This illustration does not match the question
Engine
Electricity: Assuming the ladder diagram of figure "1" and the corresponding input/output dia...
Discussing this exam question.
I agree. How can such a question be posed and an acceptable answer be demanded when
1) There is no figure 1
2) There is no figure 2
3) There is no output A
4) There is no output B
?????
1) There is no figure 1
2) There is no figure 2
3) There is no output A
4) There is no output B
?????
In the drawings, what is happening is that SW-0 seems to be normally closed, SW-1 seems to be normally open. SW-0 is connected to IN 0, and SW-1 is connected to IN 1. If neither switch is actuated, the top rung is an AND function, so Lamp 0 is off. If SW-1 is actuated, then Lamp 0 will turn on. Lamp 0 is connected to OUT-0. So if OUT-0 is asserted (turned on), then Lamp-0 turns on. With the bottom rung, if SW-0 is not actuated, then Lamp 1 will turn on. Anyway, no question is posed regarding these figures, so it is hard to tell what the USCG is getting at besides confusing people.