CDL General "Core" Knowledge Test Exam With 100% Correct Answers 2023, Exams of Advanced Education

Download CDL General "Core" Knowledge Test Exam With 100% Correct Answers 2023 and more Exams Advanced Education in PDF only on Docsity!

CDL General "Core" Knowledge Test

Exam With 100% Correct Answers 2023

As you approach on- and off-ramps, you should remember... A) to brake sharply. B) that the posted speed limit may be too high for your vehicle. C) that the length of the ramp may be too short. D) to maintain your highway speed. - Correct Answer-B When you check your tires, which of the following should NOT cause you concern? A) Cuts in the tire wall B) Tires from different manufacturers C) Canvas showing through the rubber D) Low tire pressure - Correct Answer-B. As long as the tires match in size, are properly inflated, and are in good shape, they don't have to be from the same manufacturer. When is it safe to remove the radiator cap? A) As soon as you've stopped B) When the cap is cool enough to touch with a bare hand C) Anytime, as long as the engine isn't overheated D) Whenever it is cold outside - Correct Answer-B To pull away in snow or icy conditions, you should... A) accelerate very gradually and slowly. B) keep the brake partially depressed as you pull away. C) let the vehicle start to slide before applying the accelerator. D) quickly accelerate to your desired speed. - Correct Answer-A Excessive acceleration or braking can cause wheels to spin and skid, especially in snow or ice. Careful, gradual, gentle acceleration can avoid this. Why do vehicles hauling hazardous materials need warning placards? A) To warn other drivers to keep their distance B) To remind you to take extra care C) To let emergency services know what they are dealing with in case of an accident D) So traffic cameras can track you - Correct Answer-C If you smell exhaust fumes in the cab, what should you do? A) Open the windows. B) Make a note on your post-trip report. C) Check at the next stop. D) Stop immediately. - Correct Answer-D

How far into your trip should you make your first inspection of your cargo? A) At your first rest stop B) Within 50 miles C) Within 100 miles D) Within 25 miles - Correct Answer-B You must inspect the securement of your cargo within the first 50 miles and then every 150 miles If there are two left turn lanes for you to choose from, you should A) use either. B) use the one on the left. C) straddle the two lanes. D) use the one on the right. - Correct Answer-D If there are two left turn lanes, use the one on the right. That will leave you more room to swing around the turn and make it easier for you to see traffic on your left. How often should you check your gauges (air pressure, temperature, etc.)? A) As often as is practical B) At the beginning and end of each trip C) Every time the vehicle is stationary D) At every rest stop - Correct Answer-A Before performing Step 2 (Check Engine Compartment) of the seven-step inspection, you must check that A) the engine starts. B) the passenger door is locked. C) the parking brakes are on and/or the wheels are chocked. D) all lights are working. - Correct Answer-C Before doing anything physical with the vehicle, make sure that it can't move and endanger you or others. How do you calculate the distance between your vehicle and the one ahead of you? A) Use your odometer to measure a specific distance and divide it by the time it took you to reach there. B) Judge it by instinct. C) Estimate the length of the vehicle in front, then estimate how many vehicle lengths there are between it and you. D) Count the seconds from when the vehicle ahead of you passes some object to when you reach that same object. - Correct Answer-D Following Distance!

What is the most important reason to signal well before you turn? A) To encourage other drivers to pass you B) To avoid using the four-way emergency flashers when you are driving very slowly C) To encourage other drivers to pull into your lane in front of you D) To discourage other drivers from trying to pass you - Correct Answer-D Warn the drivers behind you that you're about to turn. If you don't signal in time, they may try to pass you on the inside. Signal/communicate your intentions Both federal and state law require __________ to inspect a commercial motor vehicle before a trip. A) the driver and a qualified engineer B) the driver C) the owner D) a qualified engineer - Correct Answer-B The responsibility for the safety and road-worthiness of your vehicle is yours alone. In very hot weather, how often should you inspect your tires? A) Every 3 hours or every 150 miles B) Every 4 hours or every 200 miles C) Every hour or every 50 miles D) Every 2 hours or every 100 miles - Correct Answer-D When you first approach your vehicle, which of these should you look out for? A) Low-hanging wires B) Low-hanging tree limbs C) People in the vicinity D) All of the above - Correct Answer-D Before doing anything with your vehicle, you should check for all potential hazards in the vicinity. The aggregate working load limit of your cargo tiedowns must be at least ______ times the weight of the cargo. A) one-half B) two C) two-and-a-half D) four - Correct Answer-A If your vehicle catches fire, where should you pull over? A) Near other vehicles B) At a service station C) In an open area D) Near a building - Correct Answer-C

Your truck's stopping distance will be shortest when it is A) empty. B) fully loaded. C) two-thirds full. D) two-thirds empty. - Correct Answer-B It may not be obvious, but the stopping distance will be shortest when the truck is fully loaded. This is because everything about the truck was designed to work best with a full load. When you drive an empty or partially filled truck, be aware that your stopping distances may be longer If you start to become sleepy while driving, what should you do? A) Stop and get some exercise. B) Stop and sleep. C) Drink plenty of coffee. D) Open the windows to get some fresh air. - Correct Answer-B The only way to overcome sleep debt is to sleep. What is the best way to know what another driver is doing? A) Watch the driver's head and body movements. B) Watch the rear lights of the driver's vehicle. C) Guess what you would do in that driver's situation. D) Watch the speed of the driver's vehicle. - Correct Answer-A Drivers may forget to signal, but they rarely fail to look where they are going. How many times should you shift gears while crossing railroad tracks? A) As many times as you think necessary B) None C) Twice D) Once - Correct Answer-B Switching gears increases the likelihood of stalling Who is responsible for making sure all lights and mirrors are clean? A) The company maintenance staff B) The vehicle's owner C) Whoever drove the vehicle previously D) The vehicle's driver - Correct Answer-D Which of these statements about a spare tire is FALSE? A) It must come from the same manufacturer as the truck's tires. B) It must be properly inflated. C) It must be the correct size. D) It must be in good condition. - Correct Answer-A

A spare tire must be the right size, in good condition, and at the right pressure. It does not need to come from the same manufacturer. When backing up, which side should you back toward? A) Neither side (go back straight) B) The right side C) The left side D) Either side - Correct Answer-B You should have at least one tie-down for every ____ feet of cargo. A) 5 B) 15 C) 20 D) 10 - Correct Answer-D The rule is one tie-down for every 10 feet of cargo. However, you must have a minimum of two tie-downs for any cargo, no matter how small. When beginning a long downgrade, which of the following should NOT influence your choice of speed? A) The weight of your vehicle plus its cargo B) The road and weather conditions C) Your schedule D) The steepness of the downgrade - Correct Answer-C Why might your brakes start to fade going downhill? A) Because of increasing centrifugal force B) Because they are overheating C) Because they've picked up gravel from the road D) Because your momentum is increasing - Correct Answer-B As your brakes start to heat up, they may become spongy and less effective. This is why it is essential to take advantage of engine braking. If you rely solely on your brakes, you may soon find yourself with no brakes at all. Which of these substances can impair your ability to drive safely? A) Some prescription medications B) Alcoholic drinks C) Some cold medicines D) All of the above - Correct Answer-D What are blocking and bracing? A) A way to keep cargo secure B) A form of coupling C) A driving technique

D) An emergency stop - Correct Answer-A Blocking is placing material tightly around your cargo to prevent movement. Bracing involves struts running from the top part of the cargo to the floor or walls of the cargo compartment, also to prevent movement. What is the safest way to control your speed on a downgrade? A) Use your brakes at all times. B) Coast in neutral. C) Use engine braking. D) Swing wide around curves. - Correct Answer-C This will allow you to preserve your brakes for particularly steep areas instead of using them all the time and having them fade. As you approach a work crew on the highway, you should A) slow down. B) flash your lights. C) sound your horn. D) rev your engine. - Correct Answer-A Why should you make sure to keep your vehicle in the middle of your lane? A) To keep other vehicles from passing you B) To leave the most space for a turn C) To avoid drop-offs (sharp differences in elevation) D) To let other drivers get the best view of you - Correct Answer-C What is the most important reason for your pre-trip inspection? A) To make sure you've signed for the right cargo B) To make sure you won't be blamed for any existing damage C) To make sure you've got the right paperwork D) To make sure that the vehicle is safe - Correct Answer-D How should you check for leaks in hydraulic brakes? A) Pump the brake pedal 3 times, then hold it down for 5 seconds. B) Drive forward, then slam on the brakes hard. C) Hold the brake pedal down for 5 seconds, then pump it 3 times. D) Depress the pedal and listen for leaks. - Correct Answer-A Pumping the brake pedal should cause resistance. Then you should be able to hold the brake pedal for 5 seconds without feeling any weakness or give. If you're driving a 30-foot vehicle below 40 miles per hour, how much following distance should you leave between you and the vehicle in front? A) 5 seconds B) 4 seconds

C) 2 seconds D) 3 seconds - Correct Answer-D The formula for following distance is one second per ten feet of vehicle, plus an extra second if you are traveling over 40 mph. So for a 30-foot vehicle below 40 mph, this works out to 3 seconds. This is the minimum; other factors such as visibility and road conditions may require you to leave more room. You should downshift in advance before A) turning at a junction. B) approaching a bridge. C) entering a curve or downgrade. D) approaching a tunnel. - Correct Answer-C Where can you find the maximum weight loading for a given tire pressure? A) On your manifest B) On the dashboard C) On the tire D) In the CDL manual - Correct Answer-C Every tire should have its maximum weight loadings for different tire pressures written on the tire wall. Next Question A GPS device A) should have audible as well as visual warnings. B) should be made in the USA. C) should have a screen larger than 4 inches. D) should be designed for truck navigation. - Correct Answer-You should always use a GPS system that is designed for truck navigation. Such a truck-enabled GPS device contains information about truck-restricted roadways and designated routes and takes into account the size of your truck (length, weight, height, and load types) as it routes. A truck-enabled GPS device won't direct you onto roads that are unsuitable for your truck or on which trucks are prohibited. Your hands should be at the _______ o'clock positions on the steering wheel. A) 11 and 1 B) 4 and 8 C) 10 and 2 D) 3 and 9 - Correct Answer-D When double clutching, what should you do if you have difficulty getting into the next gear? A) Force the lever until you get into gear. B) Rev the engine to jolt the transmission. C) Return to neutral, increase the engine speed to match road speed, and try again.

D) Drop back to the previous gear. - Correct Answer-C If you have difficulty getting into the next gear, do NOT try to force it. Instead, return to neutral, release the clutch, increase the engine speed to match road speed, and try again. What is the minimum tread depth for tires that are not front tires? A) 1/32 inch B) 3/32 inch C) 2/32 inch D) 4/32 inch - Correct Answer-C When checking your vehicle's load, you must make sure it conforms to A) all local, state, and federal regulations that apply to your journey. B) all federal regulations only. C) the local regulations of the jurisdiction you are starting from. D) the state regulations of your destination. - Correct Answer-A You should NOT use water on a _______ fire. A) gasoline B) tire C) wood D) paper - Correct Answer-A If you pour water on burning gasoline, you will just spread the burning gasoline over a wider area. Instead, use a fire extinguisher that is rated class B (flammable liquids) at least. Before descending a hill, you must be in the right gear because A) it will help extend the life of the transmission. B) it's illegal to change gears on a hill. C) you won't be able to downshift after you start descending. D) it will help you speed up when you get to the bottom. - Correct Answer-C Which of the following should make you reject a vehicle until it is corrected? A) Tires of different sizes B) Tires from different manufacturers C) Tires that are retreads D) Tires that have different tread patterns - Correct Answer-A When you see a hazard ahead, what should you do? A) Come to a dead stop. B) Alert others by pointing and sounding your horn. C) Speed up to pass it as quickly as possible. D) Start planning what to do if the hazard becomes an emergency. - Correct Answer-D

What's the most important tool you have for monitoring the condition of your vehicle on the road? A) Your senses (eyesight, hearing, smell, feel) B) The truck manual C) The gauges D) Comments from other truckers - Correct Answer-A How does "bleeding tar" affect the road surface and driving conditions? A) It is very sticky and slows down your vehicle. B) It makes the road slippery. C) It does not affect the road surface or driving conditions. - Correct Answer-B Can federal inspectors inspect your truck or bus? A) Yes, and they might place it out-of-service. B) No. C) Yes, but they will not place it out-of-service. - Correct Answer-A Federal or state inspectors may inspect your vehicle. If they find a problem that makes the vehicle potentially unsafe, they will put the vehicle out-of-service until the problem is fixed.