As shown in the illustration, the...

Question 1 / 2707066636eed28f7522a1c51db37

Question 1 of 2707066636eed28f7522a1c51db37

As shown in the illustration, the change-over switch is what type of device? Illustration EL-0058

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Question 1 of 27070

As shown in the illustration, the change-over switch is what type of device? Illustration EL-0058

If the question has a related picture, it will appear here.

🔍 Key Concepts

• Look at how many separate circuits (poles) the change-over transfer switch controls in the schematic. • Count how many different output paths (throws) each moving contact can connect to. • Recall that a switch name is written as [number of poles]‑pole, [number of throws]‑throw (e.g., single‑pole double‑throw).

💭 Think About

• Trace the wiring from the change-over transfer switch: how many independent conductors change position when the switch is operated? • For each moving contact, how many different fixed contacts can it connect to—one or two? • Does the switch simply turn one circuit on/off, or does it transfer a circuit between two possible paths or sources?

✅ Before You Answer

• Verify how many moving contacts are drawn for the change-over switch symbol; that gives you the number of poles. • Verify whether each moving contact can connect to one fixed contact (single throw) or two alternative fixed contacts (double throw). • Confirm that the option you choose matches both the counted poles and throws, not just one of them.

Question 1 of 27070

As shown in the illustration, the change-over switch is what type of device? Illustration EL-0058

double-pole, double-throw switch

double-pole, single-throw switch

single-pole, single-throw switch

single-pole, double-throw switch

Question 1 / 2707066636eed28f7522a1c51db37

Question 1 of 2707066636eed28f7522a1c51db37

As shown in the illustration, the change-over switch is what type of device? Illustration EL-0058

Back

Question 1 of 27070

As shown in the illustration, the change-over switch is what type of device? Illustration EL-0058

If the question has a related picture, it will appear here.