NM ES-3 EXAM 2026 COMPLETE QUESTIONS
AND SOLUTIONS GRADED A+
◉ What is the minimum separation between a class 1 fire alarm
circuit conductor and a class 2 or class 3 circuit? Answer: 1/4 inch
◉ A basic alarm system will have __ power sources. Answer: 2
◉ What is the minimum required clearance between a receiving
antenna and 250 volt line not insulated? Answer: 2 Feet
◉ The minimum clearance for an antenna to other conductors is?
Answer: 2 Feet (NEC 810.13)
◉ How far away must communications cables be from electric, light,
or power conductors Answer: 2 inches
◉ what is the maximum blink rate on a strobe light per second?
Answer: 2 (NFPA 72 18.5.2.1)
◉ On a voice alarm system what is the minimum number of cycles it
has to report an evacuation procedure? Answer: 2 (NFPA 72
24.4.1.2.1)
, ◉ What is the minimum required height for a propriety manual pull
fire alarm? Answer: 3 1/2 feet or 42 inches
◉ An overhead feeder must have a clearance of __ from chimneys,
radio, and television antennas. Answer: 3 Feet (NEC 225.19 B)
◉ The NEC classifies Continuous Load as equipment running at a
maximum load of __ ____? Answer: 3 hours
◉ 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? Answer: 3 hours or more
◉ The minimum head room of working space above service
equipment, switchboards, panel boards, or motor control centers
shall be at least: Answer: 6.5 feet
◉ What is the minimum required separation between
communication cables and lighting conductors? Answer: 6 feet
◉ What is the minimum separation required between coaxial cable
in a CATV system and lighting conductors Answer: 6 feet
AND SOLUTIONS GRADED A+
◉ What is the minimum separation between a class 1 fire alarm
circuit conductor and a class 2 or class 3 circuit? Answer: 1/4 inch
◉ A basic alarm system will have __ power sources. Answer: 2
◉ What is the minimum required clearance between a receiving
antenna and 250 volt line not insulated? Answer: 2 Feet
◉ The minimum clearance for an antenna to other conductors is?
Answer: 2 Feet (NEC 810.13)
◉ How far away must communications cables be from electric, light,
or power conductors Answer: 2 inches
◉ what is the maximum blink rate on a strobe light per second?
Answer: 2 (NFPA 72 18.5.2.1)
◉ On a voice alarm system what is the minimum number of cycles it
has to report an evacuation procedure? Answer: 2 (NFPA 72
24.4.1.2.1)
, ◉ What is the minimum required height for a propriety manual pull
fire alarm? Answer: 3 1/2 feet or 42 inches
◉ An overhead feeder must have a clearance of __ from chimneys,
radio, and television antennas. Answer: 3 Feet (NEC 225.19 B)
◉ The NEC classifies Continuous Load as equipment running at a
maximum load of __ ____? Answer: 3 hours
◉ 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? Answer: 3 hours or more
◉ The minimum head room of working space above service
equipment, switchboards, panel boards, or motor control centers
shall be at least: Answer: 6.5 feet
◉ What is the minimum required separation between
communication cables and lighting conductors? Answer: 6 feet
◉ What is the minimum separation required between coaxial cable
in a CATV system and lighting conductors Answer: 6 feet
