A threading tool should:

A) Have no side relief angle
B) Be ground to off set any built in back rake from the holder, thus giving it zero rake
C) Have a negative rake since it has a tendency to "dig in"
D) Be checked with a drill gage


B

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Describe the characteristics of typical drinking fountains.

What will be an ideal response?

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Indicate whether the statement is true or false

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Water-cooled condensers using sea water are usually designed and built to permit periodic cleaning by ____.

A. brushing the tubes B. acid treatment C. back finishing D. All of the above.?

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One unique problem with rooftop units installed in a seacoast area is that

A) the prevailing winds reduce the cooling capacity of the condenser B) systems with a high sensible capacity are required because of the low humidity in coastal areas C) codes in coastal areas typically require a minimum 3 foot ground clearance to allow for flooding D) salt spray accelerates corrosion of metallic parts, especially the condenser coil

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