engine fire protection sys-Powerplant

1 (8310) - Which of the following fire detectors are commonly used in the power section of an engine nacelle?

C- Rate-of-temperature-rise detectors.

2 (8311) - What is the function of a fire detection system?

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

3 (8312) - (Refer to Figure 2.) Determine the fire-extinguisher container pressure limits when the temperature is 75°F.

C- 338 minimum and 424 maximum.

4 (8313) - How are most aircraft turbine engine fire-extinguishing systems activated?

A- Electrically discharged cartridges.

5 (8314) - How does carbon dioxide (CO(2)) extinguish an aircraft engine fire?

A- Contact with the air converts the liquid into snow and gas which smothers the flame.

6 (8315) - What retains the nitrogen charge and fire-extinguishing agent in a high rate of discharge (HRD) container?

A- Breakable disk and fusible disk.

7 (8316) - A continuous-loop fire detector is what type of detector?

B- Overheat detector.

8 (8317) - What is the operating principle of the spot detector sensor in a fire detection system?

B- A conventional thermocouple that produces a current flow.

9 (8318) - How is the fire-extinguishing agent distributed in the engine section?

C- Spray nozzles and perforated tubing.

10 (8319) - Which of the following is the safest fire-extinguishing agent to use from a standpoint of toxicity and corrosion hazards?

C- Bromotrifluoromethane (Halon 1301).

11 (8320) - Which of the following is NOT used to detect fires in reciprocating engine nacelles?

A- Smoke detectors.

12 (8321) - What is the principle of operation of the continuous-loop fire detector system sensor?

B- Core resistance material which prevents current flow at normal temperatures.

13 (8322) - The most satisfactory extinguishing agent for a carburetor or intake fire is

A- carbon dioxide.

14 (8323) - The explosive cartridge in the discharge valve of a fire-extinguisher container is

A- a life-dated unit.

15 (8324) - Why does one type of Fenwal fire detection system use spot detectors wired in parallel between two separate circuits?

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

16 (8325) - Which of the following fire detection systems measures temperature rise compared to a reference temperature?

A- Thermocouple.

17 (8326) - The pulling out (or down) of an illuminated fire handle in a typical large jet aircraft fire protection system commonly accomplishes what events?

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

18 (8327) - A fire detection system operates on the principle of a buildup of gas pressure within a tube proportional to temperature. Which of the following systems does this statement define?

B- Lindberg continuous-element system.

19 (8328) - The fire detection system that uses a single wire surrounded by a continuous string of ceramic beads in a tube is the

A- Fenwal system.

20 (8329) - The fire detection system that uses two wires imbedded in a ceramic core within a tube is the

C- Kidde system.

21 (8330) - A fuel or oil fire is defined as a

A- class B fire.

22 (8331) - A fire detection system that operates on the rate-of-temperature rise is a

B- thermocouple system..

23 (8332) - A fire involving energized electrical equipment is defined as a

C- class C fire.

24 (8333) - Two continuous-loop fire detection systems that will not test due to a broken detector element are the

B- Kidde system and the Fenwal system.

25 (8334) - In a fixed fire-extinguishing system, there are two small lines running from the system and exiting overboard. These line exit ports are covered with a blowout type indicator disc. Which of the following statements is true?

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

26 (8335) - The most satisfactory extinguishing agent for an electrical fire is

B- carbon dioxide.

27 (8336) - 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?

B- The Kidde system and the Fenwal system.

28 (8337) - Which of the following fire detection systems uses heat in the normal testing of the system?

A- The thermocouple system and the Lindberg system.

29 (8338) - After a fire is extinguished, or overheat condition removed in aircraft equipped with a Systron-Donner fire detector, the detection system

B- automatically resets.

30 (8339) - The use of water on class D fires

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

31 (8340) - For fire detection and extinguishing purposes, aircraft powerplant areas are divided into fire zones based on

B- the volume and smoothness of the airflow through engine compartments.

32 (8341) - (Refer to Figure 3.) What are the fire-extinguisher container pressure limits when the temperature is 50°F?

C- 475 - 625 PSIG.