What colour flashing lights does a pilot vehicle have?

Possible answers:

• A. Red
• B. Red and blue
• C. Yellow
• D. Yellow, or yellow and purple

Correct answer:

• The correct answer is D

  The first pilot vehicle has yellow and purple lights and the second one has yellow lights. Maintenance vehicles have flashing yellow lights, police vehicles have red and blue lights, and fire engines and ambulances have red lights.