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