The real Washington 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 6
signals-markings
What should you do when a traffic signal is not working?
- Treat the intersection like a four way stop and yield to traffic on your right
- Continue through because the signal gives no instruction
- Wait for a police officer before moving under any circumstance
- Use the intersection as though you have a green light
Answer: Treat the intersection like a four way stop and yield to traffic on your right. A dark or malfunctioning signal does not give any driver priority. Washington tells you to make a complete stop, then yield to traffic approaching from your right and proceed cautiously when it is safe. The green light choice would turn a missing control into permission to enter, which is exactly the risk this rule prevents. Scan every approach, including bicycles and pedestrians, before moving. The key cue is four way stop behavior: stop first, then resolve right of way rather than guessing what the signal intended.