Iowa Permit Test (Iowa DOT Knowledge Test) — All 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)