For there to be a continuous logic path from left to right across the rung:
A)I/1,1/2,and 1/3 must all be at logic 1.
B)I/1,1/2,and 1/3 must all be at logic 0.
C)I/1 and 1/2 or 1/3 must be at logic 1.
D)I/1 and 1/2 or 1/3 will be at logic 0.

Question

For there to be a continuous logic path from left to right across the rung: 
A)I/1,1/2,and 1/3 must all be at logic 1. 
B)I/1,1/2,and 1/3 must all be at logic 0. 
C)I/1 and 1/2 or 1/3 must be at logic 1. 
D)I/1 and 1/2 or 1/3 will be at logic 0.

Quizplus · Accepted Answer

For there to be a continuous logic path from left to right across the rung, either I/1 and 1/2 or I/1 and 1/3 must be at logic 1. Both 1/2 and 1/3 cannot be at logic 1 at the same time because they are connected through the same branch of the rung. Therefore, option C is the best choice.

For There to Be a Continuous Logic Path from Left