Georgia CDL: General Knowledge Practice Test

Not quite. The answer is Learn the escape ramp locations on your route.

Before you drive in the mountains, you should know how to brake safely on grades, and you should learn the locations of escape ramps on your route. Escape ramps have been built on many steep mountain downgrades. Escape ramps are designed to stop runaway vehicles safely without injuring drivers and passengers.

Not quite. The answer is You will be put out-of-service for 24 hours.

There is no safe amount of alcohol with which to drive a CMV. Hence, if you are found to have any detectable BAC (even if it's under the legal limit of 0.04%), you will be placed out-of-service for 24 hours.

Not quite. The answer is If possible, come to a complete stop before steering back onto the pavement.

If you're forced to steer onto the shoulder to avoid a collision, try to come to a complete stop before you move back onto the road. Moving back onto the road at high speed could cause you to lose control.

Not quite. The answer is apply unevenly.

If your brakes get wet, they may apply unevenly, work weakly, or grab, any of which can be dangerous. Try to maintain light pressure on the brakes for a short distance to heat them up and dry them out.

Not quite. The answer is use your four-way flashers and brake lights to warn others.

In a work zone, drive slowly and carefully. Use your brake lights and four-way flashers to warn drivers behind you.

Not quite. The answer is Stop accelerating.

To recover from a skid, first stop doing what caused it in the first place. To recover from a drive-wheel acceleration skid, first take your foot off the accelerator. To recover from a drive-wheel braking skid, stop braking. To recover from a front-wheel skid that was caused by driving too fast for current conditions, slow down.

Not quite. The answer is Heavy vehicles need larger gaps in traffic than cars.

Large, heavy vehicles accelerate more slowly than passenger cars, and they are also longer. When driving such a vehicle, you need a much bigger gap to enter traffic than you would if you were driving a car.

Not quite. The answer is All of the above

The amount of off-tracking depends on three factors: the length of the vehicle, the sharpness of the curve or turn, and the amount of sideways drag on the rear tires. In general, the longer the vehicle, the greater the off-tracking. In a tractor-trailer, the amount of off-tracking depends on both the distance from the steering axle to the trailer kingpin, and the distance from the trailer kingpin to the trailer rear wheels. If your trailer is equipped with sliding tandems, then sliding the tandems backward will increase off-tracking. Also, the sharper the curve or turn, the greater the off-tracking. And the stronger the sideways drag on the rear tires, the greater the off-tracking.

Not quite. The answer is If the wheels are skidding, you cannot control the vehicle.

In an emergency, avoid hard braking. Hard braking can lock the wheels, which may cause a skid and loss of control. Instead, use stab braking (unless your vehicle has antilock brakes) or controlled braking.

Not quite. The answer is Leave your high beams on.

To avoid blinding other drivers, dim your headlights whenever you're within 500 feet of an oncoming vehicle or within 500 feet of a vehicle you are following.

Not quite. The answer is Use your four-way flashers or brake lights to warn others.

When approaching a hazard in a work zone, warn the drivers behind you by flashing your brake lights or (if state law allows it) turning on your four-way flashers.

Not quite. The answer is when any defects are noted.

You may have to complete a vehicle inspection report in writing each day. The motor carrier must repair any items in the report that affect safety, and certify on the report that repairs were made or were unnecessary. You must sign the report only if defects were noted and certified to be repaired or not needed to be repaired.

Not quite. The answer is In a pouch on the driver's door

Your life, and the lives of others, may depend on quickly locating the hazardous materials shipping papers. For that reason, you must identify shipping papers related to hazardous materials or keep them on top of other shipping papers. You must also keep shipping papers: in a pouch on the driver's door; or in clear view within reach while driving; or on the driver's seat when out of the vehicle.

Not quite. The answer is You should check tire mounting and air pressure before driving.

In hot weather, check the tire mounting and tire pressure carefully. Heat causes the air in the tire to expand, increasing tire pressure. Driving will make the tires even hotter. If the tire temperature and pressure rise too high, the tire may blow out or even catch fire.

Not quite. The answer is All of the above

When choosing a safe speed for driving down a steep downgrade, consider its steepness, its length, the road and weather conditions, and the weight of your vehicle and its cargo.

Not quite. The answer is 12 feet

Each lane on an interstate highway is at least 12 feet (144 inches) wide. Note that under federal regulations, the maximum width of CMVs operated on interstate highways is 8½ feet or 102 inches (approximately 2.6 meters) except in Hawaii, where the maximum width is allowed to be 9 feet (108 inches).

Source: 23 CFR 658.15

Not quite. The answer is leaks.

The most likely problem with wheel bearing seals is leaking, so you should check for grease on the wheels and any visible evidence of cracks or leaks.

Not quite. The answer is Quick starts and hard stops

Quick starts, hard stops, and extremely aggressive driving can increase fuel consumption by up to 39 percent. In addition, speeding is not only illegal, but it also wastes fuel. Finally, idling your engine for longer than 10 seconds can burn more fuel then you would by restarting the engine.

Not quite. The answer is Vibration

If the vehicle thumps or vibrates heavily, it may be a sign that one of the tires has gone flat. With a rear tire, that may be the only sign you get. A blowout is more likely to make a loud bang than a hiss.

Not quite. The answer is watch for sharp pavement drop-offs.

Dramatic pavement drop-offs are common in work zones, but they can also occur elsewhere. If you stray too near the edge of a drop-off, your vehicle may tilt toward that side of the road, and the top of your vehicle may hit a roadside object. If your vehicle crosses the drop-off, steering will be adversely affected.