WELDABILITY OF STEEL - Quiz

1) How is the scale and oxide removed from stainless steel weld?

Peening Cooling in oil Cooling in sand Heating up to 9500 to 11000C and quenched in water

2) What makes for the buckling of weld joint, in stainless steel during cooling?

Over heated zone Low thermal conductivity Chromium contamination High thermal conductivity

3) What is the name of short weld made prior to the welding to hold the plates in perfect alignment?

Bead weld Tack weld String bead Strong weld

4) What type of defect will occur due to evaporation of the trapped gas from the liquid metal?

Arc blow Porosity Over lap Crack

5) Which welding the slag inclusion defect will occur?

Manual metal arc welding Tungsten invert gas welding Malattic invert gas welding Oxy - acetylene gas welding