EETC Electrical Controls Final Flashcards
(8 cards)
1
Q
What is the first step in the system troubleshooting process?
A
To identify the problem or symptom
2
Q
What are 2 advantages of electromagnetic braking?
A
Safety and reliability
3
Q
Measurement, substitution, and component/circuit bridging are included in…
A
In-circuit component tests
4
Q
What will a mechanical problem with the timer, a stuck contactor, or a contactor that is shorted out cause?
A
A N.O. contact of a timer to be closed or not energize
5
Q
When will resistance jacks be used?
A
Typically, when using the continuity function of a DMM
6
Q
In a ladder logic control circuit, what signal is usually measured?
A
Voltage
7
Q
A reversing magnetic motor starter consists of what?
A
The forward contactor, the reverse contactor, and overload protection
8
Q
A
