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Introduction to Electrical Conductors, Wiring Techniques and Schematic Readings


Quiz Questions

1. These components provide the majority of the operating characteristics of any electrical circuit. They are useless, however, if they are not connected together. Conductors are the means used to tie these components together.
True
False

2. The square mil is a unit of measurement used to determine the cross-sectional area of a square or rectangular conductor.
True
False
3. The circular mil is the standard unit of measurement of a round wire cross-sectional area
True
False
4. A circular-mil-foot (figure 1-3) is a unit of volume
True
False
5. A bus bar is a heavy copper strap or bar used to connect several circuits together. Bus bars are used when a large current capacity is required.
True
False
6. Table 1.1 in page 17/152 denotes
Specific resistances of common substances
Specific resistivity of common substances
7. Which figures represent conductors?
Figure 1-5 in page 22
Figure 1-4 in page 21
Figure 1-6 in page 22
Both a and c
8. The resistance of pure metals, such as silver, copper, and aluminum, increases as the temperature increases. However, the resistance of some alloys, such as constantan and manganin, changes very little as the temperature changes.
True
False

9. __________is the ability of an insulator to withstand potential difference.
Dielectric strength
Insulation Resistance
10.

On page 23 the factors governing the current rating are conductor size, wire location, insulation and safe current ratings.

True
False
11.

What do pages 26-32 discuss about?

Types of insulation
Types of conductors
12. Insulation removal methods are discussed in pages 42, 43 &44.
True
False
13. As seen in Chapter 2 they are ________types of commonly used splices.
Six
Two
Four
14. Grease or oil films can be removed with a suitable solvent, but it’s still alright if the connections were dirty in order to be soldered. So cleanliness is not essential for efficient, effective soldering.
True
False
15. The pencil iron as shown in figure2-33 represents a soldering tool.

True
False
16. Flux is a cleaning agent to remove oxidation during soldering. Heating a metal causes rapid oxidation. Oxidation prevents solder from reacting chemically with a metal. Flux cleans the metal by removing the oxide layer.
True
False
17. Since most cable wires are stranded, it is necessary to use terminal lugs to hold the strands together to aid in fastening the wires to terminal studs (see figure 2-11).
True
False
18. The cable and wire marking systems were discussed in detail in chapter 3 from pages 95-100.

True
False
19. Details about how to draw the block diagrams, line diagrams, schematic diagrams and wiring diagrams are all given in chapter 2.

True
False
20. An isometric diagram is shown in
Figure3-7
Figure3-6