Answers | Latest 2026 Update
Q: What is general purpose cable?
Answer:
-Cable for general purpose fire alarm use. Not to be used where plenum cable or riser
cable is required. It is resistant to the spread of fire. Why 'type' shall plenum cable
be? What substitutions are allowed? Power Limited Fire Alarm Plenum (F.P.L.P)
C.M.P can be substituted. What 'type' shall riser cable be? What substitutions are
allowed? -Power Limited fire alarm riser (F.P.L.R) C.M.P, F.P.L.P. C.M.R can be
substituted. What 'type' shall general purpose wire be? What substitutions are
permitted? -Power Limited fire alarm (F.P.L) C.M.P, F.P.L.P, C.M.R, F.P.L.R,
C.M.G CM can be substituted (all types) What is the maximum voltage permitted
through multi-conductor N.P.F.L.A cables? 150 volts What is the voltage rating
marked on P.F.L.A cables? Not less than 300 volts Shall the voltage be marked on
P.F.L.A cables? No, because they may be mistakenly used for electrical applications
,Q: What is a 'Rate Compensation Detector'?
Answer:
A device that responds when a temperature rises at an exceeding rate that is
predetermined. What is a 'Smoke Detector'? A device that detects both visible and
invisible combustion particles. Which detector is best at detecting invisible particles?
Ionization Which sensor is better at detecting thick, visible smoke particles?
Photoelectric What is a SPOT TYPE sensor? A device in which detecting an element
is concentrated at a particular location. What is a DIGITAL ALARM
COMMUNICATOR RECEIVER (D.A.C.R)? A system component that accepts and
displays signals sent over the public phone network from a D.A.C.T (i.e A.D.T
monitoring center) What is a DIGITAL ALARM COMMUNICATOR
TRANSMITTER (D.A.C.T)? A system component at the protected premises is
connected to the detection devices. It has line seizure and can connect to a D.A.C.R.
What is an alarm signal? A signal indicating an emergency that requires immediate
action What is a Supervisory signal? A signal that indicates the need for action in
connection with the SUPERVISION of fire equipment. What is a Trouble signal? A
signal that indicates a fault with the fire equipment. It must have an audible signal,
distinctive from alarm signals
, Q: Does an exterior harm for a sprinkler system need to be supervised?
Answer:
Yes Does a fire hood system and a kitchen need to be monitored by the fire alarm
system? Yes What is Cloud Chamber Smoke detection? A detector that draws an air
sample into a high humidity, low pressure chamber. the conditions 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 an Ionization Smoke detector? A
detector that used a small amount of radio active material to ionize the air between
two differently charged electrodes. When smoke is present between these electrodes,
it causes the conductance of the air to decrease, and this causes the alarm to trip.
What is Photo Electric Light Scattering Smoke Detection? A detector that uses a
light source and a photosensitive sensor, arranged so that light will only fall on the
sensor when smoke particles are present. the particles reflect and retract light towards
the sensor, tripping the alarm. What is important about the way trouble signals
sound? They must be distinctive from alarm signals What three procedures must be
in place before it is permitted to install a means to silence trouble/supervisory/alarm
signals? -The means shall be key operated and contained within a locked enclosure
The means shall transfer it's audible warning to a visual warning. The audible trouble
signal shall sound when the system is set to silent mode and no trouble or
supervisory exists