Question 138-1 : The function of the eustachian tube is to equalise the pressure between the ? [ Revision flight ]

Question 138-2 : The changes in atmospheric gas pressure with altitude are ?

Question 138-3 : The human vestibular system performs spatial orientation by ?

Measuring linear and radial acceleration within the inner ear.

Question 138-4 : Which symptom of hypoxia is the most dangerous for conducting safe flight ?

The degradation of reasoning and perceptive functions.

Question 138-5 : Contrary to a person's personality attitudes ?

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

Question 138-6 : Does noise above 90 db improve performance ?

Never.

Question 138-7 : Decompression sicknessillness 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

Question 138-8 : Crm crew resource management and mcc multi crew coordination training are designed to improve ?

The quality of crew performance.

Question 138-9 : Even at normal cabin altitudes ie 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.

Question 138-10 : Conductive hearing loss can be caused by 1 damage to the ossicles in the middle ear caused by infection or trauma2 a damage of the auditory nerve3 an obstruction in the outer ear4 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 nervethe question states conductive hearing only thus statement n°2 is false

Question 138-11 : 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 .

Question 138-12 : Carbon monoxide is particularly dangerous because 1 its initial symptoms are not alarming2 it is colo ess3 its is odo ess4 it is highly toxic5 its effects are cumulative ?

1 2 3 4 and 5.

Question 138-13 : Which statement is correct ?

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

Question 138-14 : 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 conditionacute 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

Question 138-15 : The body obtains its energy from ?

Carbohydrates protein and fats.

Question 138-16 : 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 lungsthe pulmonary vein carries oxygenated blood from the lungs to the left atrium of the heart

Question 138-17 : Equalization of air pressure between the outer and the middle ear is ?

Important to prevent pain and loss of hearing during flight.

Question 138-18 : 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.

Question 138-19 : The average pulse of a healthy adult at rest is about ?

60 to 80 beatsmin.

Question 138-20 : The autonomic nervous system ans regulates ?

Sweating arterial pressure body temperature and the general adaptation syndrome.

Question 138-21 : The atmosphere contains the following gases ?

78% nitrogen 21% oxygen 003% carbon dioxide rest rare gases.

Question 138-22 : The ability of the human eye to read alphanumeric information is ?

Limited to the foveal area of the retina.

Question 138-23 : The 5 human senses tend to adapt ?

This statement is true.

The five human senses sight hearing touch smell tastethe human senses tend to adapt constantly to stimuli and to be sensitive according to the mean energy values of their perceptual field

Question 138-24 : Expanded abdominal air following rapid decompression at 30 000 feet ?

May be dangerous causing great pain.

Question 138-25 : Excessive intake of aspirin can cause ?

Gastric bleeding.

Question 138-26 : Which of the following is most true ?

Regular exercise is beneficial to general health but the most efficient way to lose weight is by reducing calorie consumption.

Question 138-27 : Where on the arousalperformance graph is a pilot best placed to cope with a difficult task without performance degrading ?

Below the 'breakpoint'.

The graph below shows the relationship between tensionarousalstressanxiety and performance com encom040 929jpgyou are able to cope up to 'breakpoint' but not at or beyond that point

Question 138-28 : When the weather is foggy on approach a pilot may get a feeling of ?

The airfield being further away than actually is.

Question 138-29 : When might a pilot have the sensation of a nose low attitude ?

When decelerating in straight horizontal flight.

Question 138-30 : Which is the audible range to human hearing ?

Between 20 hz and 20 khz.

Question 138-31 : Which of the following statements isare correct 1 rem sleep becomes shorter with any repeated sleep cycle during the night2 rem sleep is more important for the regeneration of mental functions than all the other sleep stages are ?

1 is false 2 is correct.

After we have been asleep for about 90 minutes we move into the first phase of rapid eye moevement rem sleep in this phase our brains exhibit alpha waves which have frequency 9 14 hz and these are the ones we show during rem sleepthe following graphic shows that we have 4 or 5 episodes of rem sleep during the night with more occurring close to the time we will get up 2530the horizontal scale is sleep time in hours and the vertical the stages of sleeprem sleep is more important for the regeneration of mental functions than all the other sleep stages are

Question 138-32 : Which of the following statements is correct concerning flight in an environment of low contrast fog snow darkness haze ?

It is difficult to estimate the correct speed and size of approaching objects.

Question 138-33 : Which of the following is correct ?

70% 80% of information processed by man enters the visual channel.

Question 138-34 : Which of the following statements concerning tiredness is correct ?

Tiredness is a subjective sensation which may result in hypovigilance.

Tiredness can be the result of physical andor intellectual overload it is the cause and not the result of reduced performance and attention from everyday experience we know that both mental and physical effort can cause fatigue and fatigue leads to errors

Question 138-35 : When accelerating forward the otoliths in the utriculussacculus will ?

Give the illusion of climbing body tilting backwards nose of the ac going up .

Question 138-36 : Which of the following statements concerning barotrauma are correct ?

It is caused by pressure differentials between gases in hollow cavities of the body and the ambient pressure.

Barotrauma typically occurs when the organism is exposed to a significant change in ambient pressure such as when a scuba diver a free diver or an airplane passenger ascends or descends or during uncontrolled decompression of a pressure vessel barotrauma is physical damage to body tissues caused by a difference in pressure between a gas space inside or in contact with the body and the surrounding pressure

Question 138-37 : Which of the following statements about hyperthermia is correct ?

Complete adaptation to the heat in a hot country takes about a fortnight.

Hyperthermia is defined as a temperature greater than 375 383°c depending on the reference that occurs without a change in the body's temperature set point the normal human body temperature in a healthy adult can be as high as 377°c in the late afternoon hyperthermia requires an elevation from the temperature that would otherwise be expected such elevations range from mild to extreme body temperatures above 40°c can be life threatening

Question 138-38 : Which of the following occurs in man if the internal body temperature increases to 39°c ?

Impairment of physical and mental performance.

The normal human body temperature in a healthy adult is between 365°c and 375 °chyperthermia is defined as a temperature greater than 375°c and can lead to dehydration associated with heat stroke the skin may become red and hot as blood vessels dilate in an attempt to increase heat dissipation sometimes leading to swollen lipsthis can lead to fainting or dizziness especially if the person stands suddenly the person may become confused or hostile and may seem intoxicated

Question 138-39 : Which of the following list are symptoms of fatigue 1 diminished accommodation2 slowed reactions3 long term memory access problems4 being over talkative5 diminished motor skills ?

1 2 3 and 5.

Question 138-40 : Tuc time of useful consciousness is ?

The length of time during which an individual can act with both mental and physical efficiency measured from the moment at which heshe is exposed to hypoxia.