Oregon General Knowledge Practice Test
This is our Oregon General Knowledge Practice Quiz and Practice Test compiled of 50 questions each. Each question is worth two points for a total of 100 possible points. A passing score is 80%.
The General Knowledge Practice Quiz reveals the correct answer during each question to help you study for the actual General Knowledge test. The General Knowledge Practice Test doesn’t reveal the correct answers until the test is over.
The questions and answers are given in random order each time you retake the test. When you are finished testing, simply click on the “Get Results” button to see your test results. Clicking on the blue “List” button will reveal a list of all the questions you answered correctly and incorrectly. To take the test again, just refresh your browser window. It’s that easy.
Press the start button to begin your free General Knowledge Practice Quiz. Good luck!
General Knowledge CDL Practice Quiz
Question 1 |
A | Load cargo toward the rear of the truck for easier unloading. |
B | Load more weight over the drive axle for better traction. |
C | Load cargo weight evenly over all the axles. |
D | Load more cargo toward the front of the truck for a full load. |
Question 2 |
A | there is a slight vibration when you press down on the brake pedal. |
B | you release pressure on the brake pedal and speed increases. |
C | you have to push harder and harder to get the same stopping power on a downgrade. |
D | the brake pedal feels firm when you apply pressure. |
Question 3 |
A | Push the brake pedal firmly 5 seconds; listen for leaks. |
B | Move forward slowly and push firmly on the brake pedal. |
C | Pump the brake pedal 3 times; push the pedal firmly 5 seconds; the pedal should not move. |
D | Pump the brake pedal 5 times; push the pedal firmly 3 seconds; the pedal should not move. |
Question 4 |
A | Grease fire. |
B | Gasoline fire. |
C | Electrical fire. |
D | None of these fires can be safely extinguished by water. |
Question 5 |
A | if any problems occurred the last the time the vehicle was operated. |
B | at least once a week. |
C | whenever you stop to refuel. |
D | before operating the vehicle. |
Question 6 |
A | you will be parked for a short time. |
B | testing the trailer brakes after hooking up to a trailer. |
C | there is ice and snow, to prevent skidding. |
D | it is absolutely necessary. |
Question 7 |
A | require greater stopping distance than full trucks |
B | need less space ahead than full trucks |
C | have better traction when stopping than full trucks |
D | have the same stopping distance as full trucks |
Question 8 |
A | Put your warning devices out within 15 minutes. |
B | Turn on your 4-way emergency flashers to warn other drivers. |
C | Warn other drivers by using your left turn signal lights. |
D | Keep your low beam lights on. |
Question 9 |
A | tunnels, overpasses |
B | law enforcement officers, detours |
C | truck stops, gas stations |
D | vehicles, traffic signs |
Question 10 |
A | Perception distance, reaction distance, and braking distance. |
B | Perception distance, response distance, and reaction distance. |
C | Perception distance, slowing distance, and braking distance. |
D | Observation distance, reaction distance, and slowing distance. |
Question 11 |
A | before going up a hill and before entering a curve. |
B | before starting down a hill and before going up a hill. |
C | before starting down a hill and before entering a curve. |
D | before starting down a hill and before entering a tunnel. |
Question 12 |
A | three |
B | four |
C | two |
D | one |
Question 13 |
A | Play in the steering wheel of more than ten degrees (two inches on a 20-inch steering wheel). |
B | Play in the steering wheel of more than five degrees. |
C | Too many vertical stacks. |
D | Oil on the tie rod. |
Question 14 |
A | To see the blind spots you can't see. |
B | To watch for steering errors. |
C | To direct traffic away from you. |
D | To prevent others from distracting you. |
Question 15 |
A | seal is authentic. |
B | placard numbers match the seal numbers. |
C | load is properly secured. |
D | seal is secure. |
Question 16 |
A | the kingpin is about 1¼ inches above the fifth wheel. |
B | the end of the kingpin is even with the top of the fifth wheel. |
C | it will be raised slightly when the tractor is backed under it. |
D | the end of the kingpin is at waist level. |
Question 17 |
A | check to make sure that the brakes are properly balanced. |
B | downshift into the turn. |
C | keep the cargo as close to the ground as possible. |
D | keep two hands firmly planted on the steering wheel at all times. |
Question 18 |
A | Using turn signals, 4-way flashers, headlights, and the horn. |
B | Using hand signals. |
C | Using your CB radio or cell phone to inform others. |
D | Using a helper when backing up. |
Question 19 |
A | driving too fast for road conditions. |
B | driving too slow for road conditions. |
C | poorly adjusted brakes. |
D | bad tires. |
Question 20 |
A | two times |
B | half |
C | three times |
D | four times |
Question 21 |
A | The same amount of space you would at night. |
B | The same amount of space you would on a dry road. |
C | One vehicle length for every 10,000 lb. of gross vehicle weight. |
D | More space than is needed for ideal driving conditions. |
Question 22 |
A | turn right and drive over the curb |
B | start the turn, then back up to re-position |
C | turn wide before you start the turn |
D | turn wide as you complete the turn |
Question 23 |
A | use windshield washer fluid as coolant. |
B | safely remove the radiator cap and add coolant while the engine is hot. |
C | use only water in the cooling system. |
D | check the coolant level of a hot engine. |
Question 24 |
A | exempt from hazardous materials restrictions. |
B | exempt from weight limit restrictions. |
C | exempt from height restrictions. |
D | generally used when freight is carried part way by rail or ship. |
Question 25 |
A | dual tires that touch, hot road surfaces |
B | over-heated brakes, under-inflated tires |
C | under-inflated tires, dual tires that touch |
D | poor-quality retreads, under-inflated tires |
Question 26 |
A | Because tank baffles are not always legal with outage. |
B | Because some liquids expand more than others when they get warm. |
C | Because it's good to know that information. |
D | Because some of the heaviest liquids don’t need any. |
Question 27 |
A | rubbing |
B | burning |
C | leaks |
D | rust |
Question 28 |
A | depends on the service brakes being in adjustment. |
B | is not affected by the condition of the service brakes. |
C | increases when the service brakes are hot. |
D | decreases when the service breaks are hot. |
Question 29 |
A | the legal weight limits. |
B | neither of these. |
C | the weight of the liquid. |
D | both of these. |
Question 30 |
A | the load can catch fire easily. |
B | a dry bulk tank should only be filled halfway. |
C | the load should not get wet. |
D | the load can shift. |
Question 31 |
A | sidetracking. |
B | fishtailing. |
C | offtracking. |
D | slidetracking. |
Question 32 |
A | make sure you are driving slow enough so you can stop within the range of your headlights in case of an emergency. |
B | roll down your window so that the fresh air will help keep you awake. |
C | keep your high beams on at all times. |
D | drink coffee or other caffeine products to help keep you awake. |
Question 33 |
A | stop to sleep. |
B | turn up the radio. |
C | slap yourself in the face three times. |
D | roll down the windows. |
Question 34 |
A | to warn others of hazardous materials. |
B | to combat terrorism. |
C | to make your vehicle look official. |
D | to avoid mixing hazmat with food. |
Question 35 |
A | to ensure safety for yourself, your passengers, and other drivers. |
B | because it is a requirement for all drivers. |
C | because law enforcement may inspect your vehicle on the road. |
D | to help ensure the vehicle will make it to your destination. |
Question 36 |
A | 4/32-inch in every major groove. |
B | 2/32-inch in every major groove. |
C | 5/32-inch in every major groove. |
D | 3/32-inch in every major groove. |
Question 37 |
A | Use the same gear you would use to climb the hill. |
B | Use a higher gear than you would use to climb the hill. |
C | Shift the truck into neutral and coast down the hill to save gas. |
D | Use a lower gear than you would use to climb the hill. |
Question 38 |
A | loose fuel connections |
B | both loose fuel connections and under inflated tires |
C | under inflated tires |
D | eating spicy food in the truck cab |
Question 39 |
A | the trailer is fully loaded or very heavy. |
B | the trailer is empty or lightly loaded. |
C | the trailer is being hauled at high speed. |
D | the trailer is out of brake adjustment. |
Question 40 |
A | The drinker's brain is increasingly affected. |
B | Judgment and self-control are the first to be affected. |
C | All of these things happen. |
D | Muscle control and coordination are affected. |
Question 41 |
A | The same amount of stopping distance. |
B | Shorter stopping distance. |
C | It depends on what mood you are in at the time. |
D | Greater stopping distance. |
Question 42 |
A | Slow to a safe speed before the curve. |
B | Downshift after you are in the curve. |
C | Turn on your four-way flashers as you approach the offramp. |
D | Nothing, because the posted speed limit for the offramp is usually 10 miles per hour below the safe speed limit for the offramp. |
Question 43 |
A | rolled down windows |
B | sunglasses |
C | rear view cameras |
D | mirrors |
Question 44 |
A | five or more. |
B | three or more. |
C | none of these. |
D | seven or more. |
Question 45 |
A | you are driving on hilly, rural roads. |
B | the road is wet, icy, or snow covered. |
C | road conditions are excellent. |
D | you are driving on the freeway. |
Question 46 |
A | you want to have time to act before it turns into an emergency. |
B | it is a federal law. |
C | you want to have a plan to communicate the risk. |
D | you want to avoid doing something all of a sudden. |
Question 47 |
A | two inches |
B | one inch |
C | three inches |
D | one half inch |
Question 48 |
A | A minimum of three. |
B | A minimum of one. |
C | A minimum of four. |
D | A minimum of two. |
Question 49 |
A | the wheel needs cleaning. |
B | the lug nut is cheap. |
C | the lug nut needs to be replaced. |
D | the lug nut is loose. |
Question 50 |
A | A stopped transit bus. |
B | All of these are considered a hazard. |
C | Pedestrians and bicyclists. |
D | Road construction zones. |
← | List | → |
| 1 | 2 | 3 | 4 | 5 |
| 6 | 7 | 8 | 9 | 10 |
| 11 | 12 | 13 | 14 | 15 |
| 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 |
| 26 | 27 | 28 | 29 | 30 |
| 31 | 32 | 33 | 34 | 35 |
| 36 | 37 | 38 | 39 | 40 |
| 41 | 42 | 43 | 44 | 45 |
| 46 | 47 | 48 | 49 | 50 |
| End |
Remember, the General Knowledge Practice Test doesn’t reveal the correct answers until the test is over. The questions and answers are given in random order each time you retake the test. When you are finished testing, simply click on the “Get Results” button to see your test results. Clicking on the blue “List” button will reveal a list of all the questions you answered correctly and incorrectly. To take the test again, just refresh your browser window.
Press the start button to begin your free General Knowledge Practice Test. Good luck!
General Knowledge CDL Practice Test
Question 1 |
A | it is a federal law. |
B | you want to have a plan to communicate the risk. |
C | you want to avoid doing something all of a sudden. |
D | you want to have time to act before it turns into an emergency. |
Question 2 |
A | roll down your window so that the fresh air will help keep you awake. |
B | make sure you are driving slow enough so you can stop within the range of your headlights in case of an emergency. |
C | keep your high beams on at all times. |
D | drink coffee or other caffeine products to help keep you awake. |
Question 3 |
A | to avoid mixing hazmat with food. |
B | to warn others of hazardous materials. |
C | to combat terrorism. |
D | to make your vehicle look official. |
Question 4 |
A | overinflated tires |
B | both loose fuel connections and under inflated tires |
C | loose fuel connections |
D | underinflated tires |
Question 5 |
A | you are driving on hilly, rural roads. |
B | the road is wet, icy, or snow covered. |
C | road conditions are excellent. |
D | you are driving on the freeway. |
Question 6 |
A | the weight of the liquid. |
B | the legal weight limits. |
C | neither of these. |
D | both of these. |
Question 7 |
A | the wheel needs cleaning. |
B | the lug nut needs to be replaced. |
C | the lug nut is loose. |
D | the lug nut is cheap. |
Question 8 |
A | exempt from height restrictions. |
B | generally used when freight is carried part way by rail or ship. |
C | exempt from hazardous materials restrictions. |
D | exempt from weight limit restrictions. |
Question 9 |
A | before operating the vehicle. |
B | if any problems occurred the last the time the vehicle was operated. |
C | at least once a week. |
D | whenever you stop to refuel. |
Question 10 |
A | it will be raised slightly when the tractor is backed under it. |
B | the kingpin is about 1¼ inches above the fifth wheel. |
C | the end of the kingpin is even with the top of the fifth wheel. |
D | the end of the kingpin is at waist level. |
Question 11 |
A | Grease fire. |
B | None of these fires can be safely extinguished by water. |
C | Electrical fire. |
D | Gasoline fire. |
Question 12 |
A | seal is authentic. |
B | load is properly secured. |
C | seal is secure. |
D | placard numbers match the seal numbers. |
Question 13 |
A | three times |
B | half |
C | four times |
D | two times |
Question 14 |
A | none of these. |
B | three or more. |
C | five or more. |
D | seven or more. |
Question 15 |
A | Move forward slowly and push firmly on the brake pedal. |
B | Pump the brake pedal 3 times; push the pedal firmly 5 seconds; the pedal should not move. |
C | Push the brake pedal firmly 5 seconds; listen for leaks. |
D | Pump the brake pedal 5 times; push the pedal firmly 3 seconds; the pedal should not move. |
Question 16 |
A | to help ensure the vehicle will make it to your destination. |
B | because it is a requirement for all drivers. |
C | because law enforcement may inspect your vehicle on the road. |
D | to ensure safety for yourself, your passengers, and other drivers. |
Question 17 |
A | The drinker's brain is increasingly affected. |
B | All of these things happen. |
C | Muscle control and coordination are affected. |
D | Judgment and self-control are the first to be affected. |
Question 18 |
A | safely remove the radiator cap and add coolant while the engine is hot. |
B | use only water in the cooling system. |
C | use windshield washer fluid as coolant. |
D | check the coolant level of a hot engine. |
Question 19 |
A | Because it's good to know that information. |
B | Because some of the heaviest liquids don’t need any. |
C | Because some liquids expand more than others when they get warm. |
D | Because tank baffles are not always legal with outage. |
Question 20 |
A | law enforcement officers, detours |
B | truck stops, gas stations |
C | vehicles, traffic signs |
D | tunnels, overpasses |
Question 21 |
A | To see the blind spots you can't see. |
B | To prevent others from distracting you. |
C | To direct traffic away from you. |
D | To watch for steering errors. |
Question 22 |
A | four |
B | one |
C | three |
D | two |
Question 23 |
A | before starting down a hill and before entering a curve. |
B | before starting down a hill and before going up a hill. |
C | before starting down a hill and before entering a tunnel. |
D | before going up a hill and before entering a curve. |
Question 24 |
A | rubbing |
B | rust |
C | burning |
D | leaks |
Question 25 |
A | start the turn, then back up to re-position |
B | turn wide before you start the turn |
C | turn right and drive over the curb |
D | turn wide as you complete the turn |
Question 26 |
A | you will be parked for a short time. |
B | it is absolutely necessary. |
C | there is ice and snow, to prevent skidding. |
D | testing the trailer brakes after hooking up to a trailer. |
Question 27 |
A | One vehicle length for every 10,000 lb. of gross vehicle weight. |
B | The same amount of space you would on a dry road. |
C | The same amount of space you would at night. |
D | More space than is needed for ideal driving conditions. |
Question 28 |
A | It depends on what mood you are in at the time. |
B | Shorter stopping distance. |
C | The same amount of stopping distance. |
D | Greater stopping distance. |
Question 29 |
A | Play in the steering wheel of more than five degrees. |
B | Oil on the tie rod. |
C | Too many vertical stacks. |
D | Play in the steering wheel of more than ten degrees (two inches on a 20-inch steering wheel). |
Question 30 |
A | Perception distance, reaction distance, and braking distance. |
B | Perception distance, slowing distance, and braking distance. |
C | Observation distance, reaction distance, and slowing distance. |
D | Perception distance, response distance, and reaction distance. |
Question 31 |
A | one half inch |
B | three inches |
C | two inches |
D | one inch |
Question 32 |
A | driving too slow for road conditions. |
B | poorly adjusted brakes. |
C | bad tires. |
D | driving too fast for road conditions. |
Question 33 |
A | there is a slight vibration when you press down on the brake pedal. |
B | you have to push harder and harder to get the same stopping power on a downgrade. |
C | the brake pedal feels firm when you apply pressure. |
D | you release pressure on the brake pedal and speed increases. |
Question 34 |
A | All of these are considered a hazard. |
B | Pedestrians and bicyclists. |
C | A stopped transit bus. |
D | Road construction zones. |
Question 35 |
A | Shift the truck into neutral and coast down the hill to save gas. |
B | Use a lower gear than you would use to climb the hill. |
C | Use the same gear you would use to climb the hill. |
D | Use a higher gear than you would use to climb the hill. |
Question 36 |
A | rolled down windows |
B | sunglasses |
C | mirrors |
D | rear view cameras |
Question 37 |
A | Load cargo weight evenly over all the axles. |
B | Load cargo toward the rear of the truck for easier unloading. |
C | Load more weight over the drive axle for better traction. |
D | Load more cargo toward the front of the truck for a full load. |
Question 38 |
A | have better traction when stopping than full trucks |
B | need less space ahead than full trucks |
C | require greater stopping distance than full trucks |
D | have the same stopping distance as full trucks |
Question 39 |
A | A minimum of one. |
B | A minimum of four. |
C | A minimum of three. |
D | A minimum of two. |
Question 40 |
A | Downshift after you are in the curve. |
B | Nothing, because the posted speed limit for the offramp is usually 10 miles per hour below the safe speed limit for the offramp. |
C | Turn on your four-way flashers as you approach the offramp. |
D | Slow to a safe speed before the curve. |
Question 41 |
A | the load can shift. |
B | the load should not get wet. |
C | a dry bulk tank should only be filled halfway. |
D | the load can catch fire easily. |
Question 42 |
A | the trailer is being hauled at high speed. |
B | the trailer is out of brake adjustment. |
C | the trailer is empty or lightly loaded. |
D | the trailer is fully loaded or very heavy. |
Question 43 |
A | turn up the radio. |
B | roll down the windows. |
C | slap yourself in the face three times. |
D | stop to sleep. |
Question 44 |
A | Using turn signals, 4-way flashers, headlights, and the horn. |
B | Using hand signals. |
C | Using your CB radio or cell phone to inform others. |
D | Using a helper when backing up. |
Question 45 |
A | fishtailing. |
B | offtracking. |
C | slidetracking. |
D | sidetracking. |
Question 46 |
A | decreases when the service breaks are hot. |
B | is not affected by the condition of the service brakes. |
C | depends on the service brakes being in adjustment. |
D | increases when the service brakes are hot. |
Question 47 |
A | Keep your low beam lights on. |
B | Warn other drivers by using your left turn signal lights. |
C | Turn on your 4-way emergency flashers to warn other drivers. |
D | Put your warning devices out within 15 minutes. |
Question 48 |
A | poor-quality retreads, under-inflated tires |
B | dual tires that touch, hot road surfaces |
C | over-heated brakes, under-inflated tires |
D | under-inflated tires, dual tires that touch |
Question 49 |
A | check to make sure that the brakes are properly balanced. |
B | keep two hands firmly planted on the steering wheel at all times. |
C | downshift into the turn. |
D | keep the cargo as close to the ground as possible. |
Question 50 |
A | 5/32-inch in every major groove. |
B | 3/32-inch in every major groove. |
C | 2/32-inch in every major groove. |
D | 4/32-inch in every major groove. |
← | List | → |
| 1 | 2 | 3 | 4 | 5 |
| 6 | 7 | 8 | 9 | 10 |
| 11 | 12 | 13 | 14 | 15 |
| 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 |
| 26 | 27 | 28 | 29 | 30 |
| 31 | 32 | 33 | 34 | 35 |
| 36 | 37 | 38 | 39 | 40 |
| 41 | 42 | 43 | 44 | 45 |
| 46 | 47 | 48 | 49 | 50 |
| End |
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