Louisiana Permit Practice Test 4
A fourth full-length Louisiana practice test: 30 more questions with zero repeats from Tests 1–3 — including extra Louisiana-specific rules. The real OMV Knowledge test has 40 questions, and you need 32 correct (80%) to pass.
Tap an answer. The explanation opens so you can learn it, then go on. Keyboard: A–D or 1–4 to answer, then Enter or Space.
Question 1 of 30
1. Your 20-year-old cousin is the designated driver tonight in Louisiana. To obey the zero-tolerance law, they must keep their BAC below what threshold?
Show answer & explanation
Correct answer: A. In Louisiana, drivers under 21 violate the zero-tolerance law once their BAC reaches 0.02%. A true designated driver drinks nothing at all; that is the whole job, and it keeps every passenger legally and physically safe.
2. What first responsible-driver step does NHTSA list if you plan to drink?
Show answer & explanation
Correct answer: A. Official NHTSA drunk-driving guidance says Plan your safe ride home before you start the party, choose a non-drinking friend as a designated driver. If you drink, do not drive for any reason.
3. A pedestrian is crossing your half of the street in a crosswalk at an intersection without signals. What must you do?
Show answer & explanation
Correct answer: A. Drivers must yield to pedestrians in a crosswalk, and crosswalks legally exist at intersections even when no lines are painted. People on foot have no protection in a collision, so treat every corner as a possible crosswalk.
4. Setting cruise control on a rural Louisiana interstate posted at the state maximum, you should set it no higher than which speed?
Show answer & explanation
Correct answer: B. The state maximum in Louisiana is 75 mph, so cruise control should not be set above it where that limit is posted. Think of the posted limit as a ceiling for ideal conditions, not a required speed.
5. Only one road sign is shaped like a sideways pennant, a triangle with its point aimed to the right. Which sign is it?
Show answer & explanation
Correct answer: A. The sideways yellow pennant is used for one message only: NO PASSING ZONE. It stands on the left side of the road where passing begins to be unsafe. One shape, one meaning makes it instantly recognizable.
6. In Louisiana, what is the youngest age at which you can apply for a learner's permit?
Show answer & explanation
Correct answer: B. Louisiana issues learner's permits starting at age 15. The permit opens the first stage of graduated licensing, where you build skills with a supervising adult before earning fuller privileges. Know your state's number; it varies nationwide.
7. A wide white bar is painted across your lane just before an intersection with a stop sign. Where must you stop?
Show answer & explanation
Correct answer: D. A stop line marks the exact place to stop: bring your vehicle to a halt before the bar, not on or past it. It keeps you clear of crosswalks and cross traffic. The bar is the boundary.
8. How close to a fire hydrant or a railroad crossing may you park in Louisiana?
Show answer & explanation
Correct answer: A. Louisiana groups the two distances on one line: within 15 feet of a fire hydrant or within 50 feet of a railroad crossing is illegal, plus 20 feet of a crosswalk at an intersection. Learn 15 / 20 / 50 as a set.
9. A parent in Louisiana wants to start permit practice as soon as the law allows. The earliest learner's-permit age is:
Show answer & explanation
Correct answer: C. Louisiana opens the learner's-permit door at 15. Starting then, with a supervising adult, is how GDL is supposed to work. Younger than that, the answer is still wait.
10. You are towing a small trailer on a highway posted 70 mph. What should you assume about a safe speed?
Show answer & explanation
Correct answer: B. Added weight and sway stretch your stopping distance, and some states post a lower tow limit. Even when the big number is legal, the safe number is often lower. If it sways, you are already too fast.
11. Louisiana enforces 'zero tolerance' for underage drinking and driving. In practice, a driver under 21 violates this law at what BAC?
Show answer & explanation
Correct answer: A. Zero tolerance in Louisiana means the under-21 line sits at 0.02%, so even one drink can end in a suspended license. The memory hook is simple: under 21 means zero drinks before you drive.
12. A person with a white cane is about to cross the street ahead of you. What must you do?
Show answer & explanation
Correct answer: A. A white cane or guide dog marks a pedestrian who is blind, and that person has the right-of-way every time. Stop if needed and do not honk, which can confuse them. White cane means your brakes, not your horn.
13. Small green signs with numbers appear every mile along the edge of the highway. What are these mile markers mainly used for?
Show answer & explanation
Correct answer: C. Mile markers count the distance across a route, letting you track your progress, judge how far your exit is, and give an exact location when you call for help. Note the nearest marker whenever trouble starts.
14. A traffic light turns steady yellow as you approach the intersection. What does this signal tell you?
Show answer & explanation
Correct answer: A. A steady yellow light warns that the signal is about to turn red. Stop if you can do it safely; if you are too close to stop smoothly, continue through with caution. Yellow means prepare, not race.
15. You park facing downhill on a street with a curb. Where should your front wheels point?
Show answer & explanation
Correct answer: C. When parking downhill with a curb, turn your front wheels toward the curb; if the car rolls, the tire wedges against the curb instead of drifting into traffic. Think downhill, dive toward the curb, and set the brake.
16. You are passing a slow truck on a Louisiana highway posted at the state's maximum limit. Even while passing, your legal ceiling stays at which speed?
Show answer & explanation
Correct answer: B. Passing grants zero extra speed allowance; in Louisiana the ceiling on those top-posted highways stays 75 mph. If you cannot complete the pass within the limit, wait for a better gap. The limit binds every maneuver.
17. A 30-year-old driver in Louisiana takes a chemical test after a crash. Prosecutors can prove DUI from the test result alone once the BAC is at least which value?
Show answer & explanation
Correct answer: D. A test showing 0.08% or higher proves per-se DUI in Louisiana without any other evidence of impairment. Lawmakers chose that threshold because crash risk climbs sharply near it, though alcohol degrades driving skills at lower levels too.
18. What does NHTSA say is the only true way to protect yourself against drowsy driving?
Show answer & explanation
Correct answer: A. Official NHTSA drowsy-driving guidance says Getting adequate sleep on a daily basis is the only true way to protect yourself against the risks of driving when you’re drowsy. Coffee and energy drinks last only a short time.
19. To qualify for a Louisiana learner's permit at age 15, how much driver education must you complete?
Show answer & explanation
Correct answer: C. Louisiana's graduated program requires teens to finish a 38-hour driver education course: 30 classroom hours plus 8 hours behind the wheel. The classroom builds rules knowledge before road practice begins. Remember 30 + 8 = the 38-hour course.
20. You approach an intersection with no signs or signals, and another vehicle approaches from a cross street at about the same time. Who should yield?
Show answer & explanation
Correct answer: A. At an uncontrolled intersection, slow down and yield to any vehicle that reaches it at about the same time from your right. Without signs, this default rule sorts out conflicts. Same tiebreaker as a four-way stop: right goes first.
21. What driving does NHTSA say a learner’s permit allows?
Show answer & explanation
Correct answer: A. Official NHTSA GDL guidance says A learner’s permit allows driving only while supervised by a fully licensed driver. An intermediate license allows unsupervised driving under certain restrictions. The leftover solo-practice claim is not on that page.
22. What first winter-driving step does NHTSA list on a slick surface?
Show answer & explanation
Correct answer: A. Official NHTSA winter-driving guidance says Slow down. It’s harder to control or stop your vehicle on a slick or snow-covered surface. The leftover hard-brake-on-bridge sentence is not on that page; this nearby official slick-surface rule is.
23. A white rectangular sign reads WRONG WAY. You have just entered a ramp. What is the safest first move?
Show answer & explanation
Correct answer: C. WRONG WAY means you are driving toward oncoming traffic. Stop without blocking others if you can, then leave the roadway the way you came or wait for help. Continuing forward is how head-on crashes start.
24. Which sign shape and color combination marks an interstate route?
Show answer & explanation
Correct answer: D. Interstate routes are marked by a shield split into a red band on top and a blue field below, with white numbers. Spotting the shield quickly helps you follow or avoid a freeway. Shield equals interstate.
25. A Louisiana fire truck races past you toward an emergency with sirens on. How closely may you follow it?
Show answer & explanation
Correct answer: D. Louisiana law forbids following an emergency vehicle answering a call closer than 500 feet, and you may not park within the block where it stops. Crews need room to work. Hook: give responders five hundred feet of breathing space.
26. A school-zone sign is posted 25 mph, and children are on the sidewalk. The next block is posted 35. When may you return to 35?
Show answer & explanation
Correct answer: B. School-zone speeds apply through the marked zone while children are present or the lights flash, depending on the sign. Do not jump back to the higher limit at the building line. Wait for the zone to end.
27. You are approaching an intersection and the traffic light turns steady red. What must you do?
Show answer & explanation
Correct answer: C. A steady red light requires a full stop before the stop line or crosswalk, or before entering the intersection if there is no line. Stopping at the line protects people crossing. Remember: red means stop, every time.
28. BAC measures the percentage of alcohol in a person's blood. For drivers 21 and older in Louisiana, what BAC puts them at or over the legal limit?
Show answer & explanation
Correct answer: C. BAC stands for blood alcohol concentration. In Louisiana, adult drivers reach the illegal level at 0.08%. Remember the rule as a hard line: at 0.08% you are over, and skills like reaction time fade even sooner.
29. Rain forces you to run your windshield wipers on a Louisiana highway. What does state law require?
Show answer & explanation
Correct answer: B. Louisiana law says that whenever conditions require your windshield wipers, your low-beam headlights must be on. Lights make you visible to others through rain and spray. Hook: wipers on, lights on — the two switches travel together.
30. What does official NHTSA Move Over guidance tell you to do when flashing lights are stopped on the shoulder?
Show answer & explanation
Correct answer: A. Official NHTSA Move Over guidance says All states require drivers to move over and slow down for emergency vehicles with flashing lights. Drivers approaching the vehicle should change into a lane not immediately adjacent to the vehicle, or slow down to a reasonable speed if you’re unable to safely make a lane change.
Enter or Space also advances.