What driver fitness rules are on the Iowa permit test?

Iowa's driver fitness questions come from its own statutes and the Iowa Department of Transportation handbook. QuizLane covers 2 Iowa-specific driver fitness items, drawn from 2 distinct source sections, alongside 10 questions on rules that apply in every state.

How many driver fitness questions are on the Iowa permit test?

Iowa Department of Transportation does not publish a per-topic breakdown. The test as a whole has 35 questions and you need 28 correct (80%) to pass, so driver fitness is worth studying alongside every other topic rather than in isolation.

Are these official Iowa DMV driver fitness questions?

No. These are original study questions written against Iowa law and the official handbook, each carrying the section it came from. They are not endorsed by Iowa Department of Transportation and are not copies of the real exam.

Do I need an account to practice Iowa driver fitness questions?

No. Practice starts immediately as a guest. An account is optional and only saves your attempt history across devices.

Iowa defines Operating While Intoxicated as having a BAC of:

0.08% or higher (or any amount of a controlled substance in your system)

IADriver fitness

Iowa driver fitness practice questions

2 questions below test Iowa’s own driver fitness law, each with the statute or Iowa Department of Transportation handbook section it came from, plus 10 more on driver fitness rules that apply in every state.

The Iowa permit knowledge test has 35 questions in total and needs 28 correct (80%) to pass.

Practice driver fitness All Iowa topics

Iowa law

2 questions on Iowa’s own driver fitness rules

These differ from the rules that hold nationally — they are the ones that catch out drivers who studied another state’s handbook.

1. In Iowa, an underage driver is considered to be operating while intoxicated with a BAC of:
- 0.02% or more
- B0.10% or more
- C0.08% or more only
- D0.05% or more
Answer: 0.02% or more. The Iowa Driver’s License Manual states an underage driver is considered to be operating while intoxicated with a BAC of .02 or more (with a longer revocation if BAC is .08 or more).
Source: Iowa Driver's License Manual — Drivers Under 21
2. Iowa defines Operating While Intoxicated as having a BAC of:
- AAny measurable alcohol only
- B0.05% or higher
- 0.08% or higher (or any amount of a controlled substance in your system)
- D0.10% or higher
Answer: 0.08% or higher (or any amount of a controlled substance in your system). The Iowa Driver’s License Manual defines Operating While Intoxicated as having a BAC of .08 or higher or operating with any amount of controlled substance in your system.
Source: Iowa Driver's License Manual — Operating While Intoxicated (OWI)

Sources for the Iowa items above

Applies everywhere

Driver fitness rules that hold in every state

A sample of the national driver fitness bank. All 10 are in the practice run, combined with the Iowa items above for 12 questions in total.

1. What is the only reliable remedy for driver fatigue?
- AOpening the windows
- BTurning up the radio
- CCoffee or an energy drink
- Sleep
Answer: Sleep. Caffeine, cold air, and music mask drowsiness briefly. Only real sleep restores alertness, so stop somewhere safe and rest.
Source: Official state driver handbook — Driver fitness — fatigue
2. Which of these is an early warning sign of drowsy driving?
- ANoticing signs sooner
- BChecking mirrors more often
- Drifting from your lane or missing an exit
- DGripping the wheel more firmly
Answer: Drifting from your lane or missing an exit. Lane drift, repeated yawning, heavy eyelids, and missed exits or signs all indicate that fatigue is already affecting your driving.
Source: Official state driver handbook — Driver fitness — fatigue
3. Long stretches of unchanging highway can produce highway hypnosis, which is best countered by:
- AIncreasing your speed
- BDriving with the windows closed
- CFixing your gaze on the centre line
- Shifting your eyes regularly and taking breaks
Answer: Shifting your eyes regularly and taking breaks. A drowsy, trance-like state develops when the eyes stop moving. Keep scanning mirrors and the road ahead, and stop to rest regularly.
Source: Official state driver handbook — Driver fitness — fatigue

Practice all 12 driver fitness questions

Driver fitness rules in other states

Driver fitness law is set state by state — compare how another state handles it.

IllinoisIL · 4 questions IndianaIN · 3 questions KansasKS · 3 questions MichiganMI · 4 questions MinnesotaMN · 3 questions MissouriMO · 4 questions NebraskaNE · 2 questions North DakotaND · 2 questions

Confirm current Iowa rules

Statutes and handbooks change. Iowa Department of Transportation is authoritative for Iowa driver fitness rules and for the permit test itself.

Visit Iowa Department of Transportation

Common questions

About Iowa driver fitness rules and this practice set.