NICET 3 Troubleshooting Question
and answers already passed
2025/2026
Fire alarm systems may suffer from "ghost" malfunctions that may or may not be intermittent. This
usually means the field wiring may be too close to a _____________ ________ caused by an alternating
current. - correct answer ✔magnetic field.
In order to diagnose and repair the systems, it is imperative that you have knowledge of the following:
(Select all that apply)
A.Electrical theory.
B. The operation of the specific system
C. Support of the AHJ - correct answer ✔Electrical theory
The operation of the specific system
Using the system's input/output matrix (if available) can be an invaluable tool while ___________ any
system.
The matrix will provide you with information to let you know exactly what your system should do or not
do. - correct answer ✔troubleshooting.
Refer to NFPA 72 2016, Figure A.14.6.2.4 Typical Input/Output Matrix
A short circuit can be defined as an electrical circuit of lower ___________ than that of a normal circuit,
typically resulting from the unintended contact of components and consequent accidental diversion of
the ___________. - correct answer ✔resistance.
and answers already passed
2025/2026
Fire alarm systems may suffer from "ghost" malfunctions that may or may not be intermittent. This
usually means the field wiring may be too close to a _____________ ________ caused by an alternating
current. - correct answer ✔magnetic field.
In order to diagnose and repair the systems, it is imperative that you have knowledge of the following:
(Select all that apply)
A.Electrical theory.
B. The operation of the specific system
C. Support of the AHJ - correct answer ✔Electrical theory
The operation of the specific system
Using the system's input/output matrix (if available) can be an invaluable tool while ___________ any
system.
The matrix will provide you with information to let you know exactly what your system should do or not
do. - correct answer ✔troubleshooting.
Refer to NFPA 72 2016, Figure A.14.6.2.4 Typical Input/Output Matrix
A short circuit can be defined as an electrical circuit of lower ___________ than that of a normal circuit,
typically resulting from the unintended contact of components and consequent accidental diversion of
the ___________. - correct answer ✔resistance.
