Hazardous (Classified) Locations, 2023 NEC

1. A location where ignitible concentrations of flammable gases exist under normal operating conditions is a __________ location.

2. Equipment listed and marked for use in Zone 0 locations is permitted in a __________ location.

3. Article 512 convers cannabis oil preparatory equipment, extraction equipment, booths, and systems using __________ materials.

4. Which of these wiring methods are allowed in a Class II, Division 1 location?

5. Dusttight equipment is a protection technique allowed in _________ locations.

6. Protection techniques for hazardous (classified) locations can be found in Table __________ of Chapter 9.

7. At a motor fuel dispensing facility, a location may be unclassified if the AHJ can determine that liquids with a flash point lower than __________ will not be handled.

8. Any wiring method permitted in a(n) __________ location may be used for intrinsically safe apparatus.

9. In a Class I, Division 1 location, a conduit seal is required for an enclosure containing splices if the raceway entry it is trade size __________ or larger.

10. In Class III, Division 1 locations, Type MC cable is permitted if it uses __________ fittings.

11. For listed explosionproof equipment, joints with factory-threaded NPT entries must be made up with how threads fully engaged?