Branch Circuits & WiringQuestion 166 of 521
Bends in electrical metallic tubing (EMT) must be made so that which of the following is true?
a.At least six bends are used
b.The tubing is heated first
c.The tubing is not damaged and its internal diameter is not effectively reduced
d.The radius is as tight as possible
Explanation
Section 358.24 requires EMT bends to be made so the tubing is not damaged and the internal diameter is not effectively reduced, using at least the radius shown in Chapter 9, Table 2. Kinking or flattening the tubing violates this. Heating EMT, forcing the tightest radius, or a fixed number of bends are not the standard.
Law Reference: 2023 NEC §358.24Practice all 521 questions free — no signup required.
Related questions on this topic
- In an attached dwelling garage with two vehicle bays, at least how many receptacle outlets are required, and in what location?
- A dwelling attached garage requires at least one branch circuit of what rating to supply the required garage receptacle outlets?
- A 125-volt, 15- or 20-ampere receptacle outlet for servicing must be installed within what distance of heating, air-conditioning, and refrigeration equipment?
- Direct-buried conductors or cables emerging from grade must be protected by enclosures or raceways from the required cover depth up to what height above finished grade?
- Rigid polyvinyl chloride conduit (PVC) is permitted to be used in which of the following locations?
- Electrical metallic tubing (EMT) is generally not permitted to be used in which condition?
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against California CSLB C-10 Electrical Trade Examination · How we review