Materials Flashcards
1
Q
What metal is usually employed as a sacrificial anode for corrosion control purposes?
A
Zinc bar
2
Q
What is the relative dielectric constant for air?
A
1
3
Q
Which metal object may be least affected by galvanic corrosion when submerged in seawater?
A
Stainless steel propeller shaft
4
Q
Skin effect is a phenomenon where:
A
RF current flows in a thin layer of the conductor, closer to the surface, as frequency increases.
5
Q
Corrosion resulting from electric current flow between dissimilar metals is called:
A
Galvanic Corrosion
6
Q
Which of these will be most useful for insulation at UHF frequencies?
A
Mica
