Volcanic Ash Flashcards
1
Q
What is volcanic ash?
A
Small pieces of rock, minerals and volcanic glass less than 2mm in diameter.
2
Q
What are the basic characteristics of volcanic ash?
A
Insoluble in water, extremely abrasive, mildly corrosive and electrically conductive.
3
Q
What medical conditions could volcanic ash cause?
A
- Breathing Difficulties
- Soreness of eyes
- Starvation of Oxygen
- Chemical gases convert into sulphuric acid in the presence of moisture.
4
Q
What is the Darwin VAAC responsible for?
A
The issuance of Volcanic Ash Advisories (VAA) within its area of responsibility, and of SIGMET for the Brisbane and Melbourne FIR.
5
Q
How can Volcanic Ash affect an aircraft?
A
Volcanic ash can:
- erode turbine compressor blades
- block engine components like air intakes and jet fuel nozzles
- block pitot systems
- produce static electricity which interferes with communication
