SOLDERING DE SOLDERING AND VARIOUS SWI - Practice Mode

Cold joint Poor wetting Dull grainy surface Flux trapped against lead

Correct Answer: Dull grainy surface

Cold joint Poor wetting Pits and voids Dull gravity surface

Correct Answer: Cold joint

Solder setting very slowly Results in dry brittle joint Disturbs the chemical bonding Joint becomes mechanically stronger

Correct Answer: Results in dry brittle joint

Flux will not dissolve It will corrode the joint It results in oxidation of solder It disturbs the chemical bonding take place

Correct Answer: It disturbs the chemical bonding take place

To help the corrosive action Cleaning before soldering the joint To break down the acid within the joint Remove residual flux and prevent corrosion

Correct Answer: Remove residual flux and prevent corrosion