Delaware CDL DMV Knowledge Test Class A 2

Subject to certain conditions, a CDL is not required to operate military vehicles, authorized emergency vehicles, farm equipment, or recreational vehicles. It is also not required for operating a straight truck that contains only your personal property that you are not selling.

When examining the air and electrical lines as part of your vehicle inspection test, you must listen for leaks. Ensure that the air hoses and electrical lines are not cut, chafed, spliced, or worn. Make sure air and electrical lines are not tangled, pinched, or dragging against tractor parts.

It is safest not to drive in foggy areas. However, if you must drive through fog, you should slow down, use your low beam headlights and fog lights, and turn on your four-way flashers.

The most important reason to inspect your vehicle is to ensure the safety of yourself and other road users.

Air expands as it gets warmer, so the air pressure in your tires could reach dangerously high levels while being used in very hot weather. If this happens, stop and let your tires cool. Do not let air out of the tires, as this could result in the pressure dropping to an unsafe level once the tires cool down.

A driver is allowed to exit their vehicle to check its position during any basic control skills test exercise. This action is called a "look." During the straight line backing exercise, a driver may not exceed one look. During any other exercise, a driver may not exceed two looks.

There are a number of crimes that will disqualify a person from receiving a hazardous materials endorsement for seven years. Among these offenses are arson, robbery, and crimes of dishonesty, fraud, or misrepresentation. More serious crimes, such as murder, result in a lifetime disqualification.

It is important to observe other drivers' actions and identify clues that a person could be driving impaired. Drivers who have had too much to drink, are sleepy, are on drugs, or are ill can present hazards to other drivers. One sign that a driver may be impaired is that they stop in inappropriate places, such as at green traffic lights.

To remain aware of hazards behind your vehicle when backing, you should frequently check your mirrors on both sides of the vehicle. Have a helper watch your blind spots whenever possible.

During the vehicle inspection skills test, you will need to explain to the examiner what you are inspecting and why.

Potential warning signs of fatigue include difficulty focusing, frequent blinking, or heavy eyelids; yawning repeatedly or rubbing your eyes; daydreaming; wandering or disconnected thoughts; trouble remembering the last few miles you've driven; missing exits or traffic signs; having trouble keeping your head up; drifting from your lane; following too closely; hitting a shoulder rumble strip; or feeling restless and irritable.

When checking the power steering fluid during the vehicle inspection test, you must be able to indicate where the power steering fluid dipstick is located and show that there is an adequate amount of power steering fluid in the engine compartment. The fluid level must be above the refill mark.

Cargo should be inspected before beginning a trip, within the first 50 miles of the trip, and every three hours or 150 miles traveled. The driver of a truck transporting cargo is responsible for the cargo being safely secured throughout the trip.

If you are being tailgated, you should increase the distance between your vehicle and the vehicle ahead of you. This reduces the need for you to make sudden changes in speed or direction while making it easier for the tailgater to pass your vehicle.

Always downshift before entering a curve. Decreasing your speed before entering the curve will allow you to maintain better control over the vehicle throughout the curve.

If your vehicle has air brakes, the air compressor drive belt should be checked before each drive. Check the tightness of the belt and verify that it is in good condition.

Cargo should be restrained by at least one tie-down for every 10 feet of cargo. However, all cargo should have at least two tie-downs, no matter the size of the cargo.

Operators driving too fast is a major cause of fatal crashes. You must continually adjust your speed to a rate that is safe for road and traffic conditions.

In a dual air brake system, either the front or rear brakes will not be fully operable if one of the air systems gets too low on pressure. If the air pressure in either tank gets too low while you are driving, you should exit the road and park as soon as possible.

When doing a pre-trip inspection on a vehicle with power steering, be sure to check the hoses, pumps, and fluid level. In particular, you should check the hoses for leaks.

During the on-road driving test, you must listen to and follow the directions given by the examiner. They will never ask you to drive in an unsafe manner.

Commercial drivers are required by federal and state laws to inspect their vehicles before every trip. Regular inspections can help drivers identify issues before they become dangerous and costly.

During the external inspection portion of the pre-trip vehicle inspection test, you must verify that the steering box is securely mounted and not leaking.

The faster you drive, the hotter your engine and tires will become. When it is very hot, you can help prevent this overheating by decreasing your speed.

You must be at least 21 years old and have at least one year of driving experience to be licensed to drive in interstate commerce or to transport hazardous materials.

If you are involved in a crash, the three basic things you need to do are protect the area, notify the proper authorities, and care for anyone injured. It is important to protect the accident site immediately after the accident occurs to help prevent another crash from happening in the same location.

Tire load is defined as the maximum safe weight that a tire can carry at a specified pressure.

When backing with a trailer, begin by turning the steering wheel in the direction opposite of the turn. Once the trailer starts to turn, reverse the direction of the steering wheel to follow the trailer.

For your own safety, when placing reflective warning triangles, you should carry them between your body and the oncoming traffic.

Always be sure that you are driving in a manner that will allow your vehicle to come to a complete stop, if necessary, within the area of the road ahead that you are able to see.

During the on-road driving test, do not stop, change gears, pass another vehicle, or change lanes while any part of your vehicle is in a railroad crossing.

For the first step of a vehicle inspection, you should review the last inspection report on your vehicle, if there is one. The carrier should have repaired any problems noted on the report.

A large vehicle may need to swing right to make a left turn. If an intersection has two left turn lanes, the driver should choose the righthand land to begin their turn.

Most newer heavy-duty vehicles use dual air brake systems. A dual air brake system has two separate air brake systems which use a single set of brake controls.

Many large vehicles have curved, convex mirrors. Convex mirrors allow drivers to see a wider area than flat mirrors. However, they also make objects seem smaller and farther away than they really are.