fire/fuel2

Using the accompanying servicing chart, which of the following pairs of readings indicates a properly charged fire-extinguishing bottle?

• -30 F and 450 psig.

• 40 F and 400 psig.

• 40º F and 475 psig.

• 0 F and 300 psig.

Should a Class A/B/C fire extinguisher be used on ALL types of fires?

• Yes

• No

• Depends if indoors or outdoors

• Only if no alternate is availableOnly if no alternate is available

In a HRD fire extinguishing systems, there are 2 blowout discs. What are their purposes?

• There is no difference. The colours are at the manufactures option

• The Red Disc indicates a normal use of the extinguishing system, the yellow indicates a thermal blowout

• A missing yellow disc indicates a normal use of the extinguishing system, a missing red indicates a thermal blowout

• The Yellow disc indicates normal system charge, the red disc indicates a system overcharge.

Light refraction smoke detectors are activated when the detector

• measures a reduction in the amount of visible or infrared light in the surrounding area.

• senses light reflected from smoke particles passing through a chamber.

• uses radiation induced ionization to detect the presence of smoke.

• Senses smoke from flammable sources at temperatures above 100⁰C

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

• parallel with each other and in series with the light.

• series with each other and parallel with the light.

• Parallel/series hybrid control circuits with repeaters

• series with each other and the light.

In a Fenwal fire detection System, what would happen if the wire is pinched or kinked crushing the casing and centre wires together?

• The system would cause a false indication immediately

• The system would fail to function

• There would be no effect on the system and it would function normally as there are two wires inside the casing to prevent this from happening

• The system would work properly for the section of the detector between the damaged area and the connector.

A fuel temperature indicator is located in the fuel tanks on some turbine powered airplanes to tell when the fuel is

• getting cold enough to form hard ice.

• in danger of forming ice crystals

• about to form rime ice

• at it’s best potential for making horsepower. This information is used in charts found in the Pilot Operating Handbook

Which Fire Extinguisher Class would we use on a gasoline fire?

• Class A

• Class B

• Class C

• Class D

Which Fire Extinguisher would we use on an electrical fire

• Class A

• Class B

• Class C

• Class D

A large aircraft APU fire bottle is:

• Powered from a master switch

• Powered from the switched Battery Bus

• Powered from the Hot Battery Bus

• Powered by a combination of inert gases and proprietary chemicals