Trucking General KnowledgePractice Test

These questions are part of the practice quiz. Start practicing

• What is the effect of a driver’s traffic violation history on insurance premiums?
• What should you do when your vehicle's drive wheels start to spin while starting from a stop?
• Why is using turn signals correctly critical?
• Which of the following best describes a conditional driver's license?
• When dealing with a coolant container in a pressurized system, which statement is true?
• What is the minimum following distance you should maintain behind a large truck?
• When should you perform a post-trip inspection?
• In foggy conditions, what should drivers do?
• How can drivers decrease the risk associated with blind corners?
• What can result from a shift in a truck's center of gravity?
• If a turn requires you to enter another traffic lane, what should you do?
• How often should a truck driver check their tires?
• When exiting a highway with a heavy vehicle on a downhill curve, what is the best practice?
• How can you check that your service brakes are functioning properly?
• What does the term "jackknifing" refer to in trucking?
• What is the purpose of a qualified cargo securement system?
• What is the primary purpose of the Federal Motor Carrier Safety Administration (FMCSA)?
• The driver must be able to see a warning that is given when air pressure in the service air tanks falls below what psi?
• What scenario would most likely require a conditional license?
• When is it appropriate to stay in the left lane on a multi-lane road?
• Driving through heavy rain can cause your brakes to get wet. What can this lead to when the brakes are applied?
• What is the legal blood alcohol concentration (BAC) limit for a person 21 years or older?
• A yellow curb indicates which of the following?
• Which statement about double-clutching and shifting is accurate?
• What happens when the driver crosses the air lines while hooking up to an old trailer?
• Under normal conditions, to engage the parking brakes, the driver must first:
• What should a driver do before backing up their truck?
• What does this sign (+) indicate?
• If you reach an intersection at the same time as a driver on your left, who has the right of way?
• What action is most effective in maintaining control of a heavy truck on a slippery surface?
• Which of the following factors does NOT affect stopping distance?
• To prevent a rollover while driving, which practice is advised?
• Which of the following is NOT included in a pre-trip inspection of the engine compartment?
• What does stab braking involve?
• Which statement about fatigue management programs is correct?
• What is the main purpose of a truck's air brake system?
• When should you use low beams instead of high beams?
• What may happen if the alcohol evaporator is not kept filled with alcohol in an air brake system?
• If you must make an emergency stop, you should brake so that you:
• The proper method of braking when going down long and/or steep grades is to brake until your speed is about ___ miles per hour below your "safe" speed and then release your brakes.
• What is the purpose of a "trip plan"?
• What action should a driver take if they experience hydroplaning?
• Why is a broken exhaust system dangerous?
• After selling your vehicle, who must you notify within 5 days?
• What should you do if you are unsure about the overhead clearance while driving?
• What is the proper way to hold a steering wheel?
• What age must a driver be to obtain a CDL for interstate driving?
• Which of the following is a technique used in defensive driving?
• What should be the minimum air pressure in the service air tanks to ensure proper operation?
• After locking the kingpin into the fifth wheel, how can you confirm the connection is secure?
• If your truck or bus has dual parking control valves, what can you use pressure from a separate tank for?
• Which characteristic is NOT typical of a front tire failure?
• What is a potential consequence of driving with low air pressure?
• What should be done if cargo shifts during transport?
• If air pressure does NOT build up to normal within the correct amount of time, then:
• If you must drive through deep puddles or flowing water, what can help keep your brakes working?
• During a vehicle inspection, checking the ____ will not help prevent a fire.
• Under what circumstances is a full stop required at all railroad grade crossings?
• Which of the following best defines "hazardous materials" in the trucking context?
• In what scenarios are blind corners most hazardous?
• What should you do if your vehicle starts to skid?
• Without a HAZMAT endorsement, you may drive a vehicle hauling hazardous materials when?
• The distance that you should look ahead of your vehicle while driving amounts to about ____ mile at highway speed:
• What is the maximum permissible air leakage rate for a combination vehicle when the engine and brakes are off?
• Why is it important to maintain proper tire pressure in a truck?
• What critical aspect does driver fatigue affect according to safety standards?
• Which of the following drives the need for fatigue management in trucking?
• What does the "seven-step process" for pre-trip inspections include?
• What may happen if you do not follow the restrictions of your conditional driver's license?
• At what distance should drivers be prepared to stop if a red light is illuminated?
• In terms of vehicle maintenance, what is a common impact of excessive idling?
• What is the minimum following distance you should maintain when driving behind another vehicle?
• Which is a safe practice for managing a tailgater?
• What could potentially happen if a driver ignores load limits?
• In a conditional license scenario, what is often a factor in determining the license holder's privileges?
• When calculating the safe driving speed, what should a driver consider?
• What is the "stop distance"?
• What can blind corners lead to in terms of vehicle safety?
• Emergency stab braking involves:
• What do "blind spots" refer to for truck drivers?
• Which factor can most impact visibility while driving a truck?
• What should drivers do when approaching a work zone?
• What should drivers do to ensure their trailer is properly secured during coupling?
• Which brake system applies and releases the brakes when the driver uses the brake pedal?
• What does the term "bobtail" refer to in trucking?
• What is the standard maximum weight limit for trucks on the interstate highway system?
• Total stopping distance for air brakes is longer than that for hydraulic brakes due to:
• When checking your brakes and suspension system during a pre-trip inspection, which statement is true?
• What is the term for a commercial vehicle's habit of swinging wide on turns?
• What is the maximum permissible air leakage rate for a straight truck or bus air brake system with the engine off and brakes released?
• Excessive use of the service brakes can lead to:
• For a first offense of driving commercial vehicles under the influence of alcohol or drugs, what is the minimum duration of a CDL suspension?
• Most serious skids result from which of the following actions?
• What should a driver do before loading cargo?
• When should double-clutching be applied according to safe driving practices?
• Before backing under a trailer, which safety check is necessary?
• After coupling a trailer to a tractor, the tractor protection control valve should be in what position?
• What is the speed limit at a blind intersection?
• Why is adjusting mirrors correctly important for drivers?
• Which of the following actions is commonly restricted under a conditional driver's license?
• Where is it illegal to park?
• Why is driver fatigue considered a significant safety issue?
• When parked on the side of the road at night, what must you do to ensure safety?
• What function does the brake pedal in an air brake system primarily serve?
• Backing a commercial vehicle is considered:
• Why is it significant for truck drivers to maintain a good driving record?
• What is the primary use of the left lane on a multi-lane road?
• When preparing to back under a trailer, which alignment is correct?
• What does "implied consent" refer to?
• What is the primary purpose of reflective tape on trucks?
• What additional consequence may you face after being convicted of driving under the influence?
• Containerized loads are typically used when:
• What effect do convex (curved) mirrors have on objects?
• What is the primary purpose of retarders in a commercial vehicle?
• When driving in cold weather, what should you do regarding tire tread?
• What is the purpose of a vehicle's tachometer?
• Why is it important to manage fatigue among drivers?
• What are the consequences of ignoring load security?
• Which component is crucial for the proper function of brakes in air brake systems?
• What is typically included in a pre-trip vehicle inspection?
• Which of these is NOT a proper time to apply the parking brakes?
• What is essential to do after placing the tractor-trailer in a stationary position?
• What is required regarding the daily vehicle inspection report?
• What kind of breaks are recommended by fatigue management programs?
• What is the safest method for changing lanes in a truck?
• What is a key benefit of a truck-escape ramp?
• Which of the following reasons could lead to receiving a conditional driver's license?
• What is the purpose of Electronic Logging Devices (ELDs)?
• If a driver is involved in an accident, what should they do first?
• When should you use the hand valve to park a combination vehicle?
• At 55 mph on dry pavement, approximately how much total stopping distance do you need?
• Which statement is true regarding large trucks?
• What is the first step you should take if you encounter a flat tire while driving?
• What is a key benefit of implementing a fatigue management program?
• What is counter steering?
• Which of these is true about mirror adjustment?
• What does "oversteering" indicate?
• What is a CDL?
• What is "overloading" in the context of trucking?
• What is the main reason for truck drivers to understand regulations regarding hazardous materials?
• When is it safe to return to your driving lane after passing another vehicle?
• Which strategy is commonly included in a fatigue management program?
• How does a truck driver best handle a situation with aggressive drivers?
• What function does an "air brake system" serve in heavy vehicles?
• After driving onto the right shoulder to avoid a crash, how should you return to the pavement?
• What is "road rage," and how should it be managed?
• Why is it essential to check tire pressure before a trip?
• What does a yield sign indicate?
• It is illegal for a person 21 years of age or older to drive with a blood alcohol concentration (BAC) of what percentage or higher?
• Which of the following is NOT a condition associated with having a conditional driver's license?
• What does brake lag refer to?
• What is the best practice when approaching a rail crossing?
• What is the purpose of a logbook for truck drivers?
• What should you do to stop a trailer skid effectively?
• If you cannot see a car in your mirror but were aware of its approach, what should you do before changing lanes?
• Why is it important to readjust the side mirrors during vehicle setup?
• How should placards be displayed on vehicles hauling hazardous materials?
• What type of pressure must the parking or emergency brake on a heavy vehicle be held by?
• Which of these statements about staying alert to drive is true?
• Which brake system should be tested while the vehicle is stopped?
• What should a driver do if they hold a conditional license and want to drive unsupervised?
• Why will your vehicle speed naturally increase on downgrades?
• What do "hour of service" regulations govern?
• When uncoupling a trailer, after shutting off the trailer air supply, what should be your next step?
• What is the consequence of not adhering to safe driving practices in a work zone?
• What action is recommended to help maintain visibility in inclement weather?
• What does "deadhead" mean in trucking terminology?
• When making a wide right turn from a two-lane street, which figure indicates the correct method?
• When approaching an intersection, what is recommended for drivers to do?
• When should a driver utilize high beams?
• Conditional licenses often have specific limitations. What is one common limitation?
• What does the acronym DOT stand for in the context of trucking regulations?
• What should a driver do if they experience brake failure?
• Which component is crucial to manage during steep descents?
• What is the "following distance" rule?
• Why is a pre-trip inspection important for truck drivers?
• You should signal continuously while turning because:
• To avoid fatigue on long trips, what is a recommended practice?
• What is a significant risk associated with ice forming in the air storage tanks?
• If you have a conditional driver's license, what is a requirement you must follow while driving?
• What should a driver do if the load shifts during transit?
• If you have a conditional driver's license, what must you adhere to?
• What should drivers do if they encounter a tire blowout while driving?
• If a car suddenly cuts in front of you, which action should you avoid?
• What should you do if your vehicle begins to skid?
• What can be a consequence of hard braking in a truck?
• What is referred to as the "no-zone"?
• What is a "blind corner" in driving terms?
• What is the maximum legal blood alcohol concentration (BAC) limit for commercial drivers?
• How does a conditional license typically affect driving responsibilities?
• When you double your speed, the destructive power in a crash increases by approximately how many times?
• Which of the following best describes the function of a blind corner?
• What is the minimum age requirement to obtain a CDL in most states for intrastate driving?
• What is the main purpose of safety training for truck drivers?
• What should be done before checking the free play of manual slack adjusters on s-cam brakes?
• What is the primary purpose of the trailer air supply valve?
• What is an important procedure after coupling a trailer?
• What should drivers do if they experience mechanical failure during a trip?
• When driving down a long, steep hill in a truck with a manual transmission, which gear is typically appropriate?
• In what situation should you apply gradual brakes when coming out of water?
• What does the acronym GVWR stand for?
• What is the first step to take if your brakes fail while driving?
• What does the air compressor governor control?
• What type of area typically indicates a blind corner?
• What is a key factor in preventing accidents when driving large trucks?
• What is an essential step in pre-trip inspections for trucks?
• Before driving a truck or bus with a dual-air brake system, what should the pressure in each system be at least?
• If a lower pressure warning comes on for one system in a truck with a dual air brake system, what should the driver do?
• How frequently should rest breaks be scheduled according to fatigue management principles?
• How often should pre-trip inspections be conducted?
• What safety advantage does a good understanding of blind spots provide to truck drivers?
• What type of feedback do ELDs provide to truck drivers?
• Which of the following is NOT a consequence of improper tire pressure?
• On which type of fire is it safe to use water?
• Why are load limits particularly important for trucks?
• To unlock the fifth wheel, you should pull the release hand to which position?
• Why is it important for truck drivers to be aware of their surroundings?
• During a pre-trip inspection, which issue must be fixed before driving?
• In which lane should you start a U-turn when driving on a street with two lanes in each direction?
• Why is it important to check the air pressure regularly in a dual-air brake system?
• What should be done if a driver starts to experience fatigue during a long trip?
• What is the primary purpose of a fatigue management program for drivers?
• How can adverse weather conditions affect truck driving?
• What does the term "scale" refer to in the trucking industry?
• What is one risk associated with blind corners?
• In which situation should you never rely solely on the service brakes?
• Which of the following is a critical factor in maintaining control during adverse conditions?
• For a coupling to be complete, the safety catch for the fifth wheel locking lever must be positioned how?
• How do you supply air to the trailer tanks?
• What can excessive idling potentially lead to for an engine?
• How often must a CDL medical certificate be renewed?
• What condition must be met when the front trailer supports are up and the trailer is resting on the tractor?
• When should you perform a visual inspection of your trailer before hitting the road?
• What is "defensive driving" primarily focused on?
• What should you do if road conditions become hazardous?
• What should drivers with a conditional driver's license prioritize while driving?
• What is one type of restriction you might have with a conditional driver's license?
• What should a driver do if they feel fatigued during a trip?
• What is the speed limit in an alley?
• You can see a marking on a vehicle ahead of you. The marking is a red triangular shape with an orange center. What does the marking mean?
• What is a key factor in maintaining balance during turns with a loaded trailer?
• What effect does the brake pedal have in an air brake system?
• Which method is NOT recommended when preparing to back a tractor-trailer?
• What is advisable when driving at night?
• If you are being tailgated, what should you do?
• What does the parking brake's design prevent in heavy vehicles?
• What is the primary risk associated with wet brakes?
• Why is it important to allow for brake cooling after descending a hill?
• What is a common cause of tire blowouts in trucks?