Question List for "Electricity for the Trades"

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Skills and Trades » An LED lamp uses light-emitting diodes as the source of light. New
Started by Apple716
32 Nov 27, 2023
Skills and Trades » To control a switch from three locations requires New 16 Nov 27, 2023
Skills and Trades » Contactors are used in conjunction with low current pilot devices to automatically control high current loads. New
Started by sbegs
36 Nov 27, 2023
Skills and Trades » With regard to relay switching configurations, pole is the number of New
Started by Gabby
19 Nov 27, 2023
Skills and Trades » For LEDs, what percent of the energy they consume is used to create visible light? New
Started by Drewster127
21 Nov 27, 2023
Skills and Trades » When a relay coil indicator light is ON this normally indicates that the load has power. New
Started by allywil32
14 Nov 27, 2023
Skills and Trades » Latching relay contacts will not retain their setting after a power failure. New
Started by Ethanolson3
17 Nov 27, 2023
Skills and Trades » A contactor is a special type of relay designed to handle heavy power loads that are beyond the ... New 25 Nov 27, 2023
Skills and Trades » For the circuit shown, switch 2 is a ________ switch. New 47 Nov 27, 2023
Skills and Trades » When no current flows through the coil of an electromagnetic relay it is said to be energized. New
Started by trevg
23 Nov 27, 2023