SOLDERING DE SOLDERING AND VARIOUS SWI - Quiz

1) Which soldering instrument has hot air blowing facility?

Soldering iron Soldering station Wave soldering machine Temperature controlled soldering iron

2) What is produced by the power supply connected soldering iron?

Fire Heat Cool air Water vapour

3) What is the purpose of flux in soldering electronic circuit components?

Form the oxide layer Reduce the solder cooling time Increase the melting temperature of solder Dissolve the oxide layer on the metal surface

4) Which gauge number of rosin-cored solder is suitable for soldering medium sized joints?

16 gauge rosin cored 18 gauge rosin cored 22 gauge rosin cored 24 gauge rosin cored

5) How the flux residue is removed after soldering a joint?

Water Petrol Organic flux Isopropyl alcohol