The NEC® requires a clearance of at least __________ feet above final grade for service conductors where they are connected to the building, above sidewalks and other areas accessible to pedestrians.
a. 18
b. 12
c. 10
d. 8
c. 10
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Insulation is most effective if it is placed
A) on the inside face of the assembly. B) in the center of the assembly. C) on the outside face of the assembly.
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Where should grease be applied on an S-cam brake system components?
A. S-cam profile contact face B. cam roller contact face C. cam roller pocket race D. all of the above
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The traditional wood form used in concrete construction is typically _____
a. factory-made b. demolished after use c. left in place d. built on the job
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A spot face is used to provide a sloped bearing surface for a washer face or bolt head.
Answer the following statement true (T) or false (F)
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