CHAPTER 2 Electromagnetic
Compatibility Exam 2025 Questions
and Answers
Define electromagnetic compatibility as it relates to telecommunications. -
ANSWER✔✔-The ability of a device, equipment, or system to operate properly in its
intended electromagnetic environment without introducing significant electromagnetic
interference into the environment
Define electromagnetic interference. - ANSWER✔✔-The transfer of electromagnetic
energy from one device or system to another device or system operating in the same
environment that causes interference with the normal operation of devices or systems
When does the potential for EMI increase? - ANSWER✔✔-When two devices or
systems share a common electromagnetic environment and their operations frequencies
overlap
Name the 4 mechanisms through which coupling between two circuits can occur. -
ANSWER✔✔-1. Conductive coupling
, 2. Inductive coupling
3. Capacitive coupling
4. Electromagnetic coupling
What type of coupling may occur when a common ac branch circuit is shared between
two devices? - ANSWER✔✔-Conductive coupling
What causes inductive coupling? - ANSWER✔✔-Magnetic fields
What causes capacitive coupling? - ANSWER✔✔-Electric fields
Name 3 essential elements of any EMC problem. - ANSWER✔✔-1. Source of
electromagnetic interference (EMI)
2. Susceptible device or system that cannot perform as designed
3. Coupling path that promotes the disturbance
What types of energy are included in the electromagnetic spectrum? - ANSWER✔✔-
Light
Radio Waves
Microwaves
IR radiation
Ultraviolet rays
Compatibility Exam 2025 Questions
and Answers
Define electromagnetic compatibility as it relates to telecommunications. -
ANSWER✔✔-The ability of a device, equipment, or system to operate properly in its
intended electromagnetic environment without introducing significant electromagnetic
interference into the environment
Define electromagnetic interference. - ANSWER✔✔-The transfer of electromagnetic
energy from one device or system to another device or system operating in the same
environment that causes interference with the normal operation of devices or systems
When does the potential for EMI increase? - ANSWER✔✔-When two devices or
systems share a common electromagnetic environment and their operations frequencies
overlap
Name the 4 mechanisms through which coupling between two circuits can occur. -
ANSWER✔✔-1. Conductive coupling
, 2. Inductive coupling
3. Capacitive coupling
4. Electromagnetic coupling
What type of coupling may occur when a common ac branch circuit is shared between
two devices? - ANSWER✔✔-Conductive coupling
What causes inductive coupling? - ANSWER✔✔-Magnetic fields
What causes capacitive coupling? - ANSWER✔✔-Electric fields
Name 3 essential elements of any EMC problem. - ANSWER✔✔-1. Source of
electromagnetic interference (EMI)
2. Susceptible device or system that cannot perform as designed
3. Coupling path that promotes the disturbance
What types of energy are included in the electromagnetic spectrum? - ANSWER✔✔-
Light
Radio Waves
Microwaves
IR radiation
Ultraviolet rays
