Red Seal Welding Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Red Seal Welding Test. Study with multiple choice questions, flashcards, and receive hints and explanations for each question. Get ready for your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What component changes AC to DC?

Transformer
Capacitor
Inductor
Rectifier

The correct answer is: Rectifier

A transformer converts the voltage level of an alternating current, but does not change AC to DC. A capacitor is used to temporarily store and release electrical energy, but it does not convert AC to DC. An inductor is used to store and release energy in a magnetic field, but it does not change AC to DC. A rectifier, on the other hand, is a component that converts AC to DC by using diodes to allow current to flow in only one direction. Therefore, the correct answer is D.