ABYC Corrosion Exam (Questions and Answers)

GFCI stands for... - Answer-Ground Fault Circuit Interrupter T/F A galvanic isolator WILL block stray AC. - Answer-False. A galvanic isolator WILL NOT block AC. It will only blocks stray DC that is moving through the green grounding conductor. T/F An isolation transformer makes a galvanic isolator unnecessary. - Answer-True. An isolation transformer works through electromagnetic _________. - Answer-Induction A reverse polarity indicator is placed between which two wires? Why? - Answer-White neutral and green grounding. If the black hot and white neutral are reversed, electricity will flow through the white neutral illuminating the indicator light and leaving through the green grounding conductor. Bonding wires shall be at least #__ AWG - Answer-#8 AWG Electrolytic corrosion is commonly known as: - Answer-Stray-current corrosion Stray-current corrosion is technically called: - Answer-Electrolytic corrosion Matter can exist as a - Answer-Solid, liquid, or gas Matter is made from - Answer-Molecules Molecules are made of - Answer-Atoms Atoms are made of - Answer-protons, neutrons, electronsThe atom is electrically - Answer-Neutral. That's because the particles that comprise an atom balance each other. the outer shell of an atom is called the - Answer-Valence shell When the valence shell of an atom is completely filled, the atom is in its most ______ state. - Answer-Stable. Atoms that have gained or lost an electron are known as - Answer-Ions T/F Ions can have positive or negative charges? - Answer-True. Define Ionization - Answer-The process by which an atom or molecule acquires a charge. What are the two types of chemical bonds? - Answer-Covalent and ionic In covalent bonds, atoms form chemical bonds by _______ electrons. - Answer-Sharing. E.g. water, H2O In ionic bonds, atoms form chemical bonds by _______ electrons. - Answer-Giving up or gaining electrons. The atom giving an electron become a positive ion. The atom gaining an electron becomes a negative ion. Oppositely charged bodies are attracted to each other, bonding them together. E.g. Sodium Chloride, NaCl, table salt. T/F Atoms in the valence shell are involved in the corrosion process? - Answer-True