Rung 2 will be True whenever:
A)the pressure switch is closed.
B)the pushbutton is closed.
C)the selector switch is closed and rung 1 is True.
D)either a or c.

Question

Rung 2 will be True whenever: 
A)the pressure switch is closed. 
B)the pushbutton is closed. 
C)the selector switch is closed and rung 1 is True. 
D)either a or c.

Quizplus · Accepted Answer

Rung 2 will be true if either the pressure switch is closed (choice A) or the selector switch is closed and rung 1 is true (choice C). So, the best choice is D, which includes both options. The pushbutton being closed (choice B) is not relevant to the operation of Rung 2.

Rung 2 Will Be True Whenever