Electrical Principles And Practical Electricity Flashcards
1
Q
What is a circuit breaker?
A
It is an electromechanical device
2
Q
Are the contacts in a stop button normally open or normally closed?
A
Stop buttons in hardwired motor starters have normally closed contacts.
3
Q
What is the purpose of an electrical interlock?
A
To prevent electrical equipment from operating out of sequence
4
Q
When testing with an ohm meter, should the power to the circuits or components under load be on or off?
A
The power should be off
