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