Chapter 27 Flashcards
Which shade number provides the most protection when arc welding?
14
13
15
12
14
What completes the full electrical circuit so that enough heat will be available for the welding job?
Ground clamp
Cables
Electric arc
Generator
Ground clamp
True or False
The best clear lenses to help protect from flying slag or metal are plain glass.
False
Identify the three main types of power supplies for arc welding.
Cheapest to purchase, run on alternating current
a.
Transformers
b.
Rectifiers
c.
Generators
a
Transformers
Identify the three main types of power supplies for arc welding.
un on direct current, commonly used in industry, expensive to purchase, costly to operate
a.
Transformers
b.
Rectifiers
c.
Generators
c
Generators
Identify the three main types of power supplies for arc welding.
Can be run on either direct or alternating current
a.
Transformers
b.
Rectifiers
c.
Generators
b
Rectifiers
Match the terms with their correct definition.
Receives the amperage and directs it through the electrode to form the arc
a.
Electrode holder
b.
Electrode
c.
Cables
a
Electrode holder
Match the terms with their correct definition.
Allow the ground clamp and stinger to be mobile
a.
Electrode holder
b.
Electrode
c.
Cables
c
Cables
Match the terms with their correct definition.
Consists of an internal metal core and an outer coating called flux which shields the weld
a.
Electrode holder
b.
Electrode
c.
Cables
b
Electrode
Which of the following are reasons welders use oxyacetylene?
the simplicity of using the equipment
the portability
the low cost of equipment
work surfaces stay cool so no risk of burns
the simplicity of using the equipment
the portability
the low cost of equipment
True or False
You can utilize AC electrodes on a DC power source. However, you cannot use all DC electrodes on an AC power source.
True
Which is not a brand of welder discussed in this article?
Miller
Everlast
Lincoln
Hobart
Everlast
Of the items discussed in this article, which item will you most likely spend the most money on?
Arc welding machine
Oxyacetylene setup
Electrode holder and cables
Electrodes
Power source
Arc welding machine
True or False
Oxy-acetylene is an especially beneficial tool to have in the shop because it can cut stainless steel and aluminum.
False
Foot protection is extra useful when doing what activity?
Cutting
Chipping slag
Grinding
Cutting
