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The CDL general knowledge test is required to be taken by all CDL applicants. The Indiana CDL test consists of 50 questions. To pass, you must correctly answer at least 40 questions (80%). The general knowledge test covers the contents of the Indiana CDL Manual. All CDL applicants (Class A, B and C) must study the following sections: Driving Safely, Transporting Cargo Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Vehicle Inspection Test, Basic Control Skills Test, Road Test. In addition, the Class A CDL test will include questions based on the Combination Vehicles section. Take this CDL practice test now to prepare for the actual IN general knowledge test! To get your CDL, you must pass both the knowledge and skills tests. CDL knowledge tests include: General Knowledge, Passenger Transport, Air Brakes, Combination Vehicles, Hazardous Materials, Tanker Vehicles, Doubles/Triples, School Bus, Firefighter. Depending on what class of license (A, B or C) and endorsements you need, you must take one or more knowledge tests. A special endorsement is also required to drive certain types of vehicles. The following endorsements may be used with a Class A, B or C CDL: HazMat (H), Tank Vehicles (N), Tank Vehicles Transporting Hazardous Materials (X) and Passenger Transport (P). The School Bus endorsement (S) is only available for Class A or B CDL, and the Doubles/Triples endorsement (T) is only available for Class A driver's licenses.
1. _______ is the distance your vehicle travels, in ideal conditions, from the time you see a hazard until your brain recognizes it.
Perception distance
Braking distance
Reaction distance
Total stopping distance
2. If your vehicle is hydroplaning, you should:
release the accelerator and push in the clutch.
accelerate to get through the water as quickly as possible.
use the brakes to slow down.
None of the above.
3. The most important reason you inspect your vehicle is:
because Federal and state laws require that drivers inspect their vehicles.
to avoid insurance premium hikes.
4. When driving in very hot weather, you may have to:
reduce your speed to prevent overheating.
watch out for black ice.
increase your speed until the tires cool off.
decrease your following distance.
5. You should be especially alert for drunk drivers:
late at night.
in the morning.
around shopping areas.
in the early evening.
6. Which of the following statements about over-the-counter drugs is true?
They are not considered drugs.
They are perfectly safe and legal.
They can be used while on duty, as long as you drink coffee to stay awake.
They may affect safe driving ability.
7. After starting the engine, oil pressure should rise to a normal level:
within seconds.
within 2 minutes.
within 3 miles.
within 6 minutes.
8. To prevent your vehicle from rolling back when you start you should:
partly engage the clutch before you take your right foot off the brake.
put the transmission in Neutral.
release the parking brake, then apply enough engine power to keep from rolling back.
partly take your right foot off the brake before you engage the clutch.
9. Your driver license doesn't have the hazardous materials endorsement. You can drive a vehicle that carries hazardous materials if:
the vehicle does not require placards.
you are transporting hazardous materials for less than 50 miles.
one of your passengers has the hazardous materials endorsement.
All of the above.
10. Who is responsible for recognizing overloads and poorly balanced weight?
The shipper
The driver
The loader
The previous driver
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IN CDL Practice Test

Number of questions: 50
Correct answers to pass:40
Passing score:80%
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