Iowa DMV Practice Test 2026

Not quiteCorrect answer: D — The road network you are entering has no way through

NO OUTLET covers a group of roads with no through route. DEAD END is the stronger version: that road itself simply stops.

The two are used interchangeably in conversation, but DEAD END means the pavement runs out shortly, which matters at night.

Not quiteCorrect answer: D — Does not give you the right to take the lane — you must abort the change

A signal announces an intention. It does not create right-of-way, and traffic already in the lane keeps it.

Signal-and-move is treated as a claim on the lane. It is a request, and it never replaces the shoulder check.

Not quiteCorrect answer: D — Considerably more distance to stop

Mass and air-brake lag together mean a loaded truck can need well over twice the stopping distance of a car.

Cutting in front of a truck and then braking removes the space its driver spent kilometres building.

Not quiteCorrect answer: D — Still turn left, but you must now yield to oncoming traffic

The end of the arrow ends the protection, not the permission. The circular green leaves the turn allowed but unprotected, and oncoming traffic has just been released.

The changeover feels like the tail end of your own phase. It is the opposite: the moment the arrow dies is the moment oncoming traffic starts moving toward the space you are about to cross.

Not quiteCorrect answer: C — Stop, pull over as safely as you can and turn around

This sign means you have already entered against traffic and did not see, or passed, the DO NOT ENTER sign. Stopping and turning around is the only safe response.

Continuing to "the next exit" is exactly wrong here — on a divided road the next exit may be miles away, into oncoming traffic.

Not quiteCorrect answer: A — Illegal without the required placard or plate, however briefly

Accessible spaces are reserved by permit, not by duration. There is no short-stay exception, and the fines are among the highest of any parking violation.

Hazard lights are widely believed to legalise a brief stop. They signal a hazard; they do not grant permission.

Not quiteCorrect answer: B — Match the speed of freeway traffic and merge into a gap

The acceleration lane exists to let you arrive at traffic speed. Merging slowly forces everyone behind to brake and is a common cause of freeway collisions.

Stopping at the end of an on-ramp leaves you with no run-up and traffic arriving at 65 mph behind you.

Not quiteCorrect answer: B — At the stop line, before any part of your vehicle crosses it

The octagon requires a full stop, and the stop line marks the point where that stop has to happen. Where there is no stop line you stop before the crosswalk, and where there is neither you stop before entering the intersection. Once stopped you may edge forward far enough to see.

Drivers stop where they can see rather than where the line is. Creeping past the line first is still a failure to stop, and it puts your bumper in the crosswalk.

Not quiteCorrect answer: B — A place to stop, rest and use facilities

Rest areas are signed in blue as a motorist service. Using one is the correct response to drowsiness — there is no substitute for stopping.

Coffee, open windows and loud music delay sleep by minutes at most. A rest area exists because pulling over is the only real fix.

Not quiteCorrect answer: B — The bus is about to stop — prepare to stop behind it

Amber is the warning phase, like a yellow traffic light. It is your cue to slow and prepare, not the last chance to get past.

Treating amber as "still allowed" is exactly the behaviour that puts a car alongside the bus when the doors open.

Not quiteCorrect answer: B — Both directions must share a single lane, alternating

Only one lane is open and traffic takes turns, usually under a flagger or pilot car. You may have to wait for oncoming traffic to clear.

Treating it as a normal merge and racing to be first is how head-on conflicts happen in work zones.

Not quiteCorrect answer: B — Find another route — the structure ahead will not clear your vehicle

The figure is the lowest clearance of the structure ahead. Anything taller strikes it, and the sign exists because that keeps happening.

Drivers assume the posted figure includes a safety margin and that the centre is always higher. Neither is a safe assumption.

Not quiteCorrect answer: D — Stop at your approach and proceed in the order vehicles arrived, as at an all-way stop

Flashing red has the meaning of a stop sign on whichever approach it faces. When every approach flashes red, every approach has a stop sign, which is an all-way stop.

Drivers assume the flash is a fault that gives the main road priority. The cross-street driver is making the same assumption from the other direction, and both enter together.

Not quiteCorrect answer: A — The action shown in the symbol is prohibited

Red means prohibition. A red ring and slash over a symbol forbids exactly the movement drawn underneath it.

Drivers sometimes read a slashed sign as a warning about that thing being present. It is an order not to do it.

Not quiteCorrect answer: C — You cannot assume the cross traffic stops at all, so you must give way to it before you go

The ALL WAY plaque is added only where every approach is stopped. Without it, the cross street may run freely at full speed, so stopping does not buy you a turn to go — it obliges you to wait for a gap you can safely use.

Treating every stop sign as a four-way stop and pulling out as soon as another driver stops. Only the plaque tells you the other approaches stop.

Not quiteCorrect answer: D — Stay put until it can manoeuvre around you, then move only if it is safe and legal

Do not enter the intersection against a red light. Emergency drivers expect to have to work around stopped traffic and cross traffic may be moving.

Panicking into the intersection to "get out of the way" puts a second collision in the ambulance's path.

Not quiteCorrect answer: D — Slow down and give the right-of-way to traffic and pedestrians ahead

A downward-pointing triangle always means YIELD. Slow down, be ready to stop, and let cross traffic and pedestrians go first. You only have to stop if traffic requires it.

Yield does not mean stop every time — but it does mean you must stop if there is any traffic or pedestrian with the right-of-way.

Not quiteCorrect answer: A — There is a hazard or a change in road conditions ahead

Yellow diamonds are general warning signs: a curve, a merge, a hill or another hazard is ahead. They advise you to slow down and prepare, but they do not by themselves carry a legal speed limit.

Orange diamonds — not yellow — mean a work zone. Same shape, different colour, different meaning.

Not quiteCorrect answer: A — The road changes direction here, so follow the curve and stay in your lane

Chevrons are placed in a series through a change of alignment so at least one is always in view. Together they show how sharp the bend is and where the road goes at night, when your headlights cannot reach around it.

Reading a chevron as an instruction to change lanes. It describes the alignment of the road, not a movement you are being told to make.

Not quiteCorrect answer: D — When you can see the whole vehicle you passed in your rear-view mirror

Seeing the entire vehicle in your interior mirror means you have the length to return without forcing them to brake.

Cutting back in early is what turns a completed pass into a side-swipe, usually with the passed driver braking hard.