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