WELDABILITY OF STEEL - Practice Mode

1) What is the cause of hair line separation in the bead in arc welding?

Fast cooling Slow cooling Long arc length Wrong selection of electrode

Correct Answer: Fast cooling

2) What is the name of the steel material which are not weldable?

High carbon steel Medium carbon steel Austenitic stainless steel Ferrite and martensitic stainless steel

Correct Answer: Ferrite and martensitic stainless steel

3) Which is used to cut thin pipes of smaller sizes?

Chisel Hack sawing Pipe cutter Lathe parting tool

Correct Answer: Pipe cutter

4) What is the base for selecting the nozzle size for gas welding of a pipe?

Groove angle Welding position Diameter of pipe Pipe wall thickness

Correct Answer: Pipe wall thickness

5) Which type of filler rod shall contain higher percentage of iron?

Ferrous Non - ferrous Alloy type of ferrous metals Alloy type of non - ferrous metals

Correct Answer: Ferrous

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