Truck side no zone — South Dakota Permit Test
Truck side no zone on the South Dakota permit test — 3 rules, each with the reason behind it and a question on it while it is fresh.
The rules
Trucks have a larger blind spot on their right side, starting behind the cab and extending up to the length of the truck.
A truck moving right into what looks like an empty lane crushes the car hidden along its side.
Trucks have a larger blind spot on their right side starting behind the cab and extending up to the length of the truck.
If you cannot see the truck driver's face in the side view mirror, the driver cannot see you.
A driver who cannot see you will change lanes right into you.
If you cannot see the driver’s face in the side view mirror, they cannot see you.
Avoid driving alongside a large vehicle for any longer than required.
If the truck has to swerve or change lanes while you sit beside it, there is nowhere for you to go.
Avoid driving alongside a large vehicle for any longer than required under any circumstances.
On the test
On which side does a truck have its larger blind spot?
The right side, behind the cab. A truck moving right into what looks like an empty lane crushes the car hidden along its side. South Dakota Driver License Manual, p.63: “Trucks have a larger blind spot on their right side starting behind the cab and extending up to the length of the truck.”
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
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All South Dakota permit topics
Where these come from
Every rule here is checked against South Dakota Driver License Manual, published by the South Dakota Department of Public Safety, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/SD.pdf (South Dakota Driver License Manual, Revised 11/2024, South Dakota Department of Public Safety, retrieved 2026-09-14 and re-checked 2026-10-04; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SD.pages.txt (pdftotext -layout, the fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SD-exam.html (South Dakota Department of Public Safety, South Dakota Driver License Testing Information, KB0043731, read 2026-10-04; states the 80% rate; sha256 pinned under examSource)
- https://www.sd.gov/dps?id=cs_kb_article_view&sysparm_article=KB0043733 (read 2026-10-04; links the manual)