Air lines on a combination vehicle are often colored to keep them from getting mixed up. The emergency line is ___; the service line is ___.
a) Back; yellow
b)Blue; red
c) Red; blue
Answer: c) Red; blue
a) Back; yellow
b)Blue; red
c) Red; blue
Answer: c) Red; blue
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.