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