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NM ES-3 Test (New Mexico Low Voltage Journeyman) Questions With Complete Solutions
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NM ES-3 Test (New Mexico Low Voltage Journeyman) Questions With Complete Solutions
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NM ES-3 Test1.What is the minimum clearance to the edge of a wood stud for a wire hole?: ans- 1
1/4 inches(NEC 300.4 A 1)
2.What is the minimum separation between a class 1 fire alarm circuit conduc- tor and
a class 2 or class 3 circuit?: ans- 1/4 inch
3. A basic alarm system will have power sources.: ans- 2
4. What is the minimum required clearance between a receiving antenna and 250 volt
line not insulated?: 2 Feet
5. The minimum clearance for an antenna to other conductors is?: ans- 2 Feet (NEC
810.13)
6. How far away must communications cables be from electric, light, or power
conductors: ans- 2 inches
7. what is the maximum blink rate on a strobe light per second?: ans- 2 (NFPA 72
18.5.2.1)
8. On a voice alarm system what is the minimum number of cycles it has to report an
evacuation procedure?: ans- 2 (NFPA 72 24.4.1.2.1)
9. What is the minimum required height for a propriety manual pull fire alarm?-
: 3 1/2 feet or 42 inches
10.An overhead feeder must have a clearance of from chimneys, radio, and
television antennas.: ans- 3 Feet (NEC 225.19 B)
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, 11.The NEC classifies Continuous Load as equipment running at a maximum load of
?: 3 hours
12.A continuous load is a load where the maximum current is expected to continue for
a certain length of time. This amount of time is?: 3 hours or more
13.The minimum head room of working space above service equipment, switchboards,
panel boards, or motor control centers shall be at least:: 6.5 feet
14.What is the minimum required separation between communication cables and
lighting conductors?: 6 feet
15.What is the minimum separation required between coaxial cable in a CATV system
and lighting conductors: 6 feet
16.On a radio antenna receiving station what is the minimum clearance between
lead-in conductors and conductors forming a part of a lightning protection
system?: 6 feet
17.What is the minimum length of a grounding rod in an application of less than 50
volts?: 8 Feet (NEC 250.5.2.5)
18.Utility owned low-voltage communication, radio, and television coaxial cables
may pass directly over a pool if at a minimum height of:: 10 feet
19.All of the following is acceptable as a ground except?: 10 foot gas pipe (NEC
250.5.2 A)
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