Wire type THWN copper is run in a raceway from a wall outlet in a building under concrete floor where the conduit is in contact with the earth. The walls are exposed on both sides to free air. If the load requires a minimum wire rating of 75 A, the minimum wire size permitted is ____ AWG.

A. 4
B. 6
C. 8
D. 10


Answer: A

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The component labeled 6 in Figure 2 is a(n) _____.



a. end seal kit
b. splice kit
c. power connection kit
d. tee kit

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What is the large cage-like structure erected for the purpose of drilling for oil on land?

What will be an ideal response?

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Soil erosion can become a major problem whenever soil is disturbed

Indicate whether the statement is true or false

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The interrupting rating of fuses can be as high as __________ amperes.

a. 5,000 b. 10,000 c. 20,000 d. 300,000

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