A meter shows OL after a fuse blows. What does OL stand for?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Pass the California Alarm Company Operator Exam. Study with flashcards and multiple choice questions, each with hints and explanations. Prepare for your exam with confidence!

Multiple Choice

A meter shows OL after a fuse blows. What does OL stand for?

Explanation:
When a meter shows OL, it means there is no continuity along the path being tested—the circuit is open. A blown fuse creates exactly that kind of break in the circuit, stopping current flow. With the path interrupted, the meter cannot measure a finite resistance, so it displays OL to indicate an open line. This is different from terms that imply a measurement limit or a functional loop elsewhere, which don’t describe a broken conductor in the circuit you’re testing.

When a meter shows OL, it means there is no continuity along the path being tested—the circuit is open. A blown fuse creates exactly that kind of break in the circuit, stopping current flow. With the path interrupted, the meter cannot measure a finite resistance, so it displays OL to indicate an open line. This is different from terms that imply a measurement limit or a functional loop elsewhere, which don’t describe a broken conductor in the circuit you’re testing.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy