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Leaming Task 1: True or False
Directions: Read each statement carefully. Write TRUE if the sentence states correct
statement about welding essentials; if not, write FALSE,
1. The welder controls the amperage variable by setting the correct amperage
on the welding machine prior to welding.
2. Direct Current Electrode Positive (DCEP) is also known as Straight Polarity.
3. If the arc length is too long, it will fail to generate enough heat to melt the base
metal properly
4. If the arc length is too short, the metal melts off the electrode in large globules
that wobble as the waves.
5. The electrode angle affects the weld bead shape.
6. Travel angle is an angle less than 90° between the electrode axis and the line
perpendicular to the weld axis and in a plane determined by the electrode
axis and the weld axis.
7. Work angle is an angle less than 90° in a line perpendicular to the work piece
and in a plane determined by the electrode axis and the weld axis.
8. If the iravel speed is too slow, the metals and the beads is high and wide, with
straight ripples
9. If the travel speed is too fast, the weld pool does not last long enough and
impurities are locked in the weld.
10. In welding, the selection of electrode depends on the types of metal to be
weld, the thickness of the metal and the task to do.
