AR SEC Security Systems Contractor Exam
Questions and Correct Answers (Verified
Answers) Plus Rationale 2027 Q&A|
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1. What is the primary purpose of an electronic security system?
A. To eliminate the need for physical security personnel
B. To guarantee that unauthorized entry is impossible
C. To detect, deter, monitor, or report security-related events
D. To replace all building safety systems
Rationale: Electronic security systems help protect people, property,
and assets by detecting unauthorized access, monitoring activity, and
communicating alarms or other events. They support physical security
measures but cannot guarantee that all security incidents will be
prevented.
,2. Which component detects movement within a protected interior
area using changes in infrared energy?
A. Magnetic door contact
B. Passive infrared (PIR) motion detector
C. Glass-break transmitter
D. Electric strike
Rationale: A passive infrared detector senses changes in infrared
energy emitted by objects within its detection field. Moving people
typically create changes in the thermal pattern that trigger an alarm.
PIR detectors do not transmit infrared energy to detect motion; they
passively monitor it.
3. What is the primary function of a magnetic door contact?
A. To measure the temperature of a doorway
B. To unlock a door automatically
C. To detect the opening or closing of a door or window
D. To identify a person's fingerprint
Rationale: A magnetic contact typically consists of a magnet and a
reed switch. When the door or window moves away from its closed
position, the magnetic field changes and the switch changes state.
,The security panel monitors this change to determine whether the
opening has been disturbed.
4. Which device is commonly used to detect the sound pattern
associated with breaking glass?
A. Ultrasonic transmitter
B. Magnetic contact
C. Acoustic glass-break detector
D. Electric door closer
Rationale: An acoustic glass-break detector analyzes sound
characteristics associated with breaking glass. Depending on its
design, it may recognize specific frequencies or sound patterns.
Correct placement, sensitivity adjustment, and functional testing are
essential to reduce missed detections and nuisance alarms.
5. What is the primary purpose of an intrusion alarm control panel?
A. To supply water to fire sprinklers
B. To physically prevent every door from opening
C. To receive sensor signals, process system conditions, and initiate
programmed responses
D. To provide lighting throughout a building
, Rationale: The control panel is the central processing unit of an
intrusion alarm system. It receives signals from sensors and other
devices, evaluates their conditions according to programming, and
activates outputs such as sirens, keypads, or alarm communication
equipment.
6. What does a normally closed (NC) alarm circuit generally indicate
when the system is in its normal, undisturbed condition?
A. The circuit is intentionally disconnected
B. The electrical circuit is complete
C. The alarm panel has no power
D. The sensor is permanently bypassed
Rationale: In a conventional normally closed circuit, the contacts
remain electrically closed during normal conditions. Opening the
circuit can indicate an alarm or trouble condition, depending on the
wiring and programming. The technician must understand the specific
circuit design because supervision methods can vary.
7. What is the purpose of an end-of-line resistor in a supervised alarm
circuit?
A. To increase the voltage supplied to the siren
Questions and Correct Answers (Verified
Answers) Plus Rationale 2027 Q&A|
Instant Download Pdf
1. What is the primary purpose of an electronic security system?
A. To eliminate the need for physical security personnel
B. To guarantee that unauthorized entry is impossible
C. To detect, deter, monitor, or report security-related events
D. To replace all building safety systems
Rationale: Electronic security systems help protect people, property,
and assets by detecting unauthorized access, monitoring activity, and
communicating alarms or other events. They support physical security
measures but cannot guarantee that all security incidents will be
prevented.
,2. Which component detects movement within a protected interior
area using changes in infrared energy?
A. Magnetic door contact
B. Passive infrared (PIR) motion detector
C. Glass-break transmitter
D. Electric strike
Rationale: A passive infrared detector senses changes in infrared
energy emitted by objects within its detection field. Moving people
typically create changes in the thermal pattern that trigger an alarm.
PIR detectors do not transmit infrared energy to detect motion; they
passively monitor it.
3. What is the primary function of a magnetic door contact?
A. To measure the temperature of a doorway
B. To unlock a door automatically
C. To detect the opening or closing of a door or window
D. To identify a person's fingerprint
Rationale: A magnetic contact typically consists of a magnet and a
reed switch. When the door or window moves away from its closed
position, the magnetic field changes and the switch changes state.
,The security panel monitors this change to determine whether the
opening has been disturbed.
4. Which device is commonly used to detect the sound pattern
associated with breaking glass?
A. Ultrasonic transmitter
B. Magnetic contact
C. Acoustic glass-break detector
D. Electric door closer
Rationale: An acoustic glass-break detector analyzes sound
characteristics associated with breaking glass. Depending on its
design, it may recognize specific frequencies or sound patterns.
Correct placement, sensitivity adjustment, and functional testing are
essential to reduce missed detections and nuisance alarms.
5. What is the primary purpose of an intrusion alarm control panel?
A. To supply water to fire sprinklers
B. To physically prevent every door from opening
C. To receive sensor signals, process system conditions, and initiate
programmed responses
D. To provide lighting throughout a building
, Rationale: The control panel is the central processing unit of an
intrusion alarm system. It receives signals from sensors and other
devices, evaluates their conditions according to programming, and
activates outputs such as sirens, keypads, or alarm communication
equipment.
6. What does a normally closed (NC) alarm circuit generally indicate
when the system is in its normal, undisturbed condition?
A. The circuit is intentionally disconnected
B. The electrical circuit is complete
C. The alarm panel has no power
D. The sensor is permanently bypassed
Rationale: In a conventional normally closed circuit, the contacts
remain electrically closed during normal conditions. Opening the
circuit can indicate an alarm or trouble condition, depending on the
wiring and programming. The technician must understand the specific
circuit design because supervision methods can vary.
7. What is the purpose of an end-of-line resistor in a supervised alarm
circuit?
A. To increase the voltage supplied to the siren
