EliteCEU Advanced Electronic Intrusion
Technician (AEIT) Certification Exam
Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. In an advanced electronic intrusion system, the primary purpose of
placing an end-of-line (EOL) resistor at the field device rather than
inside the control panel is to allow the control panel to distinguish
between a normal closed circuit, an alarm condition, and certain
wiring faults such as an open circuit. If the resistor were incorrectly
installed at the panel, what important diagnostic capability would be
lost?
A. The panel would no longer be able to provide auxiliary power to the
detector
B. The panel would be unable to distinguish a field-wire short or bypass from
the intended supervised circuit condition
C. The detector would automatically change from normally closed to
,normally open operation
D. The keypad would lose its ability to display the programmed user code
B. The panel would be unable to distinguish a field-wire short or bypass
from the intended supervised circuit condition
An EOL resistor located at the end of the protected circuit allows the panel
to supervise the entire wiring path. Installing it at the panel can leave the
field wiring effectively unsupervised because a short or alteration in the
field may still appear electrically normal to the control panel.
2. A technician is calculating the voltage drop on a long low-voltage
security circuit supplying a detector located substantially farther from
the control panel than the other devices. The detector requires a
minimum operating voltage specified by the manufacturer. Which
engineering consideration is most important when selecting the
conductor size?
A. The conductor should be selected only according to the maximum alarm
current of the panel
B. The conductor should be selected so that voltage at the remote device
remains within the manufacturer's specified operating range under the
expected load
C. The smallest conductor available should always be selected because
,security circuits operate at low voltage
D. Wire resistance is irrelevant when the nominal panel voltage is 12 VDC
B. The conductor should be selected so that voltage at the remote device
remains within the manufacturer's specified operating range under the
expected load
Voltage drop increases with conductor resistance and current. Proper
conductor sizing ensures that the remote device receives adequate voltage
during normal and worst-case operating conditions.
3. A 12 VDC intrusion system contains a resistive load drawing 0.5 A.
Using Ohm's law, what is the approximate resistance of the load under
those operating conditions?
A. 6 ohms
B. 12 ohms
C. 24 ohms
D. 48 ohms
C. 24 ohms
Ohm's law states that R = V ÷ I. Therefore, 12 V ÷ 0.5 A equals 24 ohms.
4. A technician encounters a circuit in which the measured resistance is
substantially higher than the value expected from the installed EOL
, resistor. Assuming the meter is functioning correctly, which condition
should be investigated first?
A. An unintended open connection, corroded termination, or high-resistance
connection in the circuit
B. An excessive auxiliary-current output from the control panel
C. A properly functioning closed-loop circuit with no wiring abnormalities
D. A short circuit across the EOL resistor
A. An unintended open connection, corroded termination, or high-
resistance connection in the circuit
A resistance reading substantially above the expected supervised value can
indicate added resistance caused by poor connections, corrosion, damaged
conductors, or an open circuit that prevents the expected current path.
5. When converting alternating current (AC) to direct current (DC) for use
by an electronic intrusion control panel, which sequence most
accurately represents the fundamental power-conversion process in a
conventional system?
A. Rectification, transformation, filtering, and regulation as applicable
B. Filtering, alarming, detection, and grounding
C. Detection, rectification, programming, and monitoring
D. Regulation, EOL supervision, detection, and transformation
Technician (AEIT) Certification Exam
Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. In an advanced electronic intrusion system, the primary purpose of
placing an end-of-line (EOL) resistor at the field device rather than
inside the control panel is to allow the control panel to distinguish
between a normal closed circuit, an alarm condition, and certain
wiring faults such as an open circuit. If the resistor were incorrectly
installed at the panel, what important diagnostic capability would be
lost?
A. The panel would no longer be able to provide auxiliary power to the
detector
B. The panel would be unable to distinguish a field-wire short or bypass from
the intended supervised circuit condition
C. The detector would automatically change from normally closed to
,normally open operation
D. The keypad would lose its ability to display the programmed user code
B. The panel would be unable to distinguish a field-wire short or bypass
from the intended supervised circuit condition
An EOL resistor located at the end of the protected circuit allows the panel
to supervise the entire wiring path. Installing it at the panel can leave the
field wiring effectively unsupervised because a short or alteration in the
field may still appear electrically normal to the control panel.
2. A technician is calculating the voltage drop on a long low-voltage
security circuit supplying a detector located substantially farther from
the control panel than the other devices. The detector requires a
minimum operating voltage specified by the manufacturer. Which
engineering consideration is most important when selecting the
conductor size?
A. The conductor should be selected only according to the maximum alarm
current of the panel
B. The conductor should be selected so that voltage at the remote device
remains within the manufacturer's specified operating range under the
expected load
C. The smallest conductor available should always be selected because
,security circuits operate at low voltage
D. Wire resistance is irrelevant when the nominal panel voltage is 12 VDC
B. The conductor should be selected so that voltage at the remote device
remains within the manufacturer's specified operating range under the
expected load
Voltage drop increases with conductor resistance and current. Proper
conductor sizing ensures that the remote device receives adequate voltage
during normal and worst-case operating conditions.
3. A 12 VDC intrusion system contains a resistive load drawing 0.5 A.
Using Ohm's law, what is the approximate resistance of the load under
those operating conditions?
A. 6 ohms
B. 12 ohms
C. 24 ohms
D. 48 ohms
C. 24 ohms
Ohm's law states that R = V ÷ I. Therefore, 12 V ÷ 0.5 A equals 24 ohms.
4. A technician encounters a circuit in which the measured resistance is
substantially higher than the value expected from the installed EOL
, resistor. Assuming the meter is functioning correctly, which condition
should be investigated first?
A. An unintended open connection, corroded termination, or high-resistance
connection in the circuit
B. An excessive auxiliary-current output from the control panel
C. A properly functioning closed-loop circuit with no wiring abnormalities
D. A short circuit across the EOL resistor
A. An unintended open connection, corroded termination, or high-
resistance connection in the circuit
A resistance reading substantially above the expected supervised value can
indicate added resistance caused by poor connections, corrosion, damaged
conductors, or an open circuit that prevents the expected current path.
5. When converting alternating current (AC) to direct current (DC) for use
by an electronic intrusion control panel, which sequence most
accurately represents the fundamental power-conversion process in a
conventional system?
A. Rectification, transformation, filtering, and regulation as applicable
B. Filtering, alarming, detection, and grounding
C. Detection, rectification, programming, and monitoring
D. Regulation, EOL supervision, detection, and transformation
