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