Soldering is done on joints to improve:

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SDSC (ISRO) Technician B (Electronic Mechanic): Previous Year Paper (Held on 29 April 2018)
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  1. Tensile strength 
  2. Resistivity
  3. Ductility
  4. Conductivity

Answer (Detailed Solution Below)

Option 4 : Conductivity
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  • Soldering is the process of joining two metallic pieces without melting them.
  • In this, a metal alloy having a low melting point is filled in the pre-heated joint in a molten state.
  • This molten metal alloy fills the blank space of the joint and makes it permanent.
  • The cable joints which are soldered have good mechanical strength, good electric conductivity, and become corrosion resistant.
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