Water will greatly ___________ the resistance of any dirty surface.

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 $25.99Unlock all

Prepare for the Lineman's Test C with our study resources. Use flashcards and multiple choice questions to enhance your understanding. Get ready to pass with confidence!

Multiple Choice

Water will greatly ___________ the resistance of any dirty surface.

Explanation:
Water makes a dirty surface more conductive by forming a thin, ion-rich film that provides a leakage path for current. Dirt alone is an insulating layer, but moisture dissolves some contaminants and introduces ions, so current can flow along the surface more easily. This dramatically lowers the surface resistance, which is why insulation resistance drops when surfaces are dirty and wet. Dry, clean surfaces have high resistance, while wet, dirty ones do not.

Water makes a dirty surface more conductive by forming a thin, ion-rich film that provides a leakage path for current. Dirt alone is an insulating layer, but moisture dissolves some contaminants and introduces ions, so current can flow along the surface more easily. This dramatically lowers the surface resistance, which is why insulation resistance drops when surfaces are dirty and wet. Dry, clean surfaces have high resistance, while wet, dirty ones do not.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy