Journeyman Practice Questions #1
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Multiple Choice: For each of the following questions, circle the letter of the answer that best answers the question.
- Receptacles mounted in boxes that are set back of the wall surface shall be installed so that the mounting ______of the receptacle is held rigidly at the surface of the wall
A. Screws or nails
B. yoke or strap
C. face plate
D. none of these
- Receptacle faceplate covers made of insulating material shall be noncombustible and not less than ______in thickness.
A. .10 in
B. .04 in
C. .01 in
D. .22 in
- Receptacles installed outdoors in a location protected from the weather or other damp locations shall be in an enclosure that is ______when the receptacle is covered.
A. rain tight
B. weatherproof
C. rainproof
D. weather tight
- Electric heaters of the cord and plug connected immersion type shall be constructed and installed so that current carrying parts are effectively ______from electrical contact with the substance in which they are immersed.
A. isolated
B. protected
C. insulated
D. all of these
- The minimum clearance between an electric space-heating cable and an outlet box used for surface luminaries shall not be less than ______.
A. 8 in
B. 14 in
C. 18 in
D. 6 in
- Exposed elements of impedance heating systems shall be physically guarded, isolated with a ______jacket to protect against contact by personnel in the area.
A. Corrosion resistant
B. waterproof
C. weatherproof
D. flame retardant
- The rating or setting of an overcurrent protection device for a 16.3A single nonmotor-operated appliance should not exceed ______.
A. 15 A
B. 35 A
C. 25 A
D. 45 A
- For phase converters serving variable loads, the ampacity of the single phase supply conductors shall not be less than ______percent of the single phase input full load amperes listed on the phase converter nameplate.
A. 75
B. 100
C. 125
D. 150
- Hazardous locations are classified based on properties of the ______that may be present and the likelihood that a flammable or combustible concentration or quantity is present.
A. Flammable vapors
B. Flammable gasses or liquids
C. Combustible dusts or fibers
D. All of these
- Electrical equipment installed in hazardous locations shall be constructed for the class, division a dn group. A group C atmosphere contains ______
A. hydrogen
B. ethylene
C. propylene oxide
D. all of these
- Which of the following wiring methods are permitted in a class I, division 1 location?
A. Threaded rigid metal conduit
B. Threaded IMC
C. MI cable
D. All of these
- A seal fitting is required for each conduit run passing from a Class I, Division 2 location into an unclassified location and shall be located no more than ______from the boundary.
A. 3 ft
B. 6 ft
C. 10 ft
D. 20 ft
- The ______of alcohol based windshield washer fluid shall not cause the areas used for service and repair operations in connection with self propelled vehicles to be classified as hazardous.
A. storage
B. handling
C. dispensing into motor vehicles
D. any of these
- Which of the following areas of an aircraft hangar are not classified as a Class I, Division 2 location?
A. Any pit or depression below the level of the hangar floor
B. Areas adjacent to and not suitably cut off from the hangar
C. Areas within the vicinity of the aircraft
D. Adjacent areas where adequately ventilated and where effectively cut off from the hangar
- In areas used for patient care, the grounding terminals of all receptacles and all non-current carrying conductive surfaces of fixed electric equipment ______shall be grounded by an insulated copper equipment grounding conductor.
A. Operating at over 100 V
B. Likely to become energized
C. Subject to personal contact
D. All of these
- In critical care areas of health care centers, each patient bed location shall be provided with a minimum of ______receptacles.
A. 10
B. 6
C. 3
D. 4
- A(n) ______system must supply major electric equipment necessary for patient care and basic hospital operation.
A. emergency
B. equipment
C. life safety
D. none of these
- Which of the following functions shall not be connected to the life safety branch circuits in a hospital?
A. Exit signs
B. elevators
C. administrative office lighting
D. communications systems
- At what ambient temperature must conductors be coordinated for determining ampacity if they are installed above a radiant heating ceiling panel?
A. 20 degrees C
B. 40 degrees C
C. 50 degrees C
D. None of above
- Where ______may be present in an agricultural building, enclosures and fittings must have corrosion-resistance properties suitable for the conditions.
A. Wet dust
B. Corrosive gases or vapors
C. Other corrosive conditions
D. Any of the above
True or False: For each statement, circle True or False.
True / False / 1. The purpose of the Equipotential plane is to prevent a difference in voltage within the agricultural building area.True / False / 2. The patient care area is any portion of a health care facility, including the business offices, corridors, lounges, day rooms, dining rooms or similar rooms.
True / False / 3. Two conductor NM cables cannot be stapled on edge.
True / False / 4. Wiring methods and equipment installed behind panels designed to permit access shall be so arranged and secured as to permit the removal of panels to give access to electrical equipment.
True / False / 5. Wiring for an amusement ride, attraction, tent or similar structure shall not be supported by any other or structure unless specifically designed for the purpose.
True / False / 6. When installed indoors for carnivals, circuses and fairs, flexible cords and cables shall be listed for wet locations and shall be sunlight resistant.
True / False / 7. A switch for the control of parking lights in a theater may be installed inside the projection booth.
True / False / 8. Single pole breakers utilizing approved handle ties cannot be used for the circuit disconnect for gasoline dispensing equipment.
True / False / 9. Parking garages used for parking or storage and where no repair work is done except for exchange of parts and routine maintenance requiring no use of electrical equipment, open flame, welding or the use of volatile flammable liquids, are not classified as hazardous locations.
True / False / 10. Where a portion of the dwelling unit basement is finished into one or more habitable rooms, each separate unfinished portion shall have a receptacle outlet installed.
True / False / 11. Where lighting outlet(s) is installed for interior stairways, there must be a wall switch at each floor landing that includes an entryway where the stairwell between floor levels has four risers or more.
True / False / 12. A branch circuit overcurrent protection device such as a plug fuse may serve as the disconnecting means for a stationary motor of 1/8 hp or less.
True / False / 13. Boxes, enclosures, fittings and joints are not required to be explosion proof in a class I, division 2 location. However, if arcs or sparks can result from equipment being utilized, that equipment must be installed in an explosion proof enclosure meeting the requirements for class I, division 1 locations.
True / False / 14. In a location where flammable anesthetics are employed, the entire area shall be classified as a class I, division 1 that shall extend upward to a level of 8 feet above the floor.
True / False / 15. The cover plates for receptacles supplied from the emergency system for essential electrical systems in hospitals must have a distinctive color or marking so as to be readily identifiable.
True / False / 16. In health care facilities, patient bed receptacles located in general care areas shall be supplied by at least two branch circuits. The branch circuits for these receptacles can originate from two separate transfer switches on the emergency system.
True / False / 17. Each general care area patient bed location shall be provided with 4 receptacles.
True / False / 18. Outdoor concrete confinement areas, such as feedlots, must have equipotential plane installed around metallic equipment that is accessible to the animals and likely to become energized. The Equipotential plane must encompass the area around the equipment where the animal stands while accessing the equipment.
True / False / 19. The minimum sized bonding jumper that can be used to bond an Equipotential plane to the electrical system is a number 10 AWG.
True / False / 20. Aluminum type SE cables can be installed in a poultry confinement building.
Fill in the Blank: Into each sentence below, copy a term from the word bank that correctly completes the sentence.
[6 AWG] / [cross sectional] / [8] / [circular mill] / [insulated][provided] / [250] / [poultry] / [4 AWG] / [grounded]
[7.5] / [120] / [shall] / [shall not] / [bonded]
- Agricultural buildings where excessive dust and dust with water may accumulate, including all areas of ______, livestock and fish confinement systems, where litter and dust or feed dust, including mineral feed particles, may accumulate.
- Conductors larger than ______can be phase taped green at the termination points to designate them as equipment grounding conductors.
- Where ungrounded conductors are increased in size, equipment grounding conductors, where installed, shall be increased in size proportionately according to the ______area if the ungrounded conductors.
- A separate bonding jumper to the metal water piping in the area served by a separately derived system ______be required where the metal water piping system is used as the grounding electrode for the separately derived system.
- For circuits over ______volts to ground, the electrical continuity of metal raceways and cables with metal sheaths that contain any conductor other than service conductors shall be ensured by one or more of the methods specified for services in 250.92(B) except for (B)(1).
- The service raceways, cable trays, cablebus framework, auxiliary gutters, or service cable armor or sheath shall be effectively ______together.
- Grounding rods shall be installed so that at least ______feet are in contact with the soil.
[Insert class title]: [Insert unit name] Page 5 7/19/06