Classrep2

IN THE ATTIC AND SOFFIT LOCATIONS OF ELECTRIC SIGNS, THE BALLAST, TRANSFORMERS, ELECTRONIC POWER SUPPLIES, AND CLASS 2 POWER SOURCES SHALL BE PERMITTED TO BE LOCATED IN ATTICS, PROVIDED THERE IS AN ACCESS DOOR AT LEAST _________ AND A PASSAGEWAY OF AT LEAST 3 FEET HIGH X 2 FEET WIDE WITH A SUITABLE PERMANENT WALKWAY AT LEAS 12 INCHES WIDE EXTENDING FROM POINT OF ENTRY TO EACH COMPONENT - ANSWER36 INCHES X 22 1/2 INCHES WHERE A 12 FT NONMETALLIC POLE IS USED TO SUPPORT A SIGN WHICH IS USED AS ...

A 120 volt road sign has #6 copper THWN conductors in a 2" PVC conduit. The sign pulls 8 amps and is on a 30 amp breaker. what is the longest distance that the sign can be located from the sub-panel and still be legal? Use k = 12.9 a. 100-200 feet b. 201-300 feet c. 301-400 feet d 401-500 feet - ANSWERd. 401-500 A 175 KVA, single phase transformer having a primary voltage of 240 and a secondary voltage of 120 has been installed at a multi-family dwelling. The current available at the...

At carnivals and fairs, service equipment shall not be installed in a location that is accessible to unqualified persons, UNLESS the equipment ____. A. has a voltage to ground of not more than 125 volts B. is provided with GFCI protection C. is lockable D. is installed at a height of more than 6 feet - ANSWERC. is lockable pg. 463 Where the NEC specifies that one equipment shall be "within sight from" or "within sight of" another equipment, the specified equipment is to be ...

1 in figure - ANSWERpower connection 7 in figure - ANSWERend seal A 30 degree kick has a hypotenuse of 10". Given that the cosecant of 30 degrees is 2, determine the side opposite or how far off the surface the end of the kick needs to be. - ANSWER5" A 30-microfarad capacitor is in parallel with a 15-microfarad capacitor. The total capacitance is ___ - ANSWER45 A 5-ohm and a 20-ohm resistor are connected in parallel. What is the total resistance of these two resistors? - ANSWER...

NEC Article ______ defines breakers and fuses. - ANSWERAccording to NEC Article 100, a device that opens and closes a circuit by nonautomatic means automatically closes for a predetermined overcurrent. Annex _____ of NEC covers conduit fill. - ANSWERAnnex C of NEC covers conduit and tubing fill for conductors and fixture wire fill. NEMA stands for National Electrical Manufacturers Association - ANSWERTrue - NEMA is the acronym for National Electrical Manufacturers Association. What does...

At carnivals and fairs, service equipment shall not be installed in a location that is accessible to unqualified persons, UNLESS the equipment ____. A. has a voltage to ground of not more than 125 volts B. is provided with GFCI protection C. is lockable D. is installed at a height of more than 6 feet - ANSWERC. is lockable pg. 463 Where the NEC specifies that one equipment shall be "within sight from" or "within sight of" another equipment, the specified equipment is to be ...

A 150 kVA service transformer has a 480Y/277 volt 3-phase primary and a 208Y/120 volt, 3-phase secondary. What is the approximate full-load ampere rating of the primary of the transformer? - ANSWER180 amperes A 50 kVA transformer with a 480-volt, 3-phase, primary and a 208Y/120 volt, 3-phase secondary is to be installed. Overcurrent protection is required on both primary and secondary sides of the transformer. Determine the MAXIMUM standard size overcurrent protection device permitted on the ...

#1 Refer to the Level Power plan by clicking on the EXHIBIT button above Based on the information shown of this exhibit, the current in the branch circuit for the HP-5 indoor unit is _________amperes A.0 B. 7.2 C. 52.0 D. 72.1 - ANSWERD. 72.1 #2 Refer to the Level Power plan by clicking on the EXHIBIT button above For the circuit that serves the outside HP-5 motor compressor conditioning unit, the maximum rating of the inverse time breaker permitted to provide short-circuit is ___am...

______ shall be permitted to be concealed within walls, floors and ceilings were the walls, floors and ceilings provide a thermal barrier material which has at least one hour finish reading as identified in listing of fire rated assemblies. - ANSWERENT _____________ motors are permitted as controllers. - ANSWERPortable ________________ shall clearly indicate whether they are in the open off or closed on the position where circuit breaker handles are Operated vertically rather than rotation...

2 wires in nipple - ANSWER31% 20 amp Branch circuit supplies multiple receptacles the receptacles shall have a ampere rating no less than - ANSWER15 amps 24' nipple fill - ANSWER60% 30' nipple - ANSWER53% 42' nipple - ANSWER53% a 120 volt 15-20 amp receptacle shall be located with in of air conditioning and refrigeration, heating systems - ANSWER25 feet a door used by personnel to exit the work space that is less than 25 feet from the work space shall - ANSWERswing out...