Fire Protection System Flashcards

1
Q

In what area of an aircraft would you find a carbon monoxide detector?

A

Cabin and cockpit

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2
Q

What occurs when a visual smoke detector is activated?

A

A lamp within the indicator illuminates autmoatically

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3
Q

The types of fire-extinguisher agents for aircraft interior fires are

A

water, carbon dioxide, dry chemical and hologenated hydrocarbons

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4
Q

When air samples contain carbon monoxide, portable carbon monoxide detectors containing yellow silica gel will turn what color?

A

Green

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5
Q

Smoke detection instruments are classified by their method if

A

detection

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6
Q

Smoke detectors that use a measurement of light transmissibility in the air are called

A

photelectrical devices

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7
Q

A contaminated carbon monoxide portable test unit may be returned to service by

A

removing the indicating element and installing a new indicating element

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8
Q

Which fire-detection system measures temperature rise compared to a reference temperature?

A

Thermocouple

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9
Q

A carbon dioxide (CO2) hand held fire extinguisher may be used on an electrical fire if the

A

horn is nonmetallic

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10
Q

The proper fire extinguishing agent to use on an aircraft brake fire is

A

dry powder chemical

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11
Q

If an engine fire develops during the starting procedures, the first step you should take in extinguishing the fire is to

A

continue cranking to start and blow it out

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12
Q

Smoke in the cargo and/or baggage of an aircraft is commonly detected by which instrument?

A

Photoelectric cell

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13
Q

Light refraction smoke detectors are activated when the detector

A

senses light refracted from the smoke particles passing through a chamber

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14
Q

Why does the Fenwal fire-detection system use spot detectors wired parallel between two seperate circuits?

A

A short may exist in either circuit without causing a false fire warning

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15
Q

What type of thermally sensitive salt is used in Fenwal fire detection systems?

A

Eutectic salt

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16
Q

A fire extinguisher container can be checked to determine its charge by

A

weighing the container and its contents

17
Q

What is the color code for fire extinguisher lines?

A

Brown

18
Q

The most common cause of false fire warnings in a continuous loop fire detection systems is

A

dents, kinks or crushed sensor sections

19
Q

A thermocouple in a fire warning system causes the warning system to operate because

A

it generates a small current when heated

20
Q

The thermocouple fire-warning system is activated by a

A

rate-of-temperature rise

21
Q

When used in fire detection systems having a single indicator light, thermal switches are wired in

A

parallel with each other and in series with the light

22
Q

Built in aircraft fire-extinguishing systems are ordinally charged with

A

halogenated hydrocarbons and nitrogen

23
Q

In reference to aircraft fire extinguishing systems;
1. During removal and installation, the terminals of discharge cartridges should be grounded or shorted.
2. Before connecting cartridge terminals to the electrical system, the system should be checked with a voltmeter to see that no voltage exists at the terminals connections

A

Both No.1 and No.2 are true

24
Q

What method is used to detect the thermal discharge of a built-in-fire-extinguisher system?

A

A rupture of the red plastic disk in the thermal discharge line

25
Q

The thermal switches of a bimetallic thermal-switch type fire-detection (single loop) system are heat sensitive units that complete circuits at a certain temp. They are connected in

A

parallel with each other, but in series with the indicator lights

26
Q

On a periodic check of fire extinguishers, the pressure was not between minimum and maximum limits. What procedure should be followed?

A

Replace the extinguisher container

27
Q

In some fire-extinguisher systems evidence that the system has been intentionally discharged is indicated by the absence of a

A

yellow disk on the side of the fuselage

28
Q

If a fire extinguisher cartridge is removed from a discharge valve for any reason, it should be

A

used only on the orginal discharge valve assembly

29
Q

Which of the following are fire precautions which must be observed when working in an oxygen system?

A

Display “No smoking” placards, provide adequate firefighting equipment, keep all tools and oxygen servicing equipment free from oil and grease and avoid checking aircraft radio or electrical systems

30
Q

Which fire extinguishing agent is considered to be at least toxic?

A

Bromotrifluoromethane (Halon 1301)

31
Q

Which fire extinguishing agent has less chance of reflash?

A

HALON 1211

32
Q

Maintenance of fire detection systems include the

A

replacement of damaged sensing elements

33
Q

A squib, as used in a fire protection system is a

A

device for causing the fire extinguishing agent to be released

34
Q

How much water is allowed in a US gal of turbin fuel?

A

.0015%

35
Q
A