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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. Use of drugs can lead to traffic accidents resulting in:
Property damage
All of the above.
2. You should use your four-way emergency flashers:
when parked at the side of the road.
when driving at night.
while crossing railroad tracks.
None of the above.
3. Drivers should not assume that the heights posted at bridges and overpasses are correct. Why?
Packed snow or repaving may have reduced the clearances since the heights were posted.
Some roads can cause a vehicle to tilt.
The bridge/overpass may have been rebuilt since the heights were originally posted.
The weight of a cargo van changes its height.
4. What is the most important hand signal you should agree on with a helper?
Turn right
Keep backing
Go forward
5. Using a helper when backing up is:
not recommended.
6. When you park your vehicle and turn off the engine:
apply the parking brake.
keep the vehicle in the lane.
move the gear shift to first gear, if possible.
activate your right turn signal.
7. The Gross Vehicle Weight Rating (GVWR) is:
the minimum weight that must be hauled by a vehicle, as specified by the manufacturer.
the value specified by the manufacturer as the loaded weight of a vehicle, including cargo and trailers.
the value specified by the manufacturer as the loaded weight of a combination vehicle.
the value specified by the manufacturer as the loaded weight of a single vehicle.
8. While driving at night, use __________ when it is safe and legal to do so.
interior lights
high beams
emergency flashers
low beams
9. Multi-speed rear axles and auxiliary transmissions are used:
to provide extra gears.
to reduce brake wear.
to make it easier to change gears.
reduce exhaust emissions.
10. To avoid becoming a distracted driver you should:
plan your route before you begin driving.
avoid typing or reading a text message on a mobile device while driving.
clear the vehicle of any unnecessary objects.
All of the above.
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IN CDL Practice Test

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