New York CDL DMV Knowledge Test Class B 2

Skids caused by acceleration can usually be corrected by taking your foot off of the accelerator. If you are on an especially slippery surface, you may also need to push the clutch in.

A vehicle's total stopping distance is made up of perception distance, reaction distance, brake lag distance, and braking distance. With all of these factors included, an air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately 450 feet to come to a complete stop.

The parking brake in a vehicle with air brakes should be used every time the vehicle is parked.

Operating a CMV with a minimum blood alcohol content (BAC) of 0.04 percent is illegal and will result in loss of license for at least one year for a first offense. If you operate a CMV with any detectable amount of alcohol in your system while remaining below the legal limit of 0.04 percent, you will be put out-of-service for at least 24 hours.

After a tire has been changed, you should stop after a short distance to re-check the tightness of the wheel nuts.

In an air brake system, the air compressor governor controls when the air compressor pumps air into the air storage tanks.

You can be fined between $75 and $300 for driving a commercial motor vehicle without the appropriate license.

The function of an Anti-Lock Braking System (ABS) is to prevent the vehicle's wheels from locking up from hard brake application.

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

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.

Before driving a vehicle with a dual air brake system, you must allow the air compressor time to build up at least 100 psi of air pressure in both the primary and secondary systems.

While driving, you should consistently check the road ahead for hazards. Develop a plan to deal with any hazards that could arise.

Make a point of checking your mirrors often when making tight maneuvers.

If you must drive in fog, you should use your low beam headlights and fog lights, even during the day.

In an air brake system, there are three different braking systems: a service brake system, a parking brake system, and an emergency brake system. The emergency brake system uses parts of both the parking and service brake systems.

Under New York State law, you may only talk on a cell phone while driving if you are using a hands-free device. Be aware that even hands-free devices are unsafe to use while you are actually moving down the road.

If there is enough water on the road, hydroplaning can occur at speeds as low as 30 mph. It is most likely if the tires' air pressure is too low or if tires' tread is worn.

For safety, you must wear your seat belt at all times while operating a CMV.

Vehicles with Anti-Lock Braking Systems (ABS) have yellow malfunction lamps.

An air brake system's safety relief valve is located in the tank that is first to receive air from the compressor.

The total stopping distance for vehicles equipped with air brakes is made up of four factors: perception distance, reaction distance, brake lag distance, and braking distance. When braking at a speed of 55 mph while driving on dry pavement, the brake lag can add around 32 feet to a vehicle's total stopping distance.

To test a parking brake, you should fasten your safety belt, set the parking brake for the power unit, release the trailer parking brake (if applicable), place the vehicle in low gear, and attempt to pull forward against the parking brake. If the parking brake does not hold while you are attempting to pull forward against it, the brake is faulty and must be fixed.

The purpose of an Anti-Lock Braking System (ABS) is to prevent a vehicle's wheels from locking up when the driver brakes hard on a slippery surface.

It is important to know the maximum air loss rate that is safe for your specific vehicle. A single vehicle with air brakes should have a leakage rate no higher than 3 psi in a minute during an applied leakage test.

Frequent yawning is a warning sign of fatigue. If you become tired while driving, the only safe response is to stop and get some sleep. You cannot rely on artificial stimulants, like caffeine, to keep you alert because they will eventually wear off and leave you more tired than you originally were.

In an air brake system, the application pressure gauge shows how much air pressure is being applied to the brakes. Not all vehicles with an air brake system have this gauge.

Keep an eye on the gauges after starting the engine. The coolant temperature gauge should begin a gradual rise to the normal operating range.

The Gross Vehicle Weight (GVW) is the total weight of a single vehicle plus its load. The Gross Vehicle Weight Rating (GVWR) is the maximum combined weight of a vehicle and its cargo that is permitted and specified by the manufacturer.

Air brakes consists of three separate braking systems: the service brake system, the parking brake system, and the emergency brake system. The service brake system applies and releases the brakes when you use the brake pedal while driving normally.

Press the brake pedal down smoothly and gradually every time you slow or stop. The amount of brake pressure you need to apply depends on the speed of your vehicle and how quickly you need to stop.

When checking the exhaust system, you should verify that no parts of the system are loose, broken, or missing.

A driver uses a look when they open their door, leave their seated position, and walk to the back of the vehicle to check its position. During the straight line backing exercise, a driver may not exceed one look. During any other exercise, a driver may not exceed two looks.

You will be denied a hazardous materials endorsement, or lose an existing endorsement, if you renounce your U.S. citizenship; are not a lawful permanent U.S. resident; are wanted for, indicted for, or convicted of certain felonies; are judged mentally defective or are committed to a mental institution; or are deemed by the Transportation Security Administration (TSA) to pose a security threat.

In an air brake system, the air storage tanks must be drained to remove accumulated water and compressor oil. Failing to do so can cause damage. Manually operated drains should be used at the end of each day of driving.

Be cautious when driving near people who are working on disabled vehicles. The task will likely consume their attention, so they may not be aware of traffic or other hazards on the road.