Human Performance Flashcards
SHELL model is
(LL) Liveware - Liveware: ex crew and ATC
(LS) Liveware - Software: ex charts, checklists, operating instructions
(LH) Liveware - Hardware: ex gear command
(EL) Environment - Liveware: hypoxia, heat and cold
% of human causes in accudents?
70 to 75%
Boyle’s Law for gas?
Volume x Pressure = Constant
Volume x Pressure = Constant is ? Law
Volume x Pressure = Constant is Boyle’s Law
Charles’ Law for gas?
Volume of a gas proportional with its temperature
Volume of a gas proportional with its temperature is ? Law
Volume of a gas proportional with its temperature is Charles’ Law
Dalton’s Law is?
Pressure of a mixture of gases = sum of partial pressure of each gas
Pressure of a mixture of gases = sum of partial pressure of each gas Law?
Dalton’s Law
Henry’s Law is?
The amount if gas dissolved in a liquid is proportional to the pressure of gas over this liquid
The amount if gas dissolved in a liquid is proportional to the pressure of gas over this liquid is ? Law
Henry’s Law
Fick’s Law is?
Gas diffuses from high to low concentrations (Gas Diffusion Law)
Gas diffuses from high to low concentrations (Gas Diffusion Law) is ? Law
Fick’s Law
Total lung capacity?
6 liters
Tidal volume of respiration at rest?
0.5 liters
Danger of carbon monoxide?
It competes with oxygen in its union with hemoglobin
Main artery in the hart is?
The aorta
Arteries that supply the heart with blood are?
The coronary arteries
Rate of heart contraction?
72 beats a minute
Stroke volume of heart?
70 ml
Cardiac volume per minute?
About 5 litres / mn
Typical blood pressures for an adult?
80/120 (mm of Hg)
Systolic is when the hart?
Diastolic is when the hart?
Systolic is when the hart contracts
Diastolic is when the hart relaxes
(memo: opposite alphabetical order)
Hypoxia starts above?
Hypoxia starts above 10 000 ft
Night vision is affected above?
Night vision is affected above 8 000 ft
TUC Time of Useful Conscientiousness at
- 18 000 ft = ?
- 22 000 ft = ?
- 25 000 ft = ?
- 30 000 ft = ?
- 35 000 ft = ?
- 43 000 ft = ?
Time of useful conscientiousness at
- 18 000 ft = 30 mn
- 22 000 ft = 4 to 8 mn
- 25 000 ft = 2 to 4 mn
- 30 000 ft = 30 s to 1 mn
- 35 000 ft = 15 to 30 s
- 43 000 ft = 8 to 12 s
Minimum time between scuba diving and flying?
24h
Breathing equipment must be used for the pilot above?
40 000 ft
Actions in case of depression?
1/ Vital: get to oxygen
2/ Then emergency descent
TUC after a cabin loss of pressure at 35 000 ft?
Time of Useful Consciousness is 30 to 40 seconds
Characteristics of blood in the pulmonary artery?
Poor in oxygen
Rich in carbon dioxide
Normal breathe rate for an adult is
12 to 20 per mn
Law that governs oxygen transfers in the alveoli?
Fick’s Law: diffusion from high concentration areas to low concentration areas
External / internal respiration are?
Metabolic process inside the cells
- External: swapping carbon dioxide for oxygen
- Internal: the opposite
Severity of hypoxia depends on? (4 elements)
1 - Rate of decompression
2 - Physical fitness
3 - Flight level
4 - Individual tolerance
Hyperventilation causes blood to become more?
Alkaline
because less carbonic dioxide thus less carbonic acid
TUC is?
Time of Useful Consciousness in an environment with poor oxygen:
- Time able to perform flying duties
- Attention, not the time until unconsciousness!
