Flashcards in ITEC 220 Test #1 Deck (69)
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1
Short circuit
An unintended path for current to flow which bypasses the intended devices
2
A three-wire line cord has one connector tied to chassis ground
True
3
Fuse
A protection device which overcurrent produces heat to melt a fusible element
4
Circuit breaker
A circuit interruption device that activates when an overcurrent is applied
5
Thermal overload
A protection device that opens when the ambient temperature rises above the rated value
6
Electromechanical relay
A switch that is activated by electromagnetism
7
If a fuse blows, replace it with a higher valued one
False
8
A fuse is what type of indicator
Circuit overload
9
An interlock or third-wire ground plug is an example of
Prevention protection
10
Schematic symbol
Drawings that represent components
11
Transducer
A device that changes one from of energy into another form
12
Atom
The smallest particle of an element
13
Proton
A heavy positive particle in the nucleus of an atom
14
Electron
A light negative particle orbiting the nucleus of an atom
15
Nucleus
The center of an atom. It consists of protons and neutrons
16
Neutron
A heavy particle, having no charge, found in the nucleus of an atom
17
Charge
The attraction and repulsion between particles
18
Element
A material that cannot be broken down by chemical reaction
19
Molecule
The smallest unit of a compound that has the same characteristics as the compound
20
Compound
A material whose molecules are the same
21
Shells/rings
The layers in which the electrons are found
22
The smallest particles into which an atom can be divided are called
Protons and electrons
23
An electron has a negative charge
True
24
Unlike charges repel each other
False
25
What is formed when two or more atoms of different elements are combined
A molecule
26
Valence electrons
The outermost electrons of an atom
27
Free electrons
Valence electrons that can move easily from atom to atom
28
Insulators
Compounds in which the bonding of the atoms prevent the valence electrons from becoming free electrons
29
Dielectrics
Insulators that help electrodes store charge
30
