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Assignment Questions - 14176_142
Assignment Questions - 14176_144

Neets Module 04-Introduction to Electrical Conductors, Wiring Techniques, and Schematic Reading
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9 ASSIGNMENT 2 Textbook assignment: Chapter 2, “Wiring Techniques,” pages 2-24 through 2-53. Chapter 3, “Schematic Reading,” pages 3-1 through 3-24. _________________________________________________________________________________ 2-1.   Why must materials to be soldered be cleaned just prior to the soldering process? 1.    To ensure the solder will adhere to the surface 2.    To prevent the solder from becoming brittle from impurities and eventually failing 3.    To prevent an uneven flow of solder to the surface 4.    Each of the above 2-2.   What is meant by the term "tinning"? 1.    Removing the oxide coating of the material to be soldered 2.    Preheating the material to be soldered to remove any impurities left from the stripped insulation 3.    Coating the material to be soldered with a light coat of solder 4.    Applying pure tin to the material to be soldered to ensure adherence of the solder 2-3.   When a wire is soldered to a connector, why should the wire be stripped approximately 1/32 inch longer than the depth of the solder barrel? 1.    To prevent burning the wire insulation 2.    To allow the wire to flex more easily at stress points 3.    Both 1 and 2 above 4.    To prevent the flux from touching the insulation 2-4.   When a wire has been properly stripped and is to be soldered to a connector, what total length of the exposed wire should be tinned? 1.    One-third 2.    One-half 3.    Two-thirds 4.    The entire exposed length 2-5.   What action generally causes a fractured solder joint? 1.    Movement of the soldered parts during the cooling process 2.    Application of too much heat to the parts 3.    Introduction of impurities to the joint from dirty solder or flux 4.    Application of too much solder to the joint 2-6.   What term defines the capacity of a soldering iron to generate and maintain a satisfactory soldering temperature while giving up heat to the joint being soldered? 1.    Iron current flow 2.    Thermal inertia 3.    Resistance soldering 4.    Self-regulating heat THIS SPACE LEFT BLANK INTENTIONALLY.






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