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2. A junction or mode of joining parts together; b) the place where two things
are joined together
3. The luminous arc or bridge across a gap between two electrodes when an
electric current is sent through them.
4. A careful, narrow or critical examination or survey; b) an official
examination.
5. An instrument which amplifies light waves by stimulation to produce a
powerful, coherent beam of monochromatic light, an optical maser.
6. Metal blended with some other metallic or nonmetallic substance to give it
special qualities, such as resistance to corrosion, greater hardness, or tensile
strength.
7. Peculiar or inherent quality.
8. A hot, ionized gas containing approximately equal numbers of positive
ions and electrons.
Writing
25 Make a description of the welding course you are following at the
University. Use the information in Activity 22 as an example.
Reading 4
26 You will read a text about underwater welding. Before you read make
a list of questions which you would ask about this career opportunity if you
were going to try it.
27 Read questions (A – F) commonly asked by those who have expressed
an interest in underwater welding, but were unsure how to get start. Then
read the answers (1 – 6) provided by AWS. Match each question with the
suitable answer. The first is done.
A. What are the age limitations of a welder-diver?
B. I am already a certified diver, what other training do I need to qualify
as a welder-diver?
The name of the course …
The course description …
The course outline …
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