What are the colors of the service and emergency air lines?
The service line is yellow, and the emergency line is red.
The service line is red, and the emergency line is blue.
The service line is blue, and the emergency line is red.
The service line is blue, and the emergency line is green.
Create a totally FREE account to save your progress and scores.
Exam Simulator
Welcome back
Let's continue studying where you left off.