Turbine fire protection

Question 1

What’s FAR Part 147?

Answer 1

Aviation Maintenance Technician School

Question 2

Single loop thermal systems operate on the ______ detection system

Answer 2

Spot

Question 3

What would be the best fire extinguishing agent today, to use for an intake fire?

Answer 3

Carbon Dioxide / CO2

Question 4

A bimetallic thermoswitch is used in what type of detector?

Answer 4

spot fire detection

Question 5

Electrically discharged cartridges in a HRD system are used on what type of aircraft?

Answer 5

multi-engine

Question 6

A continuous loop fire detection system would be classified as what?

Answer 6

overheat system

Question 7

Pulling the fire handle on a typical large transport jet A/C normally does what?

Answer 7

*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

Question 8

A yellow disc missing indicates what condition?

Answer 8

bottle blew because pilot blew it

Question 9

We do not use smoke detectors where?

Answer 9

Not used for Engine use

Question 10

The most common type of halon used today is ____.

Answer 10

1301

Question 11

CO2 (carbon dioxide) extinguishing agent will extinguish an engine fire by doing what?

Answer 11

smothering the fire

Question 12

The lindberg continuous loop system uses what to get a fire warning?

Answer 12

increased gas pressure to activate the diaphragm switch in the responder unit

Question 13

If an induction fire occurs on a turbine engine, what should be done?

Question 14

A red disc missing indicates what condition?

Answer 14

bottle blew due to overheat

Question 15

The HRD system retains its charge by using ____.

Answer 15

pressurized nitrogen with breakable / fusible disks

Question 16

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.

Answer 16

Systrom donner / Lindberg

Question 17

What is the function of a fire detection system?

Answer 17

To activate a warning device in the event of a powerplant fire.

Question 18

The most satisfactory extinguishing agent for a tailpipe or intake fire is

Answer 18

carbon dioxide.

Question 19

The use of water on class D fires

Answer 19

will cause the fire to burn more violently and can cause explosions.

Question 20

What retains the nitrogen charge and fire-extinguishing agent in a high rate of discharge (HRD) container?

Answer 20

Breakable disk and fusible disk.

Question 21

Why does one type of Fenwal fire detection system use spot detectors wired in parallel between two separate circuits?

Answer 21

So that a single fault may exist in the system without sounding a false alarm.

Question 22

Which of the following fire detection systems measures temperature rise compared to a reference temperature?

Answer 22

Thermocouple.

Question 23

A fire detection system that operates on the rate-of-temperature rise is a

Answer 23

thermocouple system.

Question 24

Which of the following is NOT used to detect fires in reciprocating engine nacelles?

Answer 24

Smoke detectors

Question 25

The explosive cartridge in the discharge valve of a fire-extinguisher container is

Answer 25

a life-dated unit.

Question 26

A continuous-loop fire detector is what type of detector?

Answer 26

Overheat detector.

Question 27

The most satisfactory extinguishing agent for an electrical fire is

Answer 27

carbon dioxide

Question 28

For fire detection and extinguishing purposes, aircraft powerplant areas are divided into fire zones based on

Answer 28

the volume and smoothness of the airflow through engine compartments.

Question 29

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?

Answer 29

The Kidde system and the Fenwal system.

Question 30

The fire detection system that uses two wires imbedded in a ceramic core within a tube is the

Answer 30

Kidde system.

Question 31

Which statement best describes the blowout type indicator disk on a fixed fire extinguishing system?

Answer 31

When the yellow indicator disk is missing, it indicates the fire extinguishing system has been normally discharged.

Question 32

Which of the following fire detection systems uses heat in the normal testing of the system?

Answer 32

The thermocouple system and the Lindberg system.

Question 33

A fire involving energized electrical equipment is defined as a

Answer 33

class C fire.

Question 34

The pulling out (or down) of an illuminated fire handle in a typical large jet aircraft fire protection system commonly accomplishes what events?

Answer 34

Closes fuel shutoff, closes hydraulic shutoff, disconnects the generator field, and arms the fire-extinguishing system.

Question 35

What is the principle of operation of the continuous-loop fire detector system sensor?

Answer 35

Core resistance material which prevents current flow at normal temperatures.