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The CDL general knowledge test is required to be taken by all CDL applicants. The Montana 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 Montana 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 MT 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. When driving at night, you should:
use dark lenses if possible.
drive slowly enough to see obstacles with your headlights.
look directly at the lights of oncoming vehicles.
put your own high beams on if other drivers don't put their low beams on.
2. Total stopping distance equals:
Perception distance + reaction distance + braking distance
Reaction distance - following distance + braking distance
Perception distance + braking distance
Braking distance + viewing distance
3. When backing a truck you should:
look straight ahead.
always rely on your mirrors.
back and turn toward the right side.
get out and walk around the vehicle before you begin to back.
4. Hydroplaning:
can occur only if there is a lot of water on the road.
can occur at speeds as low as 10 mph, if there is a lot of water.
is less likely if tire pressure is low.
can occur at speeds as low as 30 mph.
5. Most heavy trucks with manual transmissions require ____ to change gears.
single clutching
double clutching
triple clutching
None of the above.
6. Loose engine belts will:
will make it easier to stop quickly.
should not be tightened.
not turn the water pump and/or fan properly, which will result in overheating.
improve fuel efficiency.
7. When approaching a double railroad track, you should:
remember that a train on one track may hide a train on the other track.
expect to hear a train when it's approaching.
remember that trains may be more frequent.
rely upon the presence of warning signals.
8. To avoid becoming a distracted driver you should:
plan your route before you begin driving.
clear the vehicle of any unnecessary objects.
avoid typing or reading a text message on a mobile device while driving.
All of the above.
9. Shaded parts of the road:
will remain icy and slippery after other areas have melted.
usually don't freeze.
usually are not slippery.
will melt before open areas.
10. Hydroplaning is more likely if:
tire pressure is low.
the road is wet.
tire tread is worn.
All of the above.
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MT CDL Knowledge Test

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