Iowa Permit Test (Iowa DOT Knowledge Test) — All Questions
4 questions
The 'basic speed law' means you must:
- a.Always drive the posted maximum
- b.Never drive faster than is safe for current conditions✓
- 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.Increase your speed
- c.Slow down and avoid sudden steering or braking✓
- d.Follow closely behind another car
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.Slow down and use low-beam headlights✓
- b.Use high beams for more light
- c.Speed up to leave the fog
- d.Turn off all lights
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.Change lanes frequently
- c.Follow the car ahead closely
- d.Obey posted work-zone limits and merge early✓
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)