Standard welding ____ are used to indicate the welds required.
A. objects
B. marks
C. symbols
D. indicators
Answer: C
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?Rigid thermosets often find applications in ____ environments.
A. ?high-heat B. ?moist C. ?frigid D. ?extremely dry
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What is one of the main reasons the rooftop units has to be level?
What will be an ideal response?
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In Boolean algebra, 1 ? 0 = 0
Indicate whether the statement is true or false
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Taking temperature readings ranks among the most commonly performed tasks in our industry. A number of different types of thermometers are available. List three common thermometer types.
What will be an ideal response?
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