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Nm Es-3 Test (Actual / ) 95 Questions And 100% Verified Answers
What is the minimum clearance to the edge of a wood stud for a wire hole?
- 1/4 inches(NEC 300.4 A 1)
What is the minimum separation between a class 1 fire alarm circuit conductor and a class 2 or class 3 circuit?1/4 inch
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.50 feet
Heat detectors used within a family unit must be listed as or approved for not less than ___ spacing?50 Feet (NFPA 72 29.7.3.1)
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What is the maximum voltage that coaxial cable is allowed to carry 60 Volts
What is the maximum voltage that coax cable can carry?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?100 feet
A fire alarm system is required where a visible notification device is present when the ambient sound is greater than ___?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?140 feet
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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 250%
Communication cables shall have a voltage rating of not less than how many volts?
300 (NEC 800.179)
What is the minimum voltage rating for type FPL cable when used in a fire panel?300 Volts
What is the maximum allowable output of the class one power limited circuit?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?
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