What is the purpose of a pilot light in a control circuit?

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Multiple Choice

What is the purpose of a pilot light in a control circuit?

A pilot light is a visual status indicator for a control circuit. It lights up when the circuit or a specific device (like a relay coil) is energized, giving a quick, at-a-glance indication of whether power is present and the part of the system is on. This makes troubleshooting and status checks faster because you can see the circuit’s state without measuring with instruments. It doesn’t power other devices and it doesn’t regulate voltage; it simply draws a small current to illuminate. Overheating isn’t what a pilot light shows—that’s tracked by separate sensors or indicators.

A pilot light is a visual status indicator for a control circuit. It lights up when the circuit or a specific device (like a relay coil) is energized, giving a quick, at-a-glance indication of whether power is present and the part of the system is on. This makes troubleshooting and status checks faster because you can see the circuit’s state without measuring with instruments. It doesn’t power other devices and it doesn’t regulate voltage; it simply draws a small current to illuminate. Overheating isn’t what a pilot light shows—that’s tracked by separate sensors or indicators.

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