ELECTRICAL FUNDAMENTALS EXAM QUESTIONS AND ANSWERS LATEST UPDATE.

ELECTRICAL FUNDAMENTALS EXAM
QUESTIONS AND ANSWERS LATEST




1. What are the three parts of an atom? ANS >>> Protons, neutrons, electrons.



2. What charge does a proton have? ANS >>> Positive charge



3. What charge does a neutron have? ANS >>> Neutral charge
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, 4. What charge does a electron have? ANS >>> Negative charge



5. What is a conductor? ANS >>> Any element with less than four electrons in the
valance ring



6. What is a semi- conductor? ANS >>> Has exactly four electrons in the valance
(outer) ring



7. What is a insulator? ANS >>> Elements that have more than four electrons in the
valance (outer) ring



8. What is the purpose of wire insulation? ANS >>> To discourage the flow of
electrons



9. What forums can wire insulation take? ANS >>> Rubber, plastic, varnish,
glass and dielectric grease



10. How does wire gauge measuring work? ANS >>> The higher the guage
number the smaller the diameter of the wire.



11. What is the purpose of dielectric grease? ANS >>> Protects from corrosion.



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