A project detail specifies 1½ inches of separation from the lowest roof-deck surface to the nearest raceway surface. An inspection measures 1¼ inches. What is the shortfall against this detail?

Electrician exam practice question · Wiring Methods & Materials

A project detail specifies 1½ inches of separation from the lowest roof-deck surface to the nearest raceway surface. An inspection measures 1¼ inches. What is the shortfall against this detail?

A½ inch
¼ inch
C1 inch
DNo shortfall.

Where to look it up

Explicit exercise assumptions; not a universal code requirement.

Why B is correct

1½ − 1¼ = ¼ inch. This measures compliance with a supplied detail; it does not claim every wiring method or adopted code edition has the same rule or exceptions.

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A project detail specifies 1½ inches of separation from the lowest roof-deck surface to the nearest raceway surface. An inspection measures 1¼ inches. What is the shortfall against this detail?

A project detail specifies 1½ inches of separation from the lowest roof-deck surface to the nearest raceway surface. An inspection measures 1¼ inches. What is the shortfall against this detail?

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