Latest PDF of CDL: Commercial Drivers License

Commercial Drivers License Practice Test

CDL exam Format | Course Contents | Course Outline | exam Syllabus | exam Objectives

Classroom – Provides 40 hours of classroom training that will prepare the student to
pass the “Knowledge Test” required to obtain a Class A CDL instruction permit.
Range/Road – Provides 120 hours of practical experience and training relating to
performing and passing pre-trip inspection testing, basic controls skills testing and road
skills testing.
Home Study – Students will study the KY CDL Manual (provided) in order to pass the
Class A CDL knowledge test. In addition, part of the Delmar Tractor Trailer Truck Driver
Training book (provided) will be completed prior to course completion.

Upon successful completion of this class the student will be able to master the skills
necessary to obtain a Class A CDL. The student will also be able to understand and
discuss the importance of safety as it relates to the operation of a semi-tractor and
trailer in and around docks, shippers and consignees, in both city and/or over the road
driving. The student will also be able to perform the following procedures;

1. Drive and control a semi-tractor and trailer on local, city, county and interstate roads
2. Perform vehicle inspections
3. Shift gears
4. Understand speed and space management
5. Recognize road hazards, aggressive drivers/road rage
6. Identify and avoid distracted driving and why
7. Learn about night driving, driver fatigue, extreme driving conditions, hazard perception
8. Learn about railroad crossings and how to cross them properly
9. How to handle driving emergencies and accident procedures
10.Rules about alcohol and other drugs
11.Map reading and trip planning
12.DOT Regulations
13.Log Book and Hours of Service Regulations
14.Accident reports
15.Conduct pre and post-trip inspections, complete Driver Vehicle Inspection Reports (DVIR)
16.Perform maneuvers, straight line, off-set backing and parallel parking
17.Double clutch and shift a 10-speed transmission
18.Master turns, ramps, lane changes, space management and uphill and downhill shifting situations
19.Pass the Class A skills Test

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Commercial Drivers License 2025
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Question: 969
What is the key requirement for a commercial vehicle operator when transporting hazardous materials?
1. The driver must have a specific endorsement on their CDL
vehicle must be painted in bright colors for visibility driver must complete an online safety course
er: A
nation: Drivers transporting hazardous materials must have a specific endorsement on their C ing their training and knowledge regarding the safe handling and transportation of such mate
ion: 970
riving through a construction zone, you encounter a flagger signaling you to stop. What sh o?
your vehicle and wait for further instructions ore the flagger and continue driving
ed past the flagger to avoid delays
ly stop if other vehicles are also stopping er: A
nation: Stopping your vehicle and waiting for further instructions from the flagger is crucial for nd compliance with traffic regulations in construction zones.
ion: 971
ritical action should a driver take before making a left turn in a commercial vehicle to ensur
The vehicle must be equipped with a GPS tracking system
2. The
3. The Answ
Expla DL,
reflect rials.
Quest
While d ould
you d
1. Stop
2. Ign
3. Spe
4. On
Answ Expla
safety a
Quest
What c e
compliance with safety regulations related to the use of air brakes?
1. Ensure that the brake-door interlock is functioning properly
2. Check for pedestrians and cyclists, then make the turn
3. Engage the air brake system to slow down before turning
4. Signal the turn and accelerate through the intersection Answer: A
Explanation: Before making a turn, it is crucial to ensure that the brake-door interlock is functioning
properly. This prevents movement while doors are open and ensures safety during the maneuver.
Question: 972
During a pre-trip inspection, how should a driver assess the functionality of the vehicle�s lights, including headlights, taillights, and turn signals?
1. By visually inspecting them without any testing
2. By checking the bulb packaging for expiration dates
driving at night to test their effectiveness er: C
nation: Activating each light type and having a second person observe ensures that all lights on correctly and enhances safety on the road.
ion: 973
of the following describes the consequences of a commercial driver failing to adhere to the vice regulations?
driver will receive a financial bonus.
driver may face civil penalties and potential disqualification from operating a commercial v ere are no consequences if the driver is not involved in an accident.
driver can continue to operate as long as they notify their employer. er: B
nation: Failing to adhere to hours of service regulations can lead to civil penalties and potent lification from operating a commercial vehicle, regardless of accident involvement.
ion: 974
oes the presence of contaminants in the air supply affect the air brake system, particularly in
By activating each light type and ensuring they operate correctly while a second person observes
3. By
Answ Expla
functi
Quest
Which hours
of ser
1. The
2. The ehicle.
3. Th
4. The Answ
Expla ial
disqua
Quest
How d terms
of maintenance requirements?
1. It reduces the need for regular maintenance
2. It can lead to increased wear and tear, requiring more frequent maintenance
3. It has no impact on maintenance requirements
4. It enhances the overall efficiency of the system Answer: B
Explanation: The presence of contaminants in the air supply can lead to increased wear and tear on the
braking components, necessitating more frequent maintenance to ensure optimal performance and safety.
Question: 975
When assessing the condition of the vehicle�s lights, what specific aspect should a driver pay attention to regarding the functionality of the turn signals?
1. The brightness of the lights compared to the headlights
2. The speed of the flashing and whether both sides are operational
3. The color of the lenses only
er: B
nation: The speed of the flashing and whether both sides are operational are critical checks fo ensuring they function correctly to communicate intentions to other drivers.
ion: 976
re approaching a sharp curve on a mountainous road with a loaded truck. To navigate the cur what should you do?
celerate slightly to maintain momentum through the curve ply brakes heavily before entering the curve
the horn to alert other drivers
wnshift and slow down before the curve er: D
nation: Downshifting and slowing down before entering the curve gives you better control an the risk of tipping over due to centrifugal force.
ion: 977
hould a commercial driver do if they feel fatigued while driving, especially on long-haul tri
The angle at which they are mounted Answ
Expla r turn
signals,
Quest
You a ve
safely,
1. Ac
2. Ap
3. Use
4. Do
Answ
Expla d
reduces
Quest
What s ps?
1. Push through the fatigue to reach the destination faster
2. Find a safe place to stop and take a break
3. Use caffeinated drinks to stay awake
4. Turn on loud music to stay alert Answer: B
Explanation: It is crucial for drivers to find a safe place to stop and take a break if they feel fatigued, as driving while drowsy can significantly impair judgment and reaction times.
Question: 978
In the event of an air brake system failure, what is the recommended emergency procedure for a driver operating a combination vehicle to bring it to a safe stop?
1. Gradually apply the service brakes
2. Shift to a lower gear and coast to a stop
3. Activate the hazard lights and continue driving
4. Engage the emergency brakes and steer to a safe area Answer: D
nation: Engaging the emergency brakes and steering to a safe area is the recommended proce ent of air brake system failure. This action helps to slow the vehicle down safely and avoid ial hazards.
ion: 979
the loading of a tank vehicle, what is the most effective method to ensure that no hazardou escape into the atmosphere?
ling all connections and ensuring proper venting systems are in place ng open vents to allow airflow
ading the cargo quickly to minimize exposure time oring vapor management as it�s not a concern
er: A
nation: Sealing connections and ensuring proper venting are critical measures to prevent haza from escaping during loading, protecting both health and the environment.
ion: 980
ontext of the Commercial Driver License (CDL) testing process, what is the purpose of the
valuate the driver�s knowledge of traffic laws
Expla dure in
the ev potent
Quest
During s
vapors
1. Sea
2. Usi
3. Lo
4. Ign Answ
Expla rdous
vapors
Quest
In the c skills
test?
1. To e
2. To determine the driver�s physical fitness for driving
3. To assess the driver�s ability to operate a vehicle safely in real-world conditions
4. To measure the driver�s experience with various vehicle types Answer: C
Explanation: The skills test is designed to assess a driver�s ability to operate a vehicle safely in real- world conditions, ensuring they can handle the vehicle's controls and respond to various driving scenarios effectively.
Question: 981
What should a driver do if they notice a low oil pressure reading during an internal inspection?
1. Continue driving until the next scheduled service
2. Only check the oil level if the engine fails to start
3. Ignore it if the engine sounds normal
nation: A low oil pressure reading is a warning sign. The driver should check for leaks and a essary to prevent engine damage.
ion: 982
djusting the brake pushrod travel in a combination vehicle, what is the maximum allowable ce for the pushrod to ensure optimal brake performance?
nch nches nches nches
er: C
nation: The maximum allowable travel distance for the brake pushrod is typically 2 inches. ding this distance can indicate that the brakes need adjustment or maintenance, which is cruc
performance.
ion: 983
otice that your load is shifting during transit, what is the safest immediate course of action take?
rease your speed to stabilize the load
Check for leaks and top up the oil as necessary Answer: D
Expla dd oil
as nec
Quest
When a travel
distan
1. 1 i
2. 3 i
3. 2 i
4. 4 i
Answ Expla
Excee ial for
optimal
Quest
If you n you
should
1. Inc
2. Call for roadside assistance without stopping
3. Ignore it if the vehicle feels stable
4. Pull over to a safe area and adjust the load Answer: D
Explanation: Pulling over to a safe area to adjust the load is essential. Continuing to drive with a shifting load can lead to loss of control and potential accidents.
Question: 984
You�re driving a commercial vehicle during extreme heat, and the temperature gauge is rising. What proactive measures should you take to prevent overheating?
1. Increase your speed to Excellerate airflow
2. Check coolant levels and ensure fans are working
3. Turn off the air conditioning and drive slowly
4. Ignore the gauge if the engine sounds normal Answer: B
ining the engine�s temperature within safe limits.
ion: 985
enario where you encounter a sudden obstacle on the road, what defensive driving technique you prioritize to avoid a collision?
nk your horn aggressively
er around the obstacle, if safe to do so mediately apply the brakes hard celerate to pass the obstacle quickly
er: B
nation: The best defensive driving technique is to steer around the obstacle safely while main of the vehicle, rather than making sudden movements.
Explanation: Checking coolant levels and ensuring fans are working helps prevent overheating by mainta
Quest
In a sc should
1. Ho
2. Ste
3. Im
4. Ac
Answ
Expla taining
control

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Commercial Drivers License Practice Test

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