NCCER Industrial Electrician V5 Review Questions and Correct Answers

Electrical Metallic Tubing (EMT) The lightest duty and most widely used non flexible conduit is EMT What is often referred to as thin wall conduit? EMT NEC article 358 covers Steel or aluminum RMC is made of PVC A type of conduit that should be used when corrosion is a factor is TRUE TRUE or FALSE: PVC requires the use of expansion joints to avoid damage due to temperature changes HDPE A type of conduit approved for direct burial is Flexible Metal Conduit (FMC) The type of conduit used to connect machines that vibrate during operation is 360 degrees or 4 90 degree bends NEC limits the total number of bends in one continuous between pull points (ex. conduit bodies and boxes) to 90 degree bend or a "90" The NEC's quarter angle bend is Bushing The fitting used to protect conductors from the sharp edges of conduit where it enters is called a 4 AWG and larger Ungrounded conductors entering a Raceway must be protected by bushings when they are size No. Nipple To avoid having to make an offset bend use a fitting known as a Type C A type of conduit body used to provide a pull point on a straight conduit run is Type X a type of conduit body used at four intersecting conduits is Type lrl A type L conduit body that has a cover on both sides is a