Technician A says that both R-12 and R-134a refrigerants are lighter than air when in a gaseous state. Technician B says that using an electronic leak detector is not always the best way of sourcing a leak because its sensitivity can make identifying the location difficult. Who is correct?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B
Answer: B
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____ systems provide heating and cooling supply to terminal units by running a heating supply pipe to each terminal.
A. Two-pipe B. Three-pipe C. Four-pipe D. Six-pipe
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The lever that attaches the steering linkage to the steering gearbox is called the ____________________.
Fill in the blank(s) with the appropriate word(s).
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Producers are in the business of raising animals for
What will be an ideal response?
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Most purebred swine are used in the __________ business instead of commercial pork production.
Fill in the blank(s) with the appropriate word(s).
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