True/false

Question 1

The gas tungsten arc welding process can be use to join nearly all types and thicknesses of metal

Answer 1

true

Question 2

one drawback of GTA welding does that welders have an obstructed view of the molten weld pool

Answer 2

false

Question 3

charts and graphs that give the correct amperage, gas flow rate and time for various welds and metals were designed for Optimum conditions in the field

Answer 3

false

Question 4

if the end of the filler Rod becomes oxidized it must be cut off before restarting

Answer 4

true

Question 5

if the indicated power to a weld from two different types of welding machines it said it 100 amperes it will vary depending upon the voltage of the machine

Answer 5

true

Question 6

the average set on a machine at the actual welding current are often not the same

Answer 6

true

Question 7

mild steel is expensive and requires the most amount of cleaning

Answer 7

false

Question 8

when welding mild steel, slight changes in the metal have a large effect on the welding skill required

Answer 8

false

Question 9

black crusty spots appearing on weld theater often caused by improper cleaning of the filler rod

Answer 9

true

Question 10

the molten aluminum weld pool has low surface tension

Answer 10

false