NM ES-3 ACTUAL EXAM
COMPLETE ACTUAL EXAM 100
QUESTIONS WITH VERIFIED
DETAILED ANSWERS (100%
CORRECT ANSWERS) ALREADY
GRADED A+
"What is the minimum wire size for connecting bells, sirens, or control circuitry? - CORRECT ANSWER=>
18 AWG (NEC 760.49 A)"
"According to NEC class 3 circuits are allowed a minimum wire size of what gauge? - CORRECT
ANSWER=> 18 AWG (NEC 725.179 H)"
"What is the maximum number of supervisory switches permitted to be connected to a actuate a single
transmitter? - CORRECT ANSWER=> 20"
"Type PLTC nonmetallic sheathed shall be a minimum size ___ gauge for class 3 circuits and have an
insulation rating of atleast 300 V - CORRECT ANSWER=> 22 (NEC 725.179 E)"
"A rotary phase converter has a nameplate rating of 28 full load input amps, disregard the exceptions,
what is the minimum ampacity required for the conductor supplying the phase converter? - CORRECT
ANSWER=> "35 (NEC 455.6 A1)"
"What percentage of fill is allowed in a conduit with three conductors? - CORRECT ANSWER=> 40%"
"What is the minimum width of working space requires for electrical equipment that us 48 inches wide?
- CORRECT ANSWER=> 48 inches"
"Optical fiber cables are not required to be listed and marked where the length of the cable within the
building measured from its point of entrance does not exceed ___ and the cable enters the building from
the outside and is terminated in an enclosure. - CORRECT ANSWER=> 50 feet"
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, "Heat detectors used within a family unit must be listed as or approved for not less than ___ spacing? -
CORRECT ANSWER=> 50 Feet (NFPA 72 29.7.3.1)"
"What is the maximum voltage that coaxial cable is allowed to carry - CORRECT ANSWER=> 60 Volts"
"What is the maximum voltage that coax cable can carry? - CORRECT ANSWER=> 60 Volts (NEC 820.15)"
"What would be the maximum vertical spacing for a conductor support in a vertical raceway that has an
18 gauge conductor? - CORRECT ANSWER=> 100 feet"
"A fire alarm system is required where a visible notification device is present when the ambient sound is
greater than ___? - CORRECT ANSWER=> 105 dBA (NFPA 72 18.4.1.1)"
"Eight communication cables run in a CMC underground between 2 24 story buildings what is the
maximum distance between the buildings where lightning protection is NOT required? - CORRECT
ANSWER=> 140 feet"
"When using a phase converter for a fixed load the single phase conductors must have an ampacity not
less than what percentage of the full load current rating of the motor or other load being served where
the input and output voltages are the same - CORRECT ANSWER=> 250%"
"Communication cables shall have a voltage rating of not less than how many volts? - CORRECT
ANSWER=> 300 (NEC 800.179)"
"What is the minimum voltage rating for type FPL cable when used in a fire panel? - CORRECT
ANSWER=> 300 Volts"
"What is the maximum allowable output of the class one power limited circuit? - CORRECT ANSWER=>
1000 Volt Amps"
"If a cable is being installed in an area that is above a suspended ceiling that contains completely
enclosed air ducts what term or word identifies this location? - CORRECT ANSWER=> Accessible"
"When the system has been completed and tested when are the alarm strobes, gas, and heat detectors
checked? - CORRECT ANSWER=> Annually (NFPA 72 14.4.5 Table)"
"In what reference would you find acceptable industry practices for mechanical execution of work
performed on optical fiber cables and raceway - CORRECT ANSWER=> ANSI/NECA/BICSI/568 - 2001"
"Any of the following can impact and change the temperature of conductors and insulation except for: -
CORRECT ANSWER=> Applied voltage to the conductors"
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COMPLETE ACTUAL EXAM 100
QUESTIONS WITH VERIFIED
DETAILED ANSWERS (100%
CORRECT ANSWERS) ALREADY
GRADED A+
"What is the minimum wire size for connecting bells, sirens, or control circuitry? - CORRECT ANSWER=>
18 AWG (NEC 760.49 A)"
"According to NEC class 3 circuits are allowed a minimum wire size of what gauge? - CORRECT
ANSWER=> 18 AWG (NEC 725.179 H)"
"What is the maximum number of supervisory switches permitted to be connected to a actuate a single
transmitter? - CORRECT ANSWER=> 20"
"Type PLTC nonmetallic sheathed shall be a minimum size ___ gauge for class 3 circuits and have an
insulation rating of atleast 300 V - CORRECT ANSWER=> 22 (NEC 725.179 E)"
"A rotary phase converter has a nameplate rating of 28 full load input amps, disregard the exceptions,
what is the minimum ampacity required for the conductor supplying the phase converter? - CORRECT
ANSWER=> "35 (NEC 455.6 A1)"
"What percentage of fill is allowed in a conduit with three conductors? - CORRECT ANSWER=> 40%"
"What is the minimum width of working space requires for electrical equipment that us 48 inches wide?
- CORRECT ANSWER=> 48 inches"
"Optical fiber cables are not required to be listed and marked where the length of the cable within the
building measured from its point of entrance does not exceed ___ and the cable enters the building from
the outside and is terminated in an enclosure. - CORRECT ANSWER=> 50 feet"
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, "Heat detectors used within a family unit must be listed as or approved for not less than ___ spacing? -
CORRECT ANSWER=> 50 Feet (NFPA 72 29.7.3.1)"
"What is the maximum voltage that coaxial cable is allowed to carry - CORRECT ANSWER=> 60 Volts"
"What is the maximum voltage that coax cable can carry? - CORRECT ANSWER=> 60 Volts (NEC 820.15)"
"What would be the maximum vertical spacing for a conductor support in a vertical raceway that has an
18 gauge conductor? - CORRECT ANSWER=> 100 feet"
"A fire alarm system is required where a visible notification device is present when the ambient sound is
greater than ___? - CORRECT ANSWER=> 105 dBA (NFPA 72 18.4.1.1)"
"Eight communication cables run in a CMC underground between 2 24 story buildings what is the
maximum distance between the buildings where lightning protection is NOT required? - CORRECT
ANSWER=> 140 feet"
"When using a phase converter for a fixed load the single phase conductors must have an ampacity not
less than what percentage of the full load current rating of the motor or other load being served where
the input and output voltages are the same - CORRECT ANSWER=> 250%"
"Communication cables shall have a voltage rating of not less than how many volts? - CORRECT
ANSWER=> 300 (NEC 800.179)"
"What is the minimum voltage rating for type FPL cable when used in a fire panel? - CORRECT
ANSWER=> 300 Volts"
"What is the maximum allowable output of the class one power limited circuit? - CORRECT ANSWER=>
1000 Volt Amps"
"If a cable is being installed in an area that is above a suspended ceiling that contains completely
enclosed air ducts what term or word identifies this location? - CORRECT ANSWER=> Accessible"
"When the system has been completed and tested when are the alarm strobes, gas, and heat detectors
checked? - CORRECT ANSWER=> Annually (NFPA 72 14.4.5 Table)"
"In what reference would you find acceptable industry practices for mechanical execution of work
performed on optical fiber cables and raceway - CORRECT ANSWER=> ANSI/NECA/BICSI/568 - 2001"
"Any of the following can impact and change the temperature of conductors and insulation except for: -
CORRECT ANSWER=> Applied voltage to the conductors"
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