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Louisiana CDL practice

Selected knowledge practice, not a complete licensing course or practical training.

Louisiana CDL Practice Test 1

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Question 1 of 20
  1. 1. A car passed your truck and may now be beside the trailer. Which habit helps you track changes like this?
  2. 2. An exit ramp has a tight curve. Why should a truck driver reduce speed before entering it?
  3. 3. Your loaded truck is entering an uphill stretch. Which expectation should guide your planning?
  4. 4. A driver is struggling to remain alert near the end of a route. Which factor should take priority over finishing on schedule?
  5. 5. A pallet is loose inside a truck even though it cannot fall onto the road. Why does it still need attention?
  6. 6. Traffic is changing lanes through a roadwork area. Which adjustment is appropriate for a truck driver?
  7. 7. Heavy rain reduces visibility and tire grip. Should the truck's normal dry-road following interval remain unchanged?
  8. 8. A truck displays a current periodic-inspection sticker. Does that remove the driver's need for a pre-trip safety check?
  9. 9. The service brakes seem to work, but the parking brake does not hold as intended. What is the appropriate response?
  10. 10. Wheel-bolt holes appear stretched out of round during inspection. What does that finding mean?
  11. 11. A driver notices that part of the truck's frame is sagging and a frame member is cracked. Which response fits the inspection guidance?
  12. 12. A service-brake check passes. What should the driver conclude about the vehicle's separate parking and emergency brake requirements?
  13. 13. The total truck weight is acceptable, but a tire would carry more than its permitted load. Is the tire requirement satisfied?
  14. 14. For a combination subject to the federal periodic-inspection requirement, does inspection of the tractor alone cover its separate trailer?
  15. 15. A web tiedown bears against a sharp crate edge that could cut it. What additional protection is needed?
  16. 16. A cylindrical article can roll across the deck despite being prevented from sliding lengthwise. What else is required?
  17. 17. Under the cited general rule, a securement system restrains a 6,000-pound ordinary article. What aggregate working load limit is required at minimum?
  18. 18. An ordinary 4-foot crate weighs 1,500 pounds and is not blocked forward. What is the general minimum tiedown count?
  19. 19. An ordinary 21-foot article is properly blocked against forward movement. Under the general count rule for that arrangement, how many tiedowns are required at minimum?
  20. 20. Bulk liquid carried in a structural tank is outside these article-securement rules. Does that statement establish that its transportation has no other safety requirements?
Review all 20 questions with answers

  1. A car passed your truck and may now be beside the trailer. Which habit helps you track changes like this?

    Correct answer: Check mirrors regularly while continuing to scan the road ahead.

    FMCSA recommends regular mirror checks, about every 8 to 10 seconds. Mirror checks complement forward observation; staring into one mirror creates another blind interval.

    Source: FMCSA Tips for Truck and Bus Drivers; 1. Check Your Blind Spots. Federal CMV guidance for covered operations, not Louisiana licensing procedures. ↗

  2. An exit ramp has a tight curve. Why should a truck driver reduce speed before entering it?

    Correct answer: Excessive entry speed increases the risk of a rollover.

    Curves and ramps demand a speed suitable for the vehicle, its load and the conditions. The ability to stay within a posted limit does not remove rollover risk.

    Source: FMCSA Tips for Truck and Bus Drivers; 2. Be Aware of Long Stopping Distances. Federal CMV guidance for covered operations, not Louisiana licensing procedures. ↗

  3. Your loaded truck is entering an uphill stretch. Which expectation should guide your planning?

    Correct answer: It may accelerate more slowly as it climbs.

    Large vehicles can accelerate slowly uphill. Plan around the vehicle's actual performance and surrounding traffic rather than assuming passenger-car acceleration.

    Source: FMCSA Tips for Truck and Bus Drivers; 5. Drive at a Safe Speed. Federal CMV guidance for covered operations, not Louisiana licensing procedures. ↗

  4. A driver is struggling to remain alert near the end of a route. Which factor should take priority over finishing on schedule?

    Correct answer: The driver's ability to operate safely without fatigue.

    A timetable does not restore alertness. Do not continue driving while fatigue makes safe operation doubtful; arrange a safe stop and appropriate rest.

    Source: FMCSA Tips for Truck and Bus Drivers; 6. Stay Focused and Avoid Distracted Driving. Federal CMV guidance for covered operations, not Louisiana licensing procedures. ↗

  5. A pallet is loose inside a truck even though it cannot fall onto the road. Why does it still need attention?

    Correct answer: A shift inside the vehicle can affect stability and control.

    Securement protects against more than cargo falling off. A load that shifts within a truck can destabilize it and contribute to loss of control.

    Source: FMCSA Tips for Truck and Bus Drivers; 8. Maintain Your Vehicle. Federal CMV guidance for covered operations, not Louisiana licensing procedures. ↗

  6. Traffic is changing lanes through a roadwork area. Which adjustment is appropriate for a truck driver?

    Correct answer: Reduce speed and allow extra following space.

    Work zones can involve abrupt stops, lane shifts, uneven pavement and people near traffic. More space and a lower speed provide additional response time.

    Source: FMCSA Tips for Truck and Bus Drivers; 10. Practice Work Zone Safety. Federal CMV guidance for covered operations, not Louisiana licensing procedures. ↗

  7. Heavy rain reduces visibility and tire grip. Should the truck's normal dry-road following interval remain unchanged?

    Correct answer: No; increase the interval to suit the poorer conditions.

    The cited FMCSA guidance calls for more following distance in adverse conditions. Reduced visibility and grip can increase the space needed to recognize a hazard and respond.

    Source: FMCSA CMV Driving Tips - Following Too Closely; TIP #2: Double Your Following Distance in Adverse Conditions. Federal CMV guidance for covered operations, not Louisiana licensing procedures. ↗

  8. A truck displays a current periodic-inspection sticker. Does that remove the driver's need for a pre-trip safety check?

    Correct answer: No; periodic inspection and pre-trip responsibility are separate.

    A periodic inspection documents a separate inspection program. The driver must still establish that the vehicle is safe for the trip; a defect can develop after the periodic inspection.

    Source: FMCSA Safety Planner, section 5.2.2 Vehicle Inspections; Pre-trip Inspection and Periodic Inspection. Federal CMV guidance for covered operations, not Louisiana licensing procedures. ↗

  9. The service brakes seem to work, but the parking brake does not hold as intended. What is the appropriate response?

    Correct answer: Resolve the parking-brake problem before operating the vehicle.

    The parking brake is a separate item on the pre-trip list. One functioning braking system does not establish that another required system is in good working order.

    Source: FMCSA Safety Planner, section 6.3.4 Equipment, Inspection, and Use; Parts and accessories: parking (hand) brake. Federal CMV guidance for covered operations, not Louisiana licensing procedures. ↗

  10. Wheel-bolt holes appear stretched out of round during inspection. What does that finding mean?

    Correct answer: The wheel has a defect that requires attention.

    Elongated stud or bolt holes are a specified wheel defect. Do not treat abnormal hole shape as a harmless feature or compensate by ignoring it.

    Source: FMCSA Safety Planner, section 5.1.15 Wheels; Stud or bolt holes: elongated holes. Federal CMV guidance for covered operations, not Louisiana licensing procedures. ↗

  11. A driver notices that part of the truck's frame is sagging and a frame member is cracked. Which response fits the inspection guidance?

    Correct answer: Report and resolve the unsafe frame condition before operation.

    FMCSA's frame guidance excludes cracked, loose, sagging or broken chassis components. Adding cargo or checking an unrelated component is not a repair.

    Source: FMCSA Safety Planner, section 5.1.6 Frames; Frame or chassis condition (393.201). Federal CMV guidance for covered operations, not Louisiana licensing procedures. ↗

  12. A service-brake check passes. What should the driver conclude about the vehicle's separate parking and emergency brake requirements?

    Correct answer: They still need to be satisfied; one check does not cover every system.

    FMCSA distinguishes service, parking and emergency brake requirements. Do not infer the condition of one required system solely from a different system's operation.

    Source: FMCSA Safety Planner, section 5.1.1 Brake Systems; Service, parking and emergency brake requirements. Federal CMV guidance for covered operations, not Louisiana licensing procedures. ↗

  13. The total truck weight is acceptable, but a tire would carry more than its permitted load. Is the tire requirement satisfied?

    Correct answer: No; the tire's own load restriction must also be met.

    Vehicle weight and tire loading are separate checks. A legal total does not establish that each tire is suitable for the load actually placed on it.

    Source: FMCSA Safety Planner, section 5.1.14 Tires; Load restrictions and inflation pressure (393.75). Federal CMV guidance for covered operations, not Louisiana licensing procedures. ↗

  14. For a combination subject to the federal periodic-inspection requirement, does inspection of the tractor alone cover its separate trailer?

    Correct answer: No; each segment of the combination needs the required inspection.

    The federal periodic-inspection guidance covers each segment of a combination vehicle, at least once every 12 months. Checking one unit does not establish the inspection status of the other.

    Source: FMCSA Safety Planner, section 5.2.2 Vehicle Inspections; Periodic Inspection (396.17, 396.21). Federal CMV guidance for covered operations, not Louisiana licensing procedures. ↗

  15. A web tiedown bears against a sharp crate edge that could cut it. What additional protection is needed?

    Correct answer: Suitable edge protection that resists cutting, abrasion and crushing.

    Where contact could abrade or cut a tiedown, appropriate edge protection is needed. Its material must withstand the loads and contact, not merely cover the edge visually.

    Source: 49 CFR 393.104 — Cargo securement devices and systems; 393.104(f)(4): edge protection. Federal CMV requirements for covered operations, not Louisiana licensing procedures. ↗

  16. A cylindrical article can roll across the deck despite being prevented from sliding lengthwise. What else is required?

    Correct answer: Chocks, a cradle or equivalent restraint against rolling.

    Preventing one type of movement is not enough if the article can roll. Suitable rolling restraints must themselves remain secure during transportation.

    Source: 49 CFR 393.106 — General cargo securement; 393.106(c)(1): rolling articles. Federal CMV requirements for covered operations, not Louisiana licensing procedures. ↗

  17. Under the cited general rule, a securement system restrains a 6,000-pound ordinary article. What aggregate working load limit is required at minimum?

    Correct answer: 3,000 pounds.

    The aggregate working load limit must be at least half the article's weight. Half of 6,000 pounds is 3,000 pounds; tiedown configuration and other requirements still matter.

    Source: 49 CFR 393.106 — General cargo securement; 393.106(d): aggregate working load limit. Federal CMV requirements for covered operations, not Louisiana licensing procedures. ↗

  18. An ordinary 4-foot crate weighs 1,500 pounds and is not blocked forward. What is the general minimum tiedown count?

    Correct answer: Two.

    The crate is within five feet but exceeds 1,100 pounds, so the general rule requires at least two tiedowns. The securement must also provide adequate strength and prevent movement.

    Source: 49 CFR 393.110 — Minimum tiedown counts; 393.110(b)(2)(i): short heavier article. Federal CMV requirements for covered operations, not Louisiana licensing procedures. ↗

  19. An ordinary 21-foot article is properly blocked against forward movement. Under the general count rule for that arrangement, how many tiedowns are required at minimum?

    Correct answer: Three.

    For a properly forward-blocked article, the general rule calls for at least one tiedown for each ten feet or fraction of ten feet. Twenty-one feet spans three such intervals.

    Source: 49 CFR 393.110 — Minimum tiedown counts; 393.110(c): forward-blocked article. Federal CMV requirements for covered operations, not Louisiana licensing procedures. ↗

  20. Bulk liquid carried in a structural tank is outside these article-securement rules. Does that statement establish that its transportation has no other safety requirements?

    Correct answer: No; that exclusion is limited to these article-securement provisions.

    The cited exception concerns shapeless bulk material in the appropriate structural containment. It does not erase other vehicle, tank, loading or hazardous-material requirements that may apply.

    Source: 49 CFR 393.106 — General cargo securement; 393.106(a): shapeless bulk in structural containment. Federal CMV requirements for covered operations, not Louisiana licensing procedures. ↗

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Home / Louisiana / CDL practice

Louisiana CDL practice

Start with 20 questions on commercial-vehicle safety. Each answer includes an explanation.

Selected practice, not a complete Louisiana CDL course or an official exam.

Topics and coverage

580 questions cover 60 federal commercial-vehicle questions, 40 air brakes, 40 combination vehicles, 40 passenger transport, 20 tank vehicles, 20 doubles/triples, 60 school-bus, 80 hazardous-materials, 40 road-conditions, 40 hours-of-service, 20 cargo-operations, 40 licensing, 40 inspection/practical-preparation and 40 driver-responsibility scenarios. The licensing questions cover selected requirements; further intrastate exceptions, remaining endorsement material and complete skills coverage are still needed; this is not a complete CDL course.

Focus on a basics topic

20 questions

Safe driving and space

20 questions

Vehicle inspection and defects

20 questions

Cargo and securement

Equipment, endorsements, licensing and skills

40 questions

Air brakes

2 tests, random topic practice and saved mistake review.

40 questions

Combination vehicles

2 tests, random topic practice and saved mistake review.

40 questions

Passenger transport

2 tests, random topic practice and saved mistake review.

20 questions

Tank vehicles

1 test, random topic practice and saved mistake review.

20 questions

Doubles and triples

1 test, random topic practice and saved mistake review.

60 questions

School bus safety

3 tests, random topic practice and saved mistake review.

80 questions

Hazardous materials

4 tests, random topic practice and saved mistake review.

40 questions

Road conditions and emergencies

2 tests, random topic practice and saved mistake review.

40 questions

Federal hours of service

2 tests, random topic practice and saved mistake review.

20 questions

Cargo inspections and load planning

1 test, random topic practice and saved mistake review.

40 questions

Licensing and learner permits

2 tests, random topic practice and saved mistake review.

40 questions

Inspection and practical skills

2 tests, random topic practice and saved mistake review.

40 questions

Driver responsibilities and disqualification

2 tests, random topic practice and saved mistake review.

Sources and coverage

The basics question set has 60 original scenarios: 20 safe-driving, 20 inspection and 20 cargo questions. The three numbered tests partition those records; topic tests and random attempts reuse the same questions. No official or competitor practice questions was extracted.

Sources checked September 22, 2026: FMCSA safety guidance and its Motor Carrier Safety Planner, with current 49 CFR 393.104, 393.106 and 393.110 used directly for cargo questions. These federal rules concern covered CMV operations, particularly interstate operations; they do not establish Louisiana licensing procedures or intrastate exceptions. Following-time examples are safety guidelines, not state statutory minimums.

This is not a complete general-knowledge course or an official exam simulation. Two separate question sets add 40 air-brake and 40 combination-vehicle questions from manual sections 5 and 6. Other question sets add 40 passenger, 20 tank, 20 doubles/triples, 60 school-bus and 80 hazardous-materials questions with manual sections 4, 7, 8 and 10, supplementary FMCSA passenger guidance and current PHMSA/eCFR hazardous-material sources. Three further question sets add 40 road-condition and emergency, 40 federal hours-of-service, and 20 cargo-inspection and load-planning scenarios. A further 40-question licensing question set covers selected Louisiana application requirements, federal classes, permits and ELDT. A separate 40-practice questions adds detailed inspection and practical-test preparation; it does not replace hands-on training. Another 40 questions address notification duties, disqualification and selected Louisiana administrative requirements. Remaining endorsement material, application exceptions and the full skills curriculum still need coverage. The official OMV-linked CDL manual has 180 physical pages and a July 2017 cover version; we do not call it a 2026 edition. Our basics scenarios are adapted from our own shared federal material, not copied manual test questions or artwork. Current requirements and practical training remain essential.

Cargo source note: an older FMCSA summary still describes an inboard-rub-rail routing clause that was removed in 2006. Our rub-rail question follows current 49 CFR 393.104 and does not treat outside routing alone as a violation. Adequate strength, secure attachment and required edge protection still matter.

OMV-linked CDL manual (July 2017 version)Official OMV manual catalog

basics random practice uses 25 questions and an editorial target of 20 correct. Those numbers are our learning settings, not verified official Louisiana exam specifications. Practice is untimed, with immediate explanations.

Read the 13 basics source pages