Ten seconds immediately after switch S1 is closed, rung(s) ____ will be true.
A)No.1 only
B)No.1 and No.2
C)No.1 and No.3
D)No.1, No.2, and No.3

Name: Ten seconds immediately after switch S1 is closed, rung(s) ____ will be true. A)No.1 only B)No.1 and No.2 C)No.1 and No.3 D)No.1, No.2, and No.3
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Question

Ten seconds immediately after switch S1 is closed, rung(s) ____ will be true. 
A)No.1 only 
B)No.1 and No.2 
C)No.1 and No.3 
D)No.1, No.2, and No.3

Quizplus · Accepted Answer

Only the first rung will be true as it directly depends on the closure of switch S1. The other two rungs have additional conditions that need to be met for them to become true.

Ten Seconds Immediately After Switch S1 Is Closed, Rung(s) ____