USCG Exam PracticeLight List, ranges, and light characteristics
A light is charted 'Al WR'. What does this characteristic indicate?
- A. A white light with a red sector covering a danger area
- ✓ A light that alternates between showing white and redCorrect
- C. A flashing light that shows white then red in each group
- D. An isophase light with equal periods of white and red
Why B is correct
The Alternating (Al) characteristic describes a light that shows different colors alternately. 'Al WR' indicates the light alternates between white and red. (Light List — Al)