← Washington State DOL Drivers Ed Knowledge Test Practice Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All Slow moving vehicles are required to display a Slow moving vehicle sign if they are travelling slower than: 25 MPH You must enter a roundabout at speeds of: 15-20 MPH Unless otherwise posted, in a school zone the speed limit is: 20 MPH Unless otherwise posted, the speed limit is ___ on state highways 60 MPH Unless otherwise posted, county road's speed limit is: 50 mph