SkillsUSA preliminary contest Industral Motors Controls Written test Q10

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SkillsUSA preliminary contest Industral Motors Controls Written test Q10

  • 0.812

    Votes: 2 66.7%

  • 1.216

    Votes: 1 33.3%

  • 1.22

    Votes: 0 0.0%

  • 4.06

    Votes: 0 0.0%

  • 6.08

    Votes: 0 0.0%
  • Total voters
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fmtjfw

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Location
Fairmont, WV, USA
In a 20 ft. straight run of ? inch PVC conduit subject to 100?F temperature change, what is the change in length of the conduit in inches?

Also Code Reference?
 
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fmtjfw

Senior Member
Location
Fairmont, WV, USA
My Answer

My Answer

A

(10) In a 20 ft. straight run of ? inch PVC conduit subject to 100?F temperature change, what is the change in length of the conduit in inches?

Table 352.44 gives the expansion values for PVC. The English measure/ ?F gives inches /100ft.
The 100?F gives 4.06 inches /100 feet. Dividing that by 5 (100/20) gives 0.812.
Code Ref:
T352.44
Index:
Conduits ? Rigid polyvinyl chloride see Rigid polyvinyl conduit
Raceways ? Rigid polyvinyl conduit (type PVC) see Rigid polyvinyl conduit
Rigid polyvinyl chloride conduit (Type PVC) ? Expansion fittings
 
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