Q1. Movement of the arc by magnetic forces in MMA welding is termed as-

a. Arc deviation
b. Arc misalignment
c. Arc blow
d. Arc eye

Q2- A metallurgical problem most associated with SAW is

a. Hydrogen cracking in HAZ
b. Solidification cracking in the weld metal
c. Hydrogen cracking in the weld metal
d. Lamellar tearing in the weld metal

Q3- Which electrode classification would be relevant to AWS A5.1

a. E 6013
b. E 7018-G
c. Fleetweld
d. E 5113

Q4- A common gas/ mixture used in MIG welding nickel alloys to combine good levels of penetration with good arc stability would be

a. 100% argon
b. 100% CO2
c. 80% argon 20% CO2
d. 98% argon 2% O2

Q5- A common gas/ mixture used in MIG/MAG steel welding with good arc stability and poor penetration would be

a. 100% argon
b.100% CO2
c. 80% argon 20% CO2
d. 98% argon 2% O2

Q6- A common gas/ mixture used in MIG/MAG steel welding with poor arc stability and good penetration would be

a. 100% argon
b. 100% CO2
c. 80% argon 20% CO2
d. 98% argon 2% O2

Q7- The type of SAW flux is more resistant to moisture absorption

a. Fused
b. Agglomerated
c. Basic
d. All are equally resistant

Q8- The type of SAW flux that requires baking prior to use

a. Fused
b. Agglomerated
c. Acidic
d. None of these

Q9- A large grain structure in steels is said to produce

a. Low ductility
b. Low fracture toughness
c. High fracture toughness
d. High tensile strength

Q10- The fused flux for SAW

a. resembles small particles of black glass
b. Tend to be acidic type
c. Produces low quality weld metal
d. All of the above