Maryland Journeyperson Electrician Exam, Special Occupancies: all 28 questions

All questions from the Special Occupancies section for Maryland Journeyperson Electrician Exam, each with the correct answer.

9001A room where flammable gases or vapors from flammable liquids may be present in quantities sufficient to produce an ignitible mixture is classified as which class?
9002A location is hazardous because of the presence of combustible dust. Which class applies under the class and division system?
9003A cotton gin where easily ignitible fibers are handled, but not normally suspended in the air in ignitible quantities, is generally classified as which class?
9004In a Class I location, what distinguishes a Division 2 area from a Division 1 area?
9005Under the zone system for flammable gases and vapors, which zone describes a location where ignitible concentrations are present continuously or for long periods?
9006Zone 20, Zone 21, and Zone 22 classifications are used for which hazard?
9007Gasoline and propane are placed in which material group for Class I locations?
9008Hydrogen belongs to which Class I material group?
9009An atmosphere containing combustible magnesium or aluminum dust is assigned to which Class II group?
9010A grain elevator handling flour and grain dust is classified as Class II, Group ____.
9016Which wiring method is generally permitted in a Class I, Division 1 location?
9018Enclosures for equipment in a Class II, Division 1 location must generally be of what type?
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?
9030A patient care space in which failure of equipment is likely to cause only minor injury to patients or caregivers is classified as which category?
9031Branch circuits serving patient care spaces must provide two equipment grounding paths. Which combination meets this requirement?
9035The essential electrical system of a hospital is divided into which branches?
9036Article 518 for assembly occupancies applies to buildings or portions of buildings designed for the gathering of how many persons or more?
9038At a carnival, overhead conductors must maintain what minimum horizontal clearance from amusement rides and attractions?
9039At a carnival, circus, or fair, 125-volt, single-phase, 15- and 20-ampere receptacles used by personnel or readily accessible to the public require what protection?
9047Every RV site with an electrical supply in an RV park must be equipped with at least which receptacle?
9057On a construction site, a 125-volt, single-phase, 20-ampere receptacle on a temporary power pole used by workers requires what protection?
9058Temporary electrical power for holiday decorative lighting is limited to a maximum period of how many days?
9059When must temporary wiring installed for construction be removed?

Maryland Journeyperson Electrician Exam, Special Occupancies: all 28 questions

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