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Master Electrician exam questions and complete correct answers 2024
In a farm building where livestock is housed and an equipotential plane system is required because wire mesh or other conductive elements are embedded or placed under concrete and bonded to metal structures that could become energized, the equipotential plane is necessary to minimize _____ differences within the plane. - correct answer voltage When exceptions are not to be considered, the MINIMUM voltage allowed at the line terminals of a 480-volt, three-phase, fire pump controller under moto...
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- • 3 pages •
In a farm building where livestock is housed and an equipotential plane system is required because wire mesh or other conductive elements are embedded or placed under concrete and bonded to metal structures that could become energized, the equipotential plane is necessary to minimize _____ differences within the plane. - correct answer voltage When exceptions are not to be considered, the MINIMUM voltage allowed at the line terminals of a 480-volt, three-phase, fire pump controller under moto...
ELECTRICIANS PRACTICE EXAM 2024 questions and complete correct answers
1. Disregarding exceptions, dry-type transformers located indoors having a rating of greater than _____ shall be installed in a transformer room of fire-resistant construction. A. 75 KVA B. 87 1/2 KVA C. 112 1/2 KVA D. 50 KVA - correct answer C- 112 1/2 KVA 450.21(B) pg 335 2. What is the MINIMUM height allowed for a fence enclosing an outdoor installation of 2,400 volt electrical equipment? A. 6 feet B. 7 feet C. 8 feet D. 9 feet - correct answer B - 60 7 feet 110.31 pg 49 ...
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- • 10 pages •
1. Disregarding exceptions, dry-type transformers located indoors having a rating of greater than _____ shall be installed in a transformer room of fire-resistant construction. A. 75 KVA B. 87 1/2 KVA C. 112 1/2 KVA D. 50 KVA - correct answer C- 112 1/2 KVA 450.21(B) pg 335 2. What is the MINIMUM height allowed for a fence enclosing an outdoor installation of 2,400 volt electrical equipment? A. 6 feet B. 7 feet C. 8 feet D. 9 feet - correct answer B - 60 7 feet 110.31 pg 49 ...
NYC Master Electrical Exam questions and complete correct answers 2024
neutral point - correct answer The common point on a wye-connection in a polyphase system or midpoint on a single phase, 3-wire system, or midpoint of a single phase portion of a 3-phase delta system, or a midpoint of a 3-wire, direct current system In the NEC the words ___________indicate a mandatory requirement - correct answer Shall or shall not On a four wire Delta connected system with a midpoint of one phase winding is grounded, only the conductor or bus bar having a higher phase vol...
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- • 41 pages •
neutral point - correct answer The common point on a wye-connection in a polyphase system or midpoint on a single phase, 3-wire system, or midpoint of a single phase portion of a 3-phase delta system, or a midpoint of a 3-wire, direct current system In the NEC the words ___________indicate a mandatory requirement - correct answer Shall or shall not On a four wire Delta connected system with a midpoint of one phase winding is grounded, only the conductor or bus bar having a higher phase vol...
Electrician's Licensing Exam questions and verified correct answers 2024
NEC Article ______ defines breakers and fuses. - correct answer According 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. - correct answer Annex C of NEC covers conduit and tubing fill for conductors and fixture wire fill. NEMA stands for National Electrical Manufacturers Association - correct answer True - NEMA is the acronym for National Electrical Manufacturer...
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- • 23 pages •
NEC Article ______ defines breakers and fuses. - correct answer According 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. - correct answer Annex C of NEC covers conduit and tubing fill for conductors and fixture wire fill. NEMA stands for National Electrical Manufacturers Association - correct answer True - NEMA is the acronym for National Electrical Manufacturer...
Master Electrician exam questions and verified correct answers 2024
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? - correct answer180 amperes Where a conductor is marked RHW-2 on the insulation what does the "-2" represent? - correct answerThe conductor has a maximum operating temperate of 90 degrees C. For a grounded electrical system supplied by a feeder or branch circuit, the equipment grounding conductor shall...
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- • 10 pages •
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? - correct answer180 amperes Where a conductor is marked RHW-2 on the insulation what does the "-2" represent? - correct answerThe conductor has a maximum operating temperate of 90 degrees C. For a grounded electrical system supplied by a feeder or branch circuit, the equipment grounding conductor shall...
Master Electrician exam questions and complete correct answers 2024
According to the National Electrical Code, the minimum size TW copper conductor for a 5 HP, 3 phase, 230 volt, squirrel cage motor started at full voltage shall not be less than # ___ AWG. - correct answer 14 How many AWG #12 THHN conductors are allowed in a 1" RMC nipple? - correct answer 35 wires How many AWG #12 THHN conductors are allowed in a 1" RMC? - correct answer 26 #12 THHN conductors The circular mil area of a #18 AWG would be ___ CMILS for solid or stranded. - correc...
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- • 6 pages •
According to the National Electrical Code, the minimum size TW copper conductor for a 5 HP, 3 phase, 230 volt, squirrel cage motor started at full voltage shall not be less than # ___ AWG. - correct answer 14 How many AWG #12 THHN conductors are allowed in a 1" RMC nipple? - correct answer 35 wires How many AWG #12 THHN conductors are allowed in a 1" RMC? - correct answer 26 #12 THHN conductors The circular mil area of a #18 AWG would be ___ CMILS for solid or stranded. - correc...
NYC MASTER ELECTRICIAN EXAM questions and 100% correct answers 2024
Type ____ is multiconductor cable identified for use as underground service entrance cable. - correct answer Type USE cable Knife switch rated for more than 1200 Amps at 250Volts or less - correct answer Can be used only as isolating switch, shall not be opened under load Track lighting with outlets in a bathroom is not allowed because ? - correct answer Track lighting has receptacle Where internal combustion engines are used as the prime motor, an on site fuel supply shall be provided ...
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- • 24 pages •
Type ____ is multiconductor cable identified for use as underground service entrance cable. - correct answer Type USE cable Knife switch rated for more than 1200 Amps at 250Volts or less - correct answer Can be used only as isolating switch, shall not be opened under load Track lighting with outlets in a bathroom is not allowed because ? - correct answer Track lighting has receptacle Where internal combustion engines are used as the prime motor, an on site fuel supply shall be provided ...
MASTER ELECTRICIAN TEST 211 exam questions and 100% correct answers 2024
Given: Two separate Services are identical in voltage and amperage, except that one service serves only motor - loads and the other serves lighting loads only. in the event of a short circuit in these services, the available short circuit current will be: A) The same in either service B) Higher in the motor-load service C) Higher in the lighting -load service D) 25% greater in the service for the motor load - correct answer The same in either service (general knowledge) ...
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- • 19 pages •
Given: Two separate Services are identical in voltage and amperage, except that one service serves only motor - loads and the other serves lighting loads only. in the event of a short circuit in these services, the available short circuit current will be: A) The same in either service B) Higher in the motor-load service C) Higher in the lighting -load service D) 25% greater in the service for the motor load - correct answer The same in either service (general knowledge) ...
Master Electrician License exam questions and 100% correct answers 2024
If the cover for an underground pull box used for circuits over 600v is not locked, bolted, or screwed into place, then it must weigh equal to - correct answer 100 pounds The maximum total voltage droop on a branch circuit is - correct answer 3% the floors of vaults in contact with the earth shall be of concrete that is not less then - correct answer 6 inches thick according to the NEC bare live parts are guarded from the public in the following methods except - correct answer protected...
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- Exam (elaborations)
- • 17 pages •
If the cover for an underground pull box used for circuits over 600v is not locked, bolted, or screwed into place, then it must weigh equal to - correct answer 100 pounds The maximum total voltage droop on a branch circuit is - correct answer 3% the floors of vaults in contact with the earth shall be of concrete that is not less then - correct answer 6 inches thick according to the NEC bare live parts are guarded from the public in the following methods except - correct answer protected...
Master Electrician Exam Review questions and complete correct answers 2024
branch circuit - correct answer That portion of a wiring system extending beyond the final overcurrent device is called the: Calculated load - correct answer The final sum of the computed loads, based on the minimum code requirements, is the Resistance - correct answer As compared to #10, a #8 wire of the same Iength has less: 0.001 inch - correct answer One circular mil is the area of a circle whose diameter is: 1,000,000 cm - correct answer A round bus-bar one inch in diameter, has...
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- • 16 pages •
branch circuit - correct answer That portion of a wiring system extending beyond the final overcurrent device is called the: Calculated load - correct answer The final sum of the computed loads, based on the minimum code requirements, is the Resistance - correct answer As compared to #10, a #8 wire of the same Iength has less: 0.001 inch - correct answer One circular mil is the area of a circle whose diameter is: 1,000,000 cm - correct answer A round bus-bar one inch in diameter, has...
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