The real Iowa knowledge test is the DMV exam used for a learner permit. This page contains one fixed 20 question slice of the full free 180 question bank, with an explanation after each answer.
Sample question from test 1
speed
When no sign changes the rule, what is Iowa's general speed limit in a residential district?
- 20 mph
- 25 mph
- 45 mph
- 50 mph
Answer: 25 mph. A residential district has a general unposted limit of 25 mph, and a school district uses that same figure. The 20 mph option belongs to a business district, while 45 mph describes a suburban district and 50 mph applies to an unsurfaced secondary road under stated conditions. Treat the listed number as a ceiling, not a target: the manual says a lower limit may be set, and weather or road conditions can require less speed. A useful cue is to pair neighborhood streets with 25 before checking for a posted sign.