Electrical level 1 module review for test 1

It is more resistant to water

• What does NEC article 344 contain?

• What is the purpose of sealing filled fitting?

• what is another name for a standoff support?

• What are the benefits of aluminum conduit?

Identical conductors in steel conduit

• The voltage drop of conductors carrying alternating current in PVC will be less than that of _______.

• what shall only be applied when the number of current-carrying conductors in a wireway exceeds 3?

• what is used to prevent damage to PVC caused by temperature changes?

• What type of conduit is used to connect machines that vibrate during operation?

what is EMT?

• installation specifications of surface metal raceways

• ...often too thin to be threated...

• To prevent passage of gases, vapors, or flames through the conduit

• expansion couplings

what is another name for a standoff support?

• installation specifications of surface metal raceways

• 10 feet

• Minerallac

• To prevent passage of gases, vapors, or flames through the conduit

every 10 feet

• what is another name for a standoff support?

• What does NEC article 344 contain?

• what is the maximum allowable spacing between horizontal wireway supports?

• How often must EMT be supported?

what is contained in NEC article 386?

• installation specifications of surface metal raceways

• It is more resistant to water

• To prevent passage of gases, vapors, or flames through the conduit

• Minerallac

To act as a moisture seal, an outer covering of liquidtight, sunlight-resistant flexible material is placed around ________.

• liquidtight flexible metal conduit

• ...often too thin to be threated...

• Flexible metal conduit

• Identical conductors in steel conduit

To prevent passage of gases, vapors, or flames through the conduit

• what is the maximum allowable spacing between horizontal wireway supports?

• What is the purpose of sealing filled fitting?

• what is contained in NEC article 386?

• What are the benefits of aluminum conduit?

What does NEC article 344 contain?

• Flexible metal conduit

• It is more resistant to water

• expansion couplings

• RMC support requirements

IMC

• which conduit has a wall thickness less than that of RMC but thicker than EMT?

• Which types of conduit bodies are used to provide a pull point on a straight conduit run?

• What type of conduit should be used where corrosion is a factor?

• which type of conduit bodies has a 90 degree connector with the cover on the left?