You are operating a machine that begins to make an unfamiliar noise. you should
speed up to finish the part you are working with
tell the co-worker beside you and keep working.
keep working and notify your supervisor at the first opportunity.
shut down the machine and notify your supervisor.

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.