1What is the most common type of signal light?
Neon
2Does a neon signal light have any resistance when checked with an ohmmeter?
No
3Neon lights are designed in lower voltages. How can they be used in higher voltages?
Resistors built into the cocket to lower the voltage
4LED signal operate at what voltage?
Low voltage is the range of 3 to 6 VDC
5A signal light connected across a load will indicate what?
When the load is energized
6A signal light connected across a control will indicate what?
When the control contacts are open
7Will neon lights conduct much of a current?
No
8What normally shorts in a neon light, the bulb, the connections, or the socket?
Socket
9When a neon light shorts, can you normally read a short to ground with an ohmmeter?
No
10How can neon signal lights be used to help troubleshoot erratic equipment problems?
They can be wired across controls to tell when they are open, and across loads to tell when they have power
11Anytime you have a short circuit and cannot read a problem with an ohmmeter, the problem will most often be found in one of what two components?
Switches or signal lights
12If a neon light starts flickering, what is indicated?
The light is failing, it just needs to be replaced