Question Flash your brake lights or turn on your emergency flashers if you: Answers Need to warn other drivers of a collision ahead. Are temporarily parked in a traffic lane to make delivery. Are backing out of a parking space. Explanation If you can see a collision ahead, warn the drivers behind you by turning on your emergency flashers or by tapping your brake pedal quickly three or four times. Pass your DMV Written Test with flying colors Take me to the cheat sheet California This questions appears in the following tests: California Practice Test 7 California Practice Test 31