Brake failure — Louisiana Permit Test
Brake failure on the Louisiana permit test — 5 rules, each with the reason behind it and a question on it while it is fresh.
The rules
If your brakes fail, do not put your parking brake on suddenly, because it could make you lose control.
A sudden pull on the parking brake can lock the rear wheels and spin the car.
Do not put your parking brake on suddenly.
If your brakes fail, take your foot off the gas, steer as the car slows, and shift into a lower gear so the engine helps slow the car.
A lower gear lets the engine hold the car back when the brakes cannot.
Simply steer your vehicle as it slows and shift the car into a lower gear to let the engine help slow the car.
With failed brakes, shift into neutral and gradually apply the hand brake until the vehicle stops.
Pulling the hand brake slowly slows the car without locking the wheels.
Shift into neutral and gradually apply the hand brake until the vehicle stops.
If the hand brake has also failed, direct the car onto a soft shoulder or rub the wheel against a curb to help it slow down.
The drag of soft ground or a curb can bleed off speed when no brake works.
If that brake has also failed, direct the car onto a soft shoulder or rub the wheel against a curb which will help the car slow down.
Do not attempt to drive your vehicle without brakes, no matter how slowly; call for help.
A car that cannot stop is a danger to everyone near it, even at a crawl.
Do not attempt to drive your vehicle, no matter how slowly, without brakes!
On the test
Your brakes fail. What should you not do?
Yank on the parking brake. A sudden pull on the parking brake can lock the rear wheels and spin the car. Class D & E Driver's Guide, p.117: “Do not put your parking brake on suddenly.”
How this works
Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.
You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.
Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.
What it costs
- One payment, once — not a subscription. Nothing renews and there is nothing to cancel, for an exam you sit one time.
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- Paying opens the rest of the cards, unlimited full-length practice tests, and retests built from exactly the questions you got wrong.
- Every level up to Prepared — 3 tests passed in a row.
- Do the work, fail the real exam, and we refund you.
Where these come from
Every rule here is checked against Class D & E Driver's Guide, published by the Louisiana Department of Public Safety, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/LA.pdf (Class D & E Driver's Guide, DPSMV2052 (R08/25), Louisiana Office of Motor Vehicles, retrieved 2026-09-14; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/LA.pages.txt (the plain pdftotext fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/LA-exam.html (the OMV's Permits page, https://expresslane.la.gov/omv/drivers/personal-driver-s-licenses/permits/, archived 2026-10-04; the 40-question count)
- https://expresslane.la.gov/omv/resources/driver-manuals/
- https://expresslane.la.gov/omv/drivers/personal-driver-s-licenses/new-licenses/ (read 2026-10-04; "An 80% is the minimum passing score for the knowledge test.")