Question 9018 of 749 · Maryland Journeyperson Electrician Exam
Enclosures for equipment in a Class II, Division 1 location must generally be of what type?
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 9018
- C: Dust-ignitionproof
Explanation
Class II, Division 1 equipment must be identified for the location, typically dust-ignitionproof, which excludes dust and prevents ignition of a dust layer or cloud outside the enclosure. Explosionproof is a Class I concept and does not by itself guarantee dust protection.
More questions: Special Occupancies
- 9019What is the basic design principle of explosionproof equipment?
- 9020Intrinsically safe systems covered by Article 504 rely on which protection principle?
- 9021At a motor fuel dispensing facility, how is the area up to 18 in above grade within 20 ft horizontally of a dispenser enclosure classified?
- 9022The emergency electrical disconnect for fuel dispensers must open which conductors of the circuits to the dispensing equipment?
- 9026In a major repair garage for gasoline vehicles without the specified mechanical ventilation, how is the floor area up to 18 in above the floor classified?
- 9029In health care facilities, a patient care space where failure of equipment or the electrical system is likely to cause major injury or death is which category?