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Commercial wiring Questions And Answers Latest 2024/ 2025 Graded A+ | 100% Verified!
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Commercial wiring Questions And Answers Latest 2024/ 2025 Graded A+ | 100% Verified!
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Commercial wiring1.What does the term (GAIN) refer to?: The distance saved in arc of the
bend
2.What is meant by run of conduit?: The distance from one box to the nex
box
3.What are the three types of solid metal conduits?: IMT, RMC, EMT
4.When making a back to back bend, how many measurements are
required?-
:3
5.Do you add or subtract the gain?: Subtract
6.How many bends are allowed in a run armored cable?: No Max
7.What is the largest diameter (ID) of IMC?: 4
8.Type A.C cable must be supported every feet along a run: 4.5
9.Thin wall conduit must be supported feet along a run ?: 10
1/
14
, 10.When making a 90 degree bend using 1/2 EMT, how much must
you subtract from the total length?: 2 5/8 or 2.625 inches
11.What size THW cu conductor for a 225 amp overhead service for an
office building: 1/0 THW
12.The center bend of a three-bend saddle is made by using which mark
on the Bendfield Bender?: Tear drop
13.When making a back to back bend which mark do you use on the
ideal bender: Arrow
14.If you are using an ideal bender and you are making an offset bend
which mark do you use?: Arrow
15.When bending a box offset to fit into a device box, how far should
the conduit be from the wall to the box connector?: 1/2"
16.Bx, MC or AC cable must be supported within how many inches of a
device box: 12"
17.In Armored Cable there is a bare copper wire, what is this wire called
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