Alcohol servings and sobering — Rhode Island Permit Test
Alcohol servings and sobering on the Rhode Island permit test — 5 rules, each with the reason behind it and a question on it while it is fresh.
The rules
A 12-ounce beer, a 4-to-5-ounce glass of wine and a 1 to 1 1/2 ounce shot of liquor hold about the same amount of alcohol.
A driver who switches from beer to wine thinking it is weaker drinks just as much alcohol.
A 12-ounce container of beer, a 4-to-5-ounce glass of wine and a 1 to 1 1/2 ounce shot of hard liquor have about the same amount of alcohol per serving.
Drinking on an empty stomach affects the body faster than drinking after eating.
A driver who skips dinner and has two drinks is hit harder and sooner than he expects.
For example, drinking on an empty stomach will affect the body faster than drinking after eating.
Alcohol's effects are greater when you are taking medicine or are tired.
A tired driver after a long shift can be badly impaired by one drink.
Alcohol’s effects are greater when you are taking medicine or are tired.
Only time reduces the effects of alcohol; coffee, food, fresh air or exercise may wake a drunk person up but will not sober them up.
A driver who downs a coffee and heads out is still just as drunk as before.
After drinking, there is nothing that will reduce the effects of alcohol except time.
The body gets rid of alcohol by breathing, perspiring and oxidation, which is done by the liver.
The liver works at its own pace, so no trick speeds up getting sober.
The three methods by which the body eliminates alcohol: Breathing, Perspiring, and Oxidation (removed by the liver).
On the test
About how big a glass of wine holds the same alcohol as a 12-ounce beer?
4 to 5 ounces. A driver who switches from beer to wine thinking it is weaker drinks just as much alcohol. Rhode Island Driver’s Manual, p.60: “A 12-ounce container of beer, a 4-to-5-ounce glass of wine and a 1 to 1 1/2 ounce shot of hard liquor have about the same amount of alcohol per serving.”
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.
All Rhode Island permit topics
Where these come from
Every rule here is checked against Rhode Island Driver’s Manual, published by the Rhode Island Division of Motor Vehicles, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/RI.pdf (Rhode Island Driver’s Manual, April 2024, Rhode Island Division of Motor Vehicles, retrieved 2026-09-14 and re-checked 2026-10-04; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/RI.pages.txt (pdftotext -layout, the fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/RI-exam.html (Community College of Rhode Island, Rhode Island Driver Education & Traffic Safety, read 2026-10-04; states the 70% pass mark of the DMV Knowledge Test it administers; sha256 pinned under examSource)
- https://dmv.ri.gov/licenses-permits-ids/permits-tests/operator-manuals (read 2026-10-04; links the manual)