New Mexico ES-3J Journeyman Low Voltage Special Systems Exam QUESTIONS AND
CORRECT ANSWERS WITH RATIONALES
Exam coverage
• low-voltage circuits
• alarm systems
• intercommunication
• sound systems
• power limitations
• cabling
• termination
• testing
• documentation
• safety
,1. An inspection reveals this condition; which action is supported by the principle that
Low-voltage special systems use controlled signaling and power levels appropriate to
the system design.. Which answer best applies to the underlying ES-3J low voltage
special systems concept in this situation?
A. Sound systems depend on correct signal paths, amplifiers, speakers, and wiring..
B. Intercommunication systems transmit voice or data signals between designated locations..
C. Low-voltage special systems use controlled signaling and power levels appropriate to the
system design..
D. Alarm systems require suitable initiating devices, notification appliances, control equipment,
and wiring..
Correct answer: C
Rationale: The correct choice directly states the governing principle: Low-voltage special
systems use controlled signaling and power levels appropriate to the system design.. The
alternatives address related topics but do not directly answer the issue being tested.
2. Which option demonstrates the most accurate understanding of how Alarm systems
require suitable initiating devices, notification appliances, control equipment, and
wiring.. Which answer best applies to the underlying ES-3J low voltage special systems
concept in this situation?
A. Power limitations affect conductor selection, circuit design, and equipment compatibility..
B. Intercommunication systems transmit voice or data signals between designated locations..
,C. Alarm systems require suitable initiating devices, notification appliances, control equipment,
and wiring..
D. Sound systems depend on correct signal paths, amplifiers, speakers, and wiring..
Correct answer: C
Rationale: The correct choice directly states the governing principle: Alarm systems require
suitable initiating devices, notification appliances, control equipment, and wiring.. The
alternatives address related topics but do not directly answer the issue being tested.
3. When diagnosing or planning work, which statement is most accurate about
Intercommunication systems transmit voice or data signals between designated
locations.. Which answer best applies to the underlying ES-3J low voltage special
systems concept in this situation?
A. Cabling should be routed and supported to reduce damage and unwanted interference..
B. Intercommunication systems transmit voice or data signals between designated locations..
C. Power limitations affect conductor selection, circuit design, and equipment compatibility..
D. Sound systems depend on correct signal paths, amplifiers, speakers, and wiring..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Intercommunication
systems transmit voice or data signals between designated locations.. The alternatives
address related topics but do not directly answer the issue being tested.
, 4. Which statement most accurately explains the principle involved when Sound
systems depend on correct signal paths, amplifiers, speakers, and wiring.. Which
answer best applies to the underlying ES-3J low voltage special systems concept in
this situation?
A. Power limitations affect conductor selection, circuit design, and equipment compatibility..
B. Sound systems depend on correct signal paths, amplifiers, speakers, and wiring..
C. Terminations must be secure and correctly identified to maintain circuit integrity..
D. Cabling should be routed and supported to reduce damage and unwanted interference..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Sound systems depend
on correct signal paths, amplifiers, speakers, and wiring.. The alternatives address related
topics but do not directly answer the issue being tested.
5. During a service situation, which option best describes why Power limitations affect
conductor selection, circuit design, and equipment compatibility.. Which answer best
applies to the underlying ES-3J low voltage special systems concept in this situation?
A. Cabling should be routed and supported to reduce damage and unwanted interference..
B. Testing verifies operation, continuity, signaling, and system functions..
C. Terminations must be secure and correctly identified to maintain circuit integrity..
D. Power limitations affect conductor selection, circuit design, and equipment compatibility..
Correct answer: D
CORRECT ANSWERS WITH RATIONALES
Exam coverage
• low-voltage circuits
• alarm systems
• intercommunication
• sound systems
• power limitations
• cabling
• termination
• testing
• documentation
• safety
,1. An inspection reveals this condition; which action is supported by the principle that
Low-voltage special systems use controlled signaling and power levels appropriate to
the system design.. Which answer best applies to the underlying ES-3J low voltage
special systems concept in this situation?
A. Sound systems depend on correct signal paths, amplifiers, speakers, and wiring..
B. Intercommunication systems transmit voice or data signals between designated locations..
C. Low-voltage special systems use controlled signaling and power levels appropriate to the
system design..
D. Alarm systems require suitable initiating devices, notification appliances, control equipment,
and wiring..
Correct answer: C
Rationale: The correct choice directly states the governing principle: Low-voltage special
systems use controlled signaling and power levels appropriate to the system design.. The
alternatives address related topics but do not directly answer the issue being tested.
2. Which option demonstrates the most accurate understanding of how Alarm systems
require suitable initiating devices, notification appliances, control equipment, and
wiring.. Which answer best applies to the underlying ES-3J low voltage special systems
concept in this situation?
A. Power limitations affect conductor selection, circuit design, and equipment compatibility..
B. Intercommunication systems transmit voice or data signals between designated locations..
,C. Alarm systems require suitable initiating devices, notification appliances, control equipment,
and wiring..
D. Sound systems depend on correct signal paths, amplifiers, speakers, and wiring..
Correct answer: C
Rationale: The correct choice directly states the governing principle: Alarm systems require
suitable initiating devices, notification appliances, control equipment, and wiring.. The
alternatives address related topics but do not directly answer the issue being tested.
3. When diagnosing or planning work, which statement is most accurate about
Intercommunication systems transmit voice or data signals between designated
locations.. Which answer best applies to the underlying ES-3J low voltage special
systems concept in this situation?
A. Cabling should be routed and supported to reduce damage and unwanted interference..
B. Intercommunication systems transmit voice or data signals between designated locations..
C. Power limitations affect conductor selection, circuit design, and equipment compatibility..
D. Sound systems depend on correct signal paths, amplifiers, speakers, and wiring..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Intercommunication
systems transmit voice or data signals between designated locations.. The alternatives
address related topics but do not directly answer the issue being tested.
, 4. Which statement most accurately explains the principle involved when Sound
systems depend on correct signal paths, amplifiers, speakers, and wiring.. Which
answer best applies to the underlying ES-3J low voltage special systems concept in
this situation?
A. Power limitations affect conductor selection, circuit design, and equipment compatibility..
B. Sound systems depend on correct signal paths, amplifiers, speakers, and wiring..
C. Terminations must be secure and correctly identified to maintain circuit integrity..
D. Cabling should be routed and supported to reduce damage and unwanted interference..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Sound systems depend
on correct signal paths, amplifiers, speakers, and wiring.. The alternatives address related
topics but do not directly answer the issue being tested.
5. During a service situation, which option best describes why Power limitations affect
conductor selection, circuit design, and equipment compatibility.. Which answer best
applies to the underlying ES-3J low voltage special systems concept in this situation?
A. Cabling should be routed and supported to reduce damage and unwanted interference..
B. Testing verifies operation, continuity, signaling, and system functions..
C. Terminations must be secure and correctly identified to maintain circuit integrity..
D. Power limitations affect conductor selection, circuit design, and equipment compatibility..
Correct answer: D
