
Kindly answer the questions in the box mentioned below:
1. Which type of cleaning solvent used before soldering or brazing of pipes?
A Flux
B Soap
C Resin
D Washing soda
2 Which method of soldering used for bulk production?
A Dip soldering
B Machine soldering
C Soldering with blow lamp
D Soldering with soldering iron
3 What is the practice shown
in figure?
A Brazing
B Soldering
C Arc welding
D Gas welding
4 Which type of flux used for soldering stainless steel?
A Resin
B Tallow
C Phosphoric
D Zinc chloride
5 Which type of metal used for brazing refrigerant pipe
joints?
A Gold
B Brass
C Silver
D Copper