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Question 124-1 : The eye can fully adjust to ? [ Preparation civilian ]

High levels of illumination in 10 seconds and darkness in 30 minutes

exemple 224 High levels of illumination in 10 seconds and darkness in 30 minutes.

Question 124-2 : The eustachian tube is the passage way between the ?

Throat and the middle ear

exemple 228 Throat and the middle ear.

Question 124-3 : Carbon monoxide co poisoning in flight ?

Presents an extremely dangerous situation as the blood may not be able carry sufficient amounts of oxygen to vital cells and tissues of the body

exemple 232 Presents an extremely dangerous situation as the blood may not be able carry sufficient amounts of oxygen to vital cells and tissues of the body.

Question 124-4 : The damaging effects of noise on the pilot depends on .1 the intensity of the noise.2 the frequency of the noise .3 the exposure time to noise .4 proper use of the headset in the cockpit.which of the following lists all the correct statements ?

1 2 3 and 4

exemple 236 1, 2, 3 and 4.

Question 124-5 : The human circadian rhythm is based on a cycle of about ?

24 hours

Admin .circadian rhythm is derived from the latin words circa dies meaning approximately a day it may be defined as the changes in human behavior and physiology that occur within a 24 hour period .without external stimuli human circadian rhythm has an average period of 24 2 hours .there may be some modification of the circadian cycle with food and temperature the most powerful external stimulus for synchronizing circadian rhythm to a 24 hour cyclic is exposure to the light of day and darkness at night exemple 240 24 hours.

Question 124-6 : The cabin pressure in airline operation is ?

Normally between 6000 to 8000 feet

exemple 244 Normally between 6000 to 8000 feet.

Question 124-7 : With hyperventilation caused by high levels of arousal or overstress ?

An increased amount of carbon dioxide is exhaled causing muscular spasms and even unconsciousness

exemple 248 An increased amount of carbon dioxide is exhaled causing muscular spasms and even unconsciousness.

Question 124-8 : With a heart rate of 72 beats per minute and a stroke volume of 70 ml the cardiac output is about ?

5 litres/min

.cardiac output = stroke volume x heart rate.cardiac output = 70 ml x 72 beats per minute.cardiac output = 5040 ml/minutes 5 litres/min exemple 252 5 litres/min.

Question 124-9 : Why is hypoxia especially dangerous for pilots flying solo ?

Since the first signs of hypoxia are generally hard to detect

exemple 256 Since the first signs of hypoxia are generally hard to detect.

Question 124-10 : The effects of galactic radiation ?

Increases with altitude

exemple 260 Increases with altitude.

Question 124-11 : The low level of humidity found in a pressurised aircraft cabin ?

Should be compensated for by drinking water before one gets thirsty

exemple 264 Should be compensated for by drinking water before one gets thirsty.

Question 124-12 : The percentage of oxygen in the troposphere in dry air ?

Is independent of altitude

exemple 268 Is independent of altitude.

Question 124-13 : The ossicles the malleus incus and stapes are ?

Located in the middle ear

exemple 272 Located in the middle ear.

Question 124-14 : The organ which metabolises alcohol from the body is the ?

Liver

exemple 276 Liver.

Question 124-15 : The normal sleep cycle is approximately every ?

90 minutes

exemple 280 90 minutes.

Question 124-16 : The normal rate of breathing when at rest is ?

12 to 20 cycles a minute

.respiratory rate breathing rate or respiratory frequency the number of breaths a person takes during one minute it is usually measured at rest while sitting .medical textbooks suggest that normal respiratory rate for adults is only 12 breaths per minute at rest most adults breathe much faster about 15 20 breaths per minute exemple 284 12 to 20 cycles a minute.

Question 124-17 : The most dangerous type of incapacitation in flight is one that ?

Develops slowly and gradually insidious

exemple 288 Develops slowly and gradually (insidious).

Question 124-18 : The main reason why it is inadvisable to fly when suffering from a cold is that ?

Pain and damage to the eardrum can result particularly during fast descents

exemple 292 Pain and damage to the eardrum can result, particularly during fast descents.

Question 124-19 : The function of the eustachian tube is to equalise the pressure between the ?

Middle ear and the external atmosphere

exemple 296 Middle ear and the external atmosphere.

Question 124-20 : The changes in atmospheric gas pressure with altitude are ?

Non linear with a higher rate of change at lower levels

.at low level each time you climb 27 ft the pressure decrease by 1 hpa .at higher level you have to climb 50 ft for example to see a pressure decrease of 1 hpa .the decrease of 1 hpa/27 ft is only applicable at the lower levels of the troposphere as you go up and air pressure decreases the change of height per 1 hpa increases at mean sea level 1hpa/27ft at fl180 it's 50ft/hpa and at fl390 it's 105ft/hpa exemple 300 Non-linear, with a higher rate of change at lower levels.

Question 124-21 : The human vestibular system performs spatial orientation by ?

Measuring linear and radial acceleration within the inner ear

exemple 304 Measuring linear and radial acceleration within the inner ear.

Question 124-22 : Which symptom of hypoxia is the most dangerous for conducting safe flight ?

The degradation of reasoning and perceptive functions

exemple 308 The degradation of reasoning and perceptive functions.

Question 124-23 : Contrary to a person's personality attitudes ?

Are the product of personal disposition and past experience with reference to an object or a situation

exemple 312 Are the product of personal disposition and past experience with reference to an object or a situation.

Question 124-24 : Does noise above 90 db improve performance ?

Never

exemple 316 Never.

Question 124-25 : Decompression sickness/illness is characterized by ?

Over saturated nitrogen gas molecules in the body tissues

.decompression sickness is sometimes a fatal condition resulting from the formation of nitrogen bubbles in the blood and tissues because of too rapid decompression seen especially in deep sea divers ascending rapidly from a dive it is characterized by severe pains in the joints and chest skin irritation cramps nausea and paralysis exemple 320 Over-saturated nitrogen gas molecules in the body tissues.

Question 124-26 : Crm crew resource management and mcc multi crew coordination training are designed to improve ?

The quality of crew performance

exemple 324 The quality of crew performance.

Question 124-27 : Even at normal cabin altitudes i e around 8000 ft you can get severe abdominal pain and flatulence after eating gas forming foods or fizzy drinks the correct counter measure is ?

Descend to a lower altitude

exemple 328 Descend to a lower altitude.

Question 124-28 : Conductive hearing loss can be caused by .1 damage to the ossicles in the middle ear caused by infection or trauma.2 a damage of the auditory nerve.3 an obstruction in the outer ear.4 a ruptured tympanic membrane ?

1 3 and 4 are correct 2 is false

.hearing is divided into two separate functions sound conduction in the external ear the tympanic membrane and the ossicles and sound perception in the cochlea the auditory nerve .the question states 'conductive hearing' only thus statement n°2 is false exemple 332 1, 3 and 4 are correct, 2 is false.

Question 124-29 : Carbon monoxide poisoning ?

Is more likely to occur in aeroplanes where the cabin heating is supplied by passing cabin air over the exhaust manifold s

exemple 336 Is more likely to occur in aeroplanes where the cabin heating is supplied by passing cabin air over the exhaust manifold(s).

Question 124-30 : Carbon monoxide is particularly dangerous because .1 its initial symptoms are not alarming.2 it is colo ess.3 its is odo ess.4 it is highly toxic.5 its effects are cumulative ?

1 2 3 4 and 5

exemple 340 1, 2, 3, 4 and 5.

Question 124-31 : Which statement is correct ?

Oxygen diffusion from the blood into the cells depends on the partial oxygen pressure gradient

exemple 344 Oxygen diffusion from the blood into the cells depends on the partial oxygen pressure gradient.

Question 124-32 : Which statement about acute or chronic fatigue is incorrect ?

Acute fatigue generally has psychological roots

.fatigue falls into two broad categories 'acute fatigue' short term and 'chronic fatigue' long term .chronic fatigue extending over a long period of time usually has psychological roots an underlying disease is sometimes responsible however continuous stain on your job for example can produce chronic fatigue you may experience this condition in the form of weakness tiredness palpitations of the heart breathlessness headaches or irritability sometimes chronic fatigue even creates stomach or intestinal problems and generalized aches and pains throughout the body when the condition becomes serious enough it can lead to emotional illness if you suspect that you are suffering from chronic fatigue consult your doctor self help cures are rare above all don't fly .acute fatigue on the other hand is short lived and is a normal occurrence in everyday living it is the kind of tiredness you feel after a period of strenuous effort excitement or lack of sleep rest after exertion and 8 hours of sound sleep ordinarily cures this condition .acute fatigue is felt after a period of significant exertion or emotional excitement inadequate recuperation from periods of acute fatigue can lead to chronic fatigue with chronic fatigue individuals can be being totally apathetic and indifferent to their surroundings exemple 348 Acute fatigue generally has psychological roots.

Question 124-33 : The body obtains its energy from ?

Carbohydrates protein and fats

exemple 352 Carbohydrates, protein and fats.

Question 124-34 : The blood in the pulmonary artery is ?

Lacking in oxygen and rich in carbon dioxide

.the pulmonary artery is the only artery which contains deoxygenated blood which is carried from the right ventricle to the lungs .the pulmonary vein carries oxygenated blood from the lungs to the left atrium of the heart exemple 356 Lacking in oxygen and rich in carbon dioxide.

Question 124-35 : Equalization of air pressure between the outer and the middle ear is ?

Important to prevent pain and loss of hearing during flight

exemple 360 Important to prevent pain and loss of hearing during flight.

Question 124-36 : While flying vfr 'wings level' on top of clouds at 10 000 feet your artificial horizon indicates a 20 degree bank ?

You trust the instrument and level off according to the instrument read out

exemple 364 You trust the instrument and level off according to the instrument read-out.

Question 124-37 : The average pulse of a healthy adult at rest is about ?

60 to 80 beats/min

exemple 368 60 to 80 beats/min.

Question 124-38 : The autonomic nervous system ans regulates ?

Sweating arterial pressure body temperature and the general adaptation syndrome

exemple 372 Sweating, arterial pressure, body temperature and the general adaptation syndrome.

Question 124-39 : The atmosphere contains the following gases ?

78% nitrogen 21% oxygen 0 03% carbon dioxide rest rare gases

exemple 376 78% nitrogen, 21% oxygen, 0,03% carbon dioxide, rest: rare gases.

Question 124-40 : The ability of the human eye to read alphanumeric information is ?

Limited to the foveal area of the retina

exemple 380 Limited to the foveal area of the retina.


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