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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. To avoid distractions while driving, you should:
try to engage in complex conversations with the other occupants.
use your phone only when there is no traffic around you.
smoke, eat, and drink only when the road is straight.
adjust vehicle controls and mirrors prior to driving.
2. Drivers should adjust their mirrors:
after driving.
while driving.
before driving.
None of the above.
3. Road surfaces where water collects can create conditions that cause a vehicle to hydroplane. Which of the following is an indication of standing water?
Clear reflections
Tire splashes
Raindrops on the road
All of the above.
4. When using your turn signals, you should:
signal only if vehicles are behind you.
turn the signal off before you turn.
signal well before you turn.
signal only if vehicles are in front of you.
5. With a dual air brake system:
each system shares the same lines and hoses.
one system is the main braking system while the other is a back-up system.
each system shares air tanks.
each system has its own air tanks, hoses and lines.
6. Black ice:
is thick enough that it makes the road look dry.
is a thin layer that is clear enough that you can see the road underneath it.
is thick enough that it makes the road look wet.
None of the above.
7. You are driving a 30-foot vehicle at 35 mph. You should allow at least ______ of following distance between your vehicle and the vehicle in front of you.
2 seconds
6 seconds
3 seconds
4 seconds
8. To warn drivers behind you that you will be slowing down, you should:
turn on the right and left turn signals at the same time.
turn on the 4-way emergency flashers.
tap your brake pedal a few times to flash your brake lights.
turn on the parking, clearance and side-marker lights.
9. The tire load for each tire is stated:
on the tread of the tire.
on the side of the tire.
on the vehicle's operator manual.
on the inside of the tire.
10. Road rage is defined as:
unnecessarily honking your horn.
driving with the intent of doing harm to others.
operating a motor vehicle in a selfish, pushy manner.
driving over the speed limit.
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IN CDL Knowledge Test

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