Which action places an A1 switchboard in the on position?

• A. Turn the switch 60 degrees Clockwise
• B. Turn the switch 30 degrees Clockwise
• C. Turn the switch 30 degrees Counterclockwise
• D. Turn the switch 30 degrees Clockwise

Answer: (B)

The switchboard is activated by a precise rotation that brings the internal contacts into the correct alignment. For the A1 switchboard, turning the control 30 degrees clockwise from the off position places the wipers on the on contact set, completing the circuit and energizing the board. This small, defined movement is built into the switch’s detent, so 30 degrees clockwise is the exact position that signals “on.” Turning more (like 60 degrees) or rotating the other direction moves away from the on contact, which either de-energizes the board or selects a different circuit. So, the action that turns it on is a 30-degree clockwise rotation.