Electrical Princibles And Practical Electricity Flashcards

1
Q

What is a circuit breaker?

A

It is an electromechanical device

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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.

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3
Q

What is the purpose of an electrical interlock?

A

To prevent electrical equipment from operating out of sequence

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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

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