Idaho CDL DMV Knowledge Test Class A 2

Black ice is a thin layer of ice that is clear enough for the road surface to be seen through it. Be alert to black ice any time the temperature is below freezing and the road surface looks wet.

Any vehicle with air brakes must be equipped with a low air pressure warning signal.

If you are asked to complete an offset back/right parking maneuver, you should first pull straight forward, then back up to the right. Your vehicle must be parked completely within the boundaries of the parking space.

When driving under foggy conditions, lights cannot be taken as a reliable indication of where the road is. The lights may be coming from a vehicle that has pulled off the road.

If you must stop on the side of the road, make sure to use your four-way emergency flashers. This is particularly important at night.

If you are convicted of any traffic violations while driving any vehicle, you must notify your employer within 30 days of the conviction. This rule excludes parking violations.

Driving with dry bulk tanks requires special care because they usually have high centers of gravity. It is also important for drivers to be prepared for the contents to shift in transit.

When inspecting your brakes, you should check for cracked drums; shoes or pads covered in oil, grease, or brake fluid; and shoes that are missing, broken, or worn dangerously thin.

When properly adjusted, your mirrors should each display some part of your vehicle. Being able to see your own vehicle in your mirrors will give you a point of reference when judging the positions of other objects.

Fatigued drivers are slower to see or react to hazards than drivers who are not fatigued. Drivers are impaired in their ability to make critical decisions when they are driving drowsy.

Front-end header boards, also known as "headache racks," protect the driver from cargo moving in the event of a crash or emergency stop.

You should shift your vehicle's transmission into a low gear before staring a downhill grade. Be prepared for gravity to increase your vehicle's speed when traveling downhill.

Over-length, over-width, and/or overweight loads may require special permits to be transported. In some cases, it may be necessary for the load to be accompanied by a pilot vehicle with warning signs and flashing lights or a police escort.

Once you have begun to drive after a tire has been changed, you should stop after a short distance to recheck the tightness of the lug nuts.

Regrooved, recapped, or retreaded tires are prohibited on the front wheels of a bus.

As you exit your vehicle during the basic vehicle control skills test, you must face the vehicle and maintain three points of contact at all times. If your testing vehicle is a bus, you must maintain contact with the handrail. Exiting the vehicle incorrectly may result in automatic failure of the basic control skills test.

It is the driver's responsibility to inspect their cargo; recognize overloading or poorly balanced weight; know that the cargo is properly secured and does not obscure the driver's view; and know that the cargo does not restrict access to emergency equipment. The driver is responsible for their cargo even if they were not the one who initially loaded and secured the cargo.

When inspecting a vehicle, you should verify that your dual tires do not come into contact with one another, or with any other part of the vehicle.

Though a driver cannot inspect a sealed load, they should still ensure that the load does not exceed applicable weight limits.

Even if they did not load or secure the cargo themselves, the driver of a vehicle is responsible for inspecting the cargo and ensuring that it is properly secured.

All states share driver information through a computerized database in order to prevent the issuance of multiple licenses to a single person. It is prohibited for a person to have more than one driver license.

During a pre-trip inspection, you should verify that the air pressure is neither too low nor too high in any of your tires.

When checking the tires as part of a pre-trip inspection, make sure the tires have sufficient tread. There should be at least 4/32 of an inch of tread in every major groove of the front tires, and at least 2/32 of an inch of tread depth on the other tires. Tires should not be mismatched in size and radial and bias-ply tires should not be used together.

When accelerating, speed up smoothly and gradually so the vehicle does not jerk. Rough acceleration can cause mechanical damage.

Friction inside a brake drum is caused when the brake shoes and linings push against the inside of the drum. The friction in the drums will slow and stop the vehicle.

Your truck may block the views of drivers behind you, making them unaware of any upcoming hazards that require you to stop. For this reason, it is a good idea to flash your brakes and warn other drivers before slowing or stopping.

A first conviction of operating a CMV with a blood alcohol content (BAC) of 0.04 percent or higher will result in the loss of your CDL for one year. A second conviction of operating a CMV with a minimum BAC of 0.04 percent will result in the loss of your CDL for life.

Gross Vehicle Weight Rating (GVWR) is the value specified by the manufacturer as the loaded weight of a single vehicle.

Slow down and be especially careful when driving in and around work zones, in places where the pavement drops off sharply at the edge of the road, when foreign objects are present on the road, and on freeway on- and off-ramps.

Using a hand-held mobile telephone while operating a CMV is both illegal and dangerous.

If you experience an engine fire, you should turn off the engine as soon as safely possible. Avoid opening the vehicle's hood when extinguishing the fire.

To avoid becoming fatigued on a long trip, you should take a break after every 100 miles or two hours of driving. Driving through the night, or during any other time when you would normally be asleep, raises the danger of fatigue.

Cargo should be blocked to prevent it from sliding around in transit. The shifting of weight in transit can make steering and handling difficult for the driver.

If the low pressure warning signal activates while you are driving, it is important that you safely exit the roadway as soon as possible and park your vehicle. If the air pressure gets too low, the brakes will no longer work well enough for you to stop safely.

You will lose your CDL for at least one year if you are found to be operating with a blood alcohol concentration (BAC) of 0.04 percent or higher. It is both illegal and dangerous to operate a CMV while under the influence of alcohol.