are true

Prior to driving, what are some of the items you should check the interior of the bus for? a. Schoolbooks and students belongings. b. A student or other passengers c. Trash and clothing. d. All the above

d. All the above

There are three types of vehicle inspections, which one is one of them? a. Post-trip b. Enroute c. Pre-trip d. All the above

d. All the above

When checking the bus seats, what are you looking for? a. To insure they are securely fastened to the bus. b. To see if they have been removed. c. To insure the seat and back portions are not loose. d. All the above

d. All the above

A vehicle is loaded with very little weight on the drive axle. What may result? a. Damage to drive axle tires. b. A need to disconnect the steering axle brakes. c. Better handling. d. Poor traction

d. Poor traction

An en route inspection should include checking for: a. cargo door and/or cargo securement b. tire temp c. brake temp d. all of the above

d. all of the above

Which of these pieces of emergency equipment should always be carried in your vehicle? a. fire extinguishers b. warning devices for parked vehicles c. spare electrical fuses d. all of the above

d. all of the above

Retarders: a. allow you to disconnect steering axle breaks b. cannot be used on interstate highways c. work better at very low rpms d. can cause the vehicle to skid when the road is slippery

d. can cause the vehicle to skid when the road is slippery

When roads are slippery, you should: a.stop and test the traction while going uphills b. drive alongside other drivers c. decrease the distance that you look ahead of your vehicle d. make turns as gently as possible

d. make turns as gently as possible