Turbine fire protection Flashcards
What’s FAR Part 147?
Aviation Maintenance Technician School
Single loop thermal systems operate on the ______ detection system
Spot
What would be the best fire extinguishing agent today, to use for an intake fire?
Carbon Dioxide / CO2
A bimetallic thermoswitch is used in what type of detector?
spot fire detection
Electrically discharged cartridges in a HRD system are used on what type of aircraft?
multi-engine
A continuous loop fire detection system would be classified as what?
overheat system
Pulling the fire handle on a typical large transport jet A/C normally does what?
*uncovers bottle discharge switch
* disconnects the generator field relay
* stops the flow of fuel and hydraulic fluid to the engine
*arms the fire extinguishing bottle discharge switch
A yellow disc missing indicates what condition?
bottle blew because pilot blew it
We do not use smoke detectors where?
Not used for Engine use
The most common type of halon used today is ____.
1301
CO2 (carbon dioxide) extinguishing agent will extinguish an engine fire by doing what?
smothering the fire
The lindberg continuous loop system uses what to get a fire warning?
increased gas pressure to activate the diaphragm switch in the responder unit
If an induction fire occurs on a turbine engine, what should be done?
A red disc missing indicates what condition?
bottle blew due to overheat
The HRD system retains its charge by using ____.
pressurized nitrogen with breakable / fusible disks
After a fire is extinguished the sensor core material reabsorbs the hydrogen gas emitted by the titanium wire and the responder will automatically reset the system.
Systrom donner / Lindberg
What is the function of a fire detection system?
To activate a warning device in the event of a powerplant fire.
The most satisfactory extinguishing agent for a tailpipe or intake fire is
carbon dioxide.
The use of water on class D fires
will cause the fire to burn more violently and can cause explosions.
What retains the nitrogen charge and fire-extinguishing agent in a high rate of discharge (HRD) container?
Breakable disk and fusible disk.
Why does one type of Fenwal fire detection system use spot detectors wired in parallel between two separate circuits?
So that a single fault may exist in the system without sounding a false alarm.
Which of the following fire detection systems measures temperature rise compared to a reference temperature?
Thermocouple.
A fire detection system that operates on the rate-of-temperature rise is a
thermocouple system.
Which of the following is NOT used to detect fires in reciprocating engine nacelles?
Smoke detectors
The explosive cartridge in the discharge valve of a fire-extinguisher container is
a life-dated unit.
A continuous-loop fire detector is what type of detector?
Overheat detector.
The most satisfactory extinguishing agent for an electrical fire is
carbon dioxide
For fire detection and extinguishing purposes, aircraft powerplant areas are divided into fire zones based on
the volume and smoothness of the airflow through engine compartments.
Which of the following fire detection systems will detect a fire when an element is inoperative but will not test when the test circuit is energized?
The Kidde system and the Fenwal system.
The fire detection system that uses two wires imbedded in a ceramic core within a tube is the
Kidde system.
Which statement best describes the blowout type indicator disk on a fixed fire extinguishing system?
When the yellow indicator disk is missing, it indicates the fire extinguishing system has been normally discharged.
Which of the following fire detection systems uses heat in the normal testing of the system?
The thermocouple system and the Lindberg system.
A fire involving energized electrical equipment is defined as a
class C fire.
The pulling out (or down) of an illuminated fire handle in a typical large jet aircraft fire protection system commonly accomplishes what events?
Closes fuel shutoff, closes hydraulic shutoff, disconnects the generator field, and arms the fire-extinguishing system.
What is the principle of operation of the continuous-loop fire detector system sensor?
Core resistance material which prevents current flow at normal temperatures.
