NM ES3J | Questions with 100% Verified Answers | Latest Update 2026/2027

NM ES3J | Questions with 100% Verified Answers | Latest
Update 2026/2027
Question: NFPA 72
Answer: What is the NFPA code that refers to household firefighting equipment?

Question: 22 (NEC 725.179 E)
Answer: Type PLTC nonmetallic sheathed shall be a minimum size ___ gauge for class 3 circuits and have an
insulation rating of atleast 300 V

Question: Grounding Connection
Answer: What is the function of a green wire in a manufactured home?

Question: 2 Feet
Answer: What is the minimum required clearance between a receiving antenna and 250 volt line not insulated?

Question: 20
Answer: What is the maximum number of supervisory switches permitted to be connected to a actuate a single
transmitter?

Question: 18 (NEC 725.179 H)
Answer: According to NEC class 3 circuits are allowed a minimum wire size of what gauge?

Question: 8 Feet NEC 250.5.2.5
Answer: What is the minimum length of a grounding rod in an application of less than 50 volts?

Question: Wooden plugs
Answer: According to the NEC electrical equipment may not be mounted to concrete, cinder block, or brick
walls with one of these___.

Question: 300 (NEC 800.179)
Answer: Communication cables shall have a voltage rating of not less than how many volts?

Question: Connected (NEC 550.16)
Answer: In a manufactured home the grounding bus shall be ___ through the green color insulated conductor in
the supply cord or the feeder wiring to the service ground in the service equipment located adjacent to the
mobile home.

Question: 2 (NFPA 72 18.5.2.1)
Answer: what is the maximum blink rate on a strobe light per second?

Question: 10 foot gas pipe (NEC 250.5.2 A)
Answer: All of the following is acceptable as a ground except?

Question: 1 1/4 inches (NEC 300.4 A 1)
Answer: What is the minimum clearance to the edge of a wood stud for a wire hole?

, Question: 2 Feet (NEC 810.13)
Answer: The minimum clearance for an antenna to other conductors is?

Question: 2
Answer: A basic alarm system will have __ power sources

Question: 60 Volts (NEC 820.15)
Answer: What is the maximum voltage that coax cable can carry?

Question: 50 Feet (NFPA 72 29.7.3.1)
Answer: Heat detectors used within a family unit must be listed as or approved for not less than ___ spacing?

Question: 3 hours
Answer: The NEC classifies Continuous Load as equipment running at a maximum load of __ ____?

Question: Class ll Division 1 (NEC 500.5 C1)
Answer: Determine the class and division for which location in which sufficient quantities of combustible dust
are normally present in the air to produce explosive mixtures.

Question: On the centerline of a doorway
Answer: Given: a smoke detection system is being installed to automatically close a double doorway in
response to smoke blowing in either direction, the ceiling is smooth. Where must the smoke detector be
installed?

Question: Bottom of the beam
Answer: On a beam ceiling where the beams are less than 12 inches in depth and spacing is less than 96
inches where should the smoke detectors be mounted?

Question: Safe Electrical Installation
Answer: The purpose of NEC is to provide?

Question: Boxes or Junction Boxes
Answer: Where are splices allowed in conductors in surface metal raceways if they do not have removable
covers?

Question: UF (NEC 340.10)
Answer: What type of wire is used for common direct burial?

Question: 2 NFPA 72 24.4.1.2.1
Answer: On a voice alarm system what is the minimum number of cycles it has to report an evacuation
procedure?

Question: Heat Detector
Answer: What is the detector that is mounted on the ceiling or wall that reacts to convected thermal reaction?

Question: Proprietary System
Answer: What is a privately owned and monitored alarm system classified as?