Iowa Permit Test (Iowa DOT Knowledge Test) — All Questions
24 questions
A red, eight-sided (octagonal) sign requires you to:
- a.Stop only if a vehicle is approaching
- b.Make a complete stop, then go when it is safe✓
- c.Merge into the next lane
- d.Slow down and yield to the right
A red octagon is always a STOP sign; you must come to a full stop at the stop line or crosswalk and proceed only when it is safe. (Iowa Driver's Manual, traffic signs)
A yellow diamond-shaped sign is used to:
- a.Mark a rest area
- b.Warn of a hazard or change in the road ahead✓
- c.Set the legal speed limit
- d.Show a mandatory turn
Yellow diamond signs are warning signs that alert you to hazards or changes in the road ahead so you can slow down and prepare. (Iowa Driver's Manual)
A flashing red traffic signal means:
- a.Turn left only
- b.The signal is out of service, so ignore it
- c.Speed up to clear the intersection
- d.Stop completely, then proceed when it is safe, as at a STOP sign✓
A flashing red light has the same meaning as a STOP sign: stop fully, then continue when the way is clear. (Iowa Driver's Manual, traffic signals)
A five-sided (pentagon) sign marks:
- a.A freeway exit
- b.A hospital zone
- c.A no-passing area
- d.A school zone or school crossing✓
The pentagon (five-sided) shape identifies school zones and school crossings; slow down and watch for children. (Iowa Driver's Manual)
A solid white line along the road usually means:
- a.Passing is required
- b.The lane is for turning only
- c.It marks the edge of the road or a lane where changes are discouraged✓
- d.You may cross freely at any time
A solid white line marks the road edge or separates same-direction lanes where lane changes are discouraged. (Iowa Driver's Manual, pavement markings)
At an intersection with no signs or signals where two cars arrive at about the same time, you should yield to:
- a.The larger vehicle
- b.The car that is going faster
- c.The vehicle on your right✓
- d.No one; go first
At an uncontrolled intersection, yield to the vehicle that reaches it first; if you arrive together, yield to the driver on your right. (Iowa Driver's Manual)
When you want to turn left across oncoming traffic, you must:
- a.Sound your horn and proceed
- b.Yield to oncoming vehicles and pedestrians before turning✓
- c.Turn quickly before oncoming cars arrive
- d.Expect oncoming traffic to stop for you
A left-turning driver must yield the right-of-way to oncoming traffic and to pedestrians in the crosswalk. (Iowa Driver's Manual, right-of-way)
When an emergency vehicle approaches with flashing lights and a siren, you should:
- a.Stop where you are in the lane
- b.Continue at the same speed
- c.Pull to the right edge of the road and stop until it passes✓
- d.Speed up to get out of the area
Pull over to the right, stop, and stay until the emergency vehicle has passed. (Iowa Driver's Manual)
At a four-way stop, the right-of-way goes to:
- a.The vehicle that stopped first✓
- b.The vehicle turning left
- c.The vehicle on the left
- d.The vehicle that honks first
At a four-way stop, the first vehicle to stop goes first; if two stop together, the one on the right goes first. (Iowa Driver's Manual)
Iowa's Move Over law requires that, when you approach a stopped emergency, police, or tow vehicle displaying flashing lights, you:
- a.Stop in your lane until it leaves
- b.Sound your horn to warn the workers
- c.Keep your speed and hold your lane
- d.Move over a lane if safe, or slow down when you cannot✓
Iowa's Move Over law requires drivers to change lanes away from a stopped emergency or service vehicle when safe, or slow down if moving over is not possible. (Iowa Driver's Manual, Move Over law)
When following another vehicle in good conditions, a safe following distance is at least:
- a.As close as possible to save fuel
- b.One second
- c.Half a car length
- d.Three to four seconds✓
Use a three-to-four-second following gap in good conditions, and more when the road is wet, icy, or visibility is poor. (Iowa Driver's Manual, following distance)
When sharing the road with a motorcycle, you should:
- a.Give it a full lane width and extra following room✓
- b.Share the lane beside it
- c.Follow more closely because it is small
- d.Pass closely to move ahead quickly
Motorcycles are entitled to a full lane; never share it, and allow extra following distance because bikes can stop quickly. (Iowa Driver's Manual)
Large trucks have big blind spots ('No-Zones'). To stay safe you should:
- a.Assume the driver can always see you
- b.Drive directly behind the trailer
- c.Avoid lingering alongside and pass promptly on the left✓
- d.Stay beside the truck's rear wheels
Trucks have wide blind spots on all sides; if you cannot see the driver's mirrors, they cannot see you, so do not linger beside them and pass on the left. (Iowa Driver's Manual, sharing the road with trucks)
When you meet a stopped school bus with its red lights flashing on an undivided two-way road, you must:
- a.Pass slowly on the left
- b.Stop in both directions until the lights stop flashing✓
- c.Sound your horn and pass
- d.Continue if no children are visible
On an undivided road, traffic in both directions must stop for a school bus with flashing red lights and remain stopped until the lights go off. (Iowa Driver's Manual, school buses)
The 'basic speed law' means you must:
- a.Never drive faster than is safe for current conditions✓
- b.Always drive the posted maximum
- c.Match the speed of the fastest car
- d.Drive at least 10 mph under the limit
The basic speed law requires you to drive no faster than is reasonable and prudent for traffic, weather, and road conditions, even below the posted limit. (Iowa Driver's Manual, speed)
On a wet road, to reduce the chance of hydroplaning you should:
- a.Brake hard often
- b.Follow closely behind another car
- c.Increase your speed
- d.Slow down and avoid sudden steering or braking✓
Reduce speed on wet roads; hydroplaning happens when tires ride on a film of water, so avoid hard braking and sudden steering and ease off the gas if it occurs. (Iowa Driver's Manual, adverse conditions)
In fog, the safest choice is to:
- a.Turn off all lights
- b.Use high beams for more light
- c.Speed up to leave the fog
- d.Slow down and use low-beam headlights✓
In fog, slow down and use low beams; high beams reflect off the fog and reduce visibility further. (Iowa Driver's Manual)
When driving through a work zone you should:
- a.Keep your normal speed
- b.Follow the car ahead closely
- c.Obey posted work-zone limits and merge early✓
- d.Change lanes frequently
Slow to the posted work-zone speed, merge early, and watch for workers and equipment; fines are often higher in work zones. (Iowa Driver's Manual, work zones)
In Iowa, the minimum age to get an instruction permit is:
- a.15
- b.18
- c.14✓
- d.16
Iowa issues an instruction permit beginning at age 14. (Iowa Driver's Manual, GDL)
An Iowa intermediate license holder generally may not drive between:
- a.12:30 a.m. and 5 a.m.✓
- b.11 p.m. and 5 a.m.
- c.midnight and 6 a.m.
- d.10 p.m. and 4 a.m.
An Iowa intermediate driver may not drive between 12:30 a.m. and 5 a.m. unless accompanied by a qualifying licensed adult or driving to/from work or a school event. (Iowa Driver's Manual, GDL)
During the first six months of an Iowa intermediate license, the driver may carry no more than:
- a.Four passengers
- b.Two adult passengers
- c.One unrelated minor passenger, unless supervised by a licensed adult 25+✓
- d.No passengers at all, ever
For the first six months of an Iowa intermediate license, the driver may carry only one unrelated passenger under 18 unless a parent, guardian, or licensed driver 25 or older is supervising. (Iowa Driver's Manual, GDL)
For an Iowa driver under 21, it is illegal to drive with a BAC of:
- a.0.05 or higher
- b.0.08 or higher
- c.0.10 or higher
- d.0.02 or higher (zero-tolerance)✓
Iowa applies a 0.02 zero-tolerance BAC limit to drivers under 21; the adult limit is 0.08. (Iowa Driver's Manual, operating while intoxicated)
An Iowa intermediate license holder may drive to and from school on an otherwise restricted schedule only if:
- a.They carry the required documentation and follow its terms✓
- b.They have no passengers ever
- c.They drive faster than posted
- d.They avoid all highways
Iowa lets an intermediate driver drive unsupervised to and from school-related activities under specific documented conditions (such as a school authorization); otherwise the nighttime and supervision rules apply. (Iowa Driver's Manual, GDL)
Under Iowa's implied-consent law, refusing a chemical test after a lawful DUI arrest results in:
- a.A lower fine
- b.Revocation or suspension of your driving privilege✓
- c.No penalty
- d.A warning only
Driving in Iowa means you consent to chemical testing when lawfully requested; refusal results in revocation of your driving privileges. (Iowa Driver's Manual, implied consent)