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