Alcohol and driving — New Hampshire Permit Test
Alcohol and driving on the New Hampshire permit test — 5 rules, each with the reason behind it and a question on it while it is fresh.
The rules
Alcohol and other impairing drugs are involved in approximately 40% of all traffic crashes in which someone is killed each year.
Two in five deaths on the road trace back to something the driver took, which is why this book returns to it so often.
Alcohol and other impairing drugs are involved in approximately 40% of all traffic crashes in which someone is killed each year.
A blood alcohol concentration as low as .02% can affect a driver’s ability to drive.
Impairment starts far below the legal limit, so a driver who is under it is not the same as a driver who is unaffected.
A Blood Alcohol Concentration (BAC) level as low as .02% can affect a driver’s ability to drive.
Each ounce of alcohol consumed takes about an hour to go through the body.
Time is the only thing that clears alcohol, and knowing the rate is how a driver works out when they are actually fit to drive.
Each ounce of alcohol consumed takes about an hour to go through the body.
After drinking there is nothing that will reduce the effects of alcohol except time.
Coffee wakes a drinker up without sobering them, which produces an alert driver who is still impaired.
After drinking there is nothing that will reduce the effects of alcohol except TIME.
Impairment starts with the first drink, and even one drink of alcohol can affect a person’s ability to operate a motor vehicle.
There is no free first drink. The question is how much a driver is affected, not whether they are.
Impairment starts with the first drink.
On the test
About what share of fatal traffic crashes involve alcohol or other impairing drugs?
About 40%. Two in five deaths on the road trace back to something the driver took, which is why this book returns to it so often. New Hampshire Driver's Manual, p.8: “Alcohol and other impairing drugs are involved in approximately 40% of all traffic crashes in which someone is killed each year.”
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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- Do the work, fail the real exam, and we refund you.
All New Hampshire permit topics
Where these come from
Every rule here is checked against New Hampshire Driver's Manual, published by the New Hampshire Division of Motor Vehicles, and against the state code itself. Last checked 2026-09-16.
- src/assets/drivers-manuals/NH.pdf (New Hampshire Driver's Manual, Rev. 11/25, New Hampshire Division of Motor Vehicles, retrieved 2026-09-14)
- src/assets/drivers-manuals/NH.pages.txt (plain pdftotext over that PDF; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SOURCES.json (sha256, folio offset 6, folioMarker, nonLawPages, signGalleryPages and the extraction flag, each with its basis)