TFM 12 FIRE ALARM STUDY QUESTIONS
2026 COMPLETE ANSWERS OFFERED
◉ Which sensor is best at detecting invisible smoke particles?
Answer: Ionization
◉ Which sensor is best at detecting thick, visible smoke particles?
Answer: Photoelectric
◉ What is a Spot Type Detector? Answer: A device in which the
detecting element is concentrated at particular location.
◉ What is a Digital Alarm Communicator Receiver? (DACR)
Answer: a system component that accepts and displays signals sent
over the public phone network from a DACT. (Le. ADT Monitoring
center)
◉ What is a Digital Alarm Transmitter? (DACT) Answer: A system
component at the protected premises is connected to the detection
devices. It has line seizure and can connect to a DACR. (le. DSC
Impassa)
◉ What is an Alarm Signal? Answer: A signal indicating an
emergency that requires immediate action.
, ◉ What is a supervisory signal? Answer: A signal that indicates the
need for action in connection with the SUPERVISION of the fire
equipment.
◉ What is a trouble signal? Answer: A signal that indicates a FAULT
with the fire equipment. It must have an audible signal, distinctive
form alarm signals.
◉ Does an exterior horn for a sprinkler system need to be
supervised? Answer: Yes
◉ Does a fire hood sprinkler system in a kitchen need to be
monitored by the fire alarm system? Answer: Yes
◉ What is a cloud chamber smoke detection? Answer: A detector that
draws an air sample into high-humidity, low pressure chamber. The
condition in the chamber cause the moisture in the air to condense on
the smoke particles, forming a cloud. The density of this cloud is
measured by a photoelectric principle, if it meets a certain criteria, an
alarm is generated.
◉ What is a ionization smoke detector? Answer: A detector that uses
a small amount of radioactive material to ionize the air between two
differently charge electrodes. When smoke is present between these
electrodes, it causes the conductance of the air to decrease, and this
causes the alarm to trip.
2026 COMPLETE ANSWERS OFFERED
◉ Which sensor is best at detecting invisible smoke particles?
Answer: Ionization
◉ Which sensor is best at detecting thick, visible smoke particles?
Answer: Photoelectric
◉ What is a Spot Type Detector? Answer: A device in which the
detecting element is concentrated at particular location.
◉ What is a Digital Alarm Communicator Receiver? (DACR)
Answer: a system component that accepts and displays signals sent
over the public phone network from a DACT. (Le. ADT Monitoring
center)
◉ What is a Digital Alarm Transmitter? (DACT) Answer: A system
component at the protected premises is connected to the detection
devices. It has line seizure and can connect to a DACR. (le. DSC
Impassa)
◉ What is an Alarm Signal? Answer: A signal indicating an
emergency that requires immediate action.
, ◉ What is a supervisory signal? Answer: A signal that indicates the
need for action in connection with the SUPERVISION of the fire
equipment.
◉ What is a trouble signal? Answer: A signal that indicates a FAULT
with the fire equipment. It must have an audible signal, distinctive
form alarm signals.
◉ Does an exterior horn for a sprinkler system need to be
supervised? Answer: Yes
◉ Does a fire hood sprinkler system in a kitchen need to be
monitored by the fire alarm system? Answer: Yes
◉ What is a cloud chamber smoke detection? Answer: A detector that
draws an air sample into high-humidity, low pressure chamber. The
condition in the chamber cause the moisture in the air to condense on
the smoke particles, forming a cloud. The density of this cloud is
measured by a photoelectric principle, if it meets a certain criteria, an
alarm is generated.
◉ What is a ionization smoke detector? Answer: A detector that uses
a small amount of radioactive material to ionize the air between two
differently charge electrodes. When smoke is present between these
electrodes, it causes the conductance of the air to decrease, and this
causes the alarm to trip.
