When the switch is set in the hand position, contacts 1 and 2 are closed, and contacts 3 and 4 are________ .
A)in auto position
B)open
C)disconnected
D)also closed

Question

Quizplus · Accepted Answer

Contacts 1 and 2 being closed is the only relevant information in this question. Nothing is mentioned about contacts 3 and 4 being connected to anything or serving any purpose, so it is safest to assume they are open when the switch is in the hand position. When the switch is set in the hand position, only contacts 1 and 2 are closed. Contacts 3 and 4 remain open.

When the Switch Is Set in the Hand Position, Contacts