Statistics for HUMAN PERFORMANCE 040

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This quiz has been taken 234 times
(208 since last reset)
The average score is 68 of 159

Answer Stats

Question	Answer	% Correct
The condition whereby the body does not get enough oxygen to function correctly is known as:	Hypoxia.	73%
You have planned to take a couple of friends on an air experience flight. On the day, the weather conditions are marginal and there is a strong cross-wind on the runway. As a competent assessor of risk, which of the following decisions should you take?	Reschedule the flight for another time, discounting the immediate disappointment to your friends.	70%
Which of the following goes through the capillaries thin walls?	Gases.	67%
Which of the following should a pilot primarily rely on if he becomes disorientated in instrument meteorological conditions?	The aircraft's instruments.	67%
It is generally accepted that the short-term memory can hold how many items and how long?	7 items for 10-20 seconds.	66%
Consistent adherence to approved checklists is a sign of:	Disciplined and competent pilot.	64%
As captain of an aircraft you will need to show good leadership skills. Which of the following is not one such skill?	Aggressive assertiveness.	63%
Complete the following statement. The most appropriate time for a pilot to give passengers an initial briefing on emergency procedures is:	During a pre-flight safety briefing.	62%
The ability of a pilot to withstand even moderate forces can be affected by:	Fatigue in the pilot.	62%
Which part of the nervous system usually controls breathing?	The Autonomic Nervous System.	60%
If an aircraft accelerates, what do the otoliths indicate to the brain?	That the aircraft is pitching up.	59%
The vestibular apparatus detects ____ acceleration:	Angular and linear.	58%
Complete the following statement. If, as an inexperienced pilot, you are flying with someone of much greater experience, and you see him doing something you consider to be dangerous, you should:	Immediately question his course of action.	58%
You are suffering from a cold with slightly blocked nose and sinuses and you have an aircraft booked to fly. Should you:	Not fly?	58%
When can a pilot experience the "leans"?	In all flight conditions.	56%
Repeating information several times transfer it to long-term memory is called:	Rehearsing.	56%
Color-blindness or, more accurately, color-defective vision, is caused by:	A defect in the structure of the color-sensitive cones in the retina.	53%
A false perception characterised by a distortion of real sensory stimuli is known as:	Hallucination.	53%
Which will always affect your ability to fly?	Strong prescription analgesics and antihistamines.	53%
Prior to starting each maneuver, pilots should:	Visually scan the entire area for collision avoidance.	53%
Pilots are more subject to spatial disorientation if:	Body signals are used to interpret flight attitude.	52%
High blood pressure, heart diseases and diabetes are related to:	Obesity.	52%
Two pilots, both seated at the controls and qualified on type, have just commenced a flight when they experience an engine failure. Who should take control of the aircraft?	The pilot who, during the pre-flight briefing on emergencies, the captain agreed should take over control in such a situation.	52%
To avoid missing important steps, always use the:	Appropriate checklists.	51%
Carbon monoxide is:	Odorless, tasteless and colorless gas	51%
Who has the final responsibility whether a pilot is fit to fly for a particular flight, even though he or she holds a current medical certificate?	The pilot.	51%
If a pilot is approaching a runway much larger than that at his home airfield, what is his visual perception of the runway likely to be?	The runway will appear closer than it actually is.	51%
Empty Field Myopia is a condition where the eyes naturally focus at a distance of approximately:	1 - 2 meters.	49%
If a pilot is used to flying in relatively polluted hazy air and then flies in a very clear sky:	Distant objects may appear closer than they are.	49%
In the aeronautical decision making (ADM) process, what is the first step in neutralizing a hazardous attitude?	Recognizing hazardous thoughts.	49%
Which statement concerning hypoxia is true?	Tingling of the skin and a false sense of security may be symptoms of hypoxia.	49%
After donating blood, what is the minimum time a pilot should wait before flying?	24 hours.	48%
Susceptibility to carbon monoxide poisoning increases as:	Altitude increases.	48%
The power of accommodation in an eye:	Is decreased as the elasticity of the lens decreases.	48%
A state of temporary confusion resulting from misleading information being sent to the brain by various sensory organs is defined as:	Spatial disorientation.	48%
The International Standard Atmosphere (ISA) sea-level pressure is equal to:	1013.25 mb.	47%
Approximately how long does it take a person to dissipate one unit of alcohol from the blood?	2 hours.	47%
If advice is needed concerning possible flight with an illness, a pilot should contact:	An Aviation Medical Examiner.	47%
In the international standard atmosphere (ISA), as altitude increases in the Troposphere, pressure:	Decreases.	47%
In the International Standard Atmosphere (ISA), as altitude increases in the troposphere, air density:	Decreases.	47%
When a person is experiencing stress or fear, adrenaline is released into the blood stream causing immediate:	Increase in the pulse-rate.	47%
The amount of light entering the eye is controlled by the:	Pupil.	47%
One of the main contributory factors to the onset of motion sickness is:	The mismatch between visual and vestibular sensory inputs.	47%
Where is the blind spot?	Where the optic nerve enters the Retina.	47%
The body gets energy from:	Carbohydrates, proteins and fats.	45%
Rapid or extra deep breathing while using oxygen can cause a condition known as:	Hyperventilation.	45%
Flying when suffering from flu symptoms:	Increases tendency to suffer from blocked ears	45%
What is the antidote when a pilot has the hazardous attitude of "invulnerability"?	It could happen to me.	45%
What causes blue lips?	Lack of oxygen.	45%
At altitude the pressure of oxygen in the atmosphere is:	Lower than at MSL.	45%
Learning to fly can be stressful because the student pilot is in situation without a fully control. The most likely symptom of stress is:	Nervousness, muscle tension and attention issues.	45%
You are preparing for a training flight with an instructor and cannot find your checklist. You should:	Take time to find the checklist at the risk of missing part of your airborne time.	45%
When making a decision, will a pilot be influenced by previous experience?	Yes, past experience can play a part in decision-making.	45%
How much air pressure has dropped when climbing to 18 000 feet?	50%	44%
What effect does haze have on the ability to see traffic or terrain features during flight?	All traffic or terrain features appear to be farther away than their actual distance.	44%
Which of the following attitudes and/or characteristics are not good communication and especially dangerous when flying?	Arrogance and aggressiveness.	44%
Which of the following may cause fainting?	A sudden shock.	44%
What preparation should a pilot make to adapt the eyes for night flying?	Avoid bright white lights at least 30 minutes before the flight.	44%
When flying solo, a pilot who suspects he is suffering from spatial disorientation should:	Believe the indications of his instruments.	44%
Loudness is measured in:	Decibels.	44%
In the International Standard Atmosphere (ISA), as altitude increases in the Troposphere, temperature:	Decreases.	44%
From the options below, choose the correct sequence of the various stages of the reasoning process.	Detection, Perception, Decisions taken, Action, Feedback.	44%
Carbon monoxide in an aircraft cabin is:	Difficult to recognize because of its odorless and colorless.	44%
Which of the following statements is true?	Even small amounts of alcohol may decline evaluation ability.	44%
What is the antidote when a pilot has a hazardous attitude, such as "Antiauthority"?	Follow the rules.	44%
Complete the following sentence. If your Eustachian tube is blocked and you cannot clear your ears, you should:	Ground yourself until the condition causing the blocking of the Eustachian tube has cleared up.	44%
In red blood cells oxygen attracts to:	Hemoglobin	44%
What is the one common factor which affects most preventable accidents?	Human error.	44%
What is one effect smoking has on a pilot?	Increases body heat which, in turn, creates a demand for more oxygen.	44%
A rapid acceleration can create the illusion of being in a:	Nose up attitude.	44%
For the pilot of an aircraft on a head-on collision course with a fast-moving jet, the image of the approaching jet will appear to grow in size in the following manner:	Only slowly at first until just before impact when the image would grow in size very rapidly.	44%
Which of the following carries oxygen throughout the body?	Red blood cells (erythrocytes).	44%
If a pilot experiences spatial disorientation during flight in a restricted visibility condition, the best way to overcome the effect is to:	Rely upon the aircraft instrument indications.	44%
A pilot should be able to overcome the symptoms or avoid future occurrences of hyperventilation by:	Slowing the breathing rate, breathing into a bag, or talking aloud.	44%
Above what altitude do pilots need to breath supplementary oxygen?	10,000 ft.	42%
The frequency band that a healthy young person can hear is:	20 - 20.000 cycles per second.	42%
The three-needle type altimeter used in many light aircraft is: a) Easy to mis-read. b) Hardly ever mis-read. c) Accurate and reliable. d) Not very accurate or reliable.	a) and c).	42%
The outer, middle and inner ear are filled with:	Air, air, and liquid, respectively.	42%
Which statement is true regarding alcohol in the human system?	Alcohol renders a pilot more susceptible to hypoxia.	42%
Blood pressure may be too high due to:	All answers are correct.	42%
What suggestion could you make to your pilot fellow who is experiencing motion sickness?	Avoid unnecessary head movement and to keep her/his eyes on a point outside the aircraft.	42%
As a pilot, flying for long periods in hot summer temperatures increases the susceptibility of dehydration since the:	Dry air at altitude tends to increase the rate of water loss from the body.	42%
Which would most likely result in hyperventilation?	Emotional tension, anxiety, or fear.	42%
During straight and level flight any pronounced linear acceleration may produce sensation of the nose pitching up. In such a situation, the pilot should:	Ignore vestibular information and believe what the instruments are indicating.	42%
Air in the atmosphere is made up of:	Nitrogen (78 %), Oxygen (21%), Carbon Dioxide (0.03%) and Argon (1%).	42%
The blood carries ____ around the body and removes ____ from the body with the exchange occurring in the ____.	Oxygen / Carbon Dioxide / Capillaries.	42%
Which of the following cases can be described as "a sudden incapasitaon"?	Pilot is not able to take actions during a flight	42%
What is the most effective way to use the eyes during night flight?	Scan slowly to permit off-center viewing.	42%
Which organ controls all other bodily functions?	The brain.	42%
Which body system is responsible for distributing oxygen around the body?	The Circulatory System.	42%
A pilot should not fly for at least how long after a local anesthetic?	12 hours.	41%
Hypermetropia and Myopia are normally caused by:	A misshaped eye ball.	41%
Which statement best defines hypoxia?	A state of oxygen deficiency in the body.	41%
On what does the causes of noise induced hearing loss depend?	Both the intensity and duration of the noise above 90 dbs.	41%
In an unpressurised aircraft, at high altitudes the amount of oxygen that diffuses across the lung membranes into the blood is:	Decreased because of the low partial pressure of oxygen.	41%
Good briefings are very important. Which of the following could be the result of a bad briefing?	Increased uncertainty.	41%
What is the antidote when a pilot has a hazardous attitude, such as "impulsivity"?	Not so fast, think first.	41%
If taking a course of drugs, is it advisable to pilot an aircraft?	No, unless cleared by an Aviation Medicine Specialist.	41%
Presbycusis is an impairment of hearing due to:	Age.	40%
The effects of Hypoxia can be increased by:	All answers are correct.	40%
A likely symptom, or likely symptoms, of Hypoxia might be:	All answers are correct.	40%
Compared to a non-smoker, someone who smokes is likely to experience the effects of hypoxia at:	A lower altitude.	40%
To lessen the danger of collision with an aircraft which might be in a pilot's blind spot and closing on a constant relative bearing, the pilot should:	Carry out a systematic look out at all times.	40%
The danger of spatial disorientation during flight in poor visual conditions may be reduced by:	Having faith in the instruments rather than taking a chance on the sensory organs.	40%
Being badly overweight increases a pilot's susceptibility to which of the following conditions?	Heart attack.	40%
Where human's sence of balance is located?	In the inner ear	40%
Which of the following are terms generally used to describe a type or types of memory within the subject of Human Performance and Limitations?	Long-term memory.	40%
At night it is easier to focus on an object if you:	Look slightly to one side of it.	40%
Which of the following organs of the body supplies the single most dependable source of sensory information?	The Eye.	40%
Brain cells that have been deprived of oxygen will start to die in:	2 minutes.	38%
A pilot should not fly for at least how long after a general anesthetic?	48 hours.	38%
Gas exchange takes place in the:	Alveoli	38%
Which of the following gases regulate the rate and depth of breathing, depending on the levels at which the gas is present in the blood?	Carbon Dioxide.	38%
Motion sickness is caused by:	Continued stimulation of the tiny portion of the inner ear which controls sense of balance.	38%
What are Stress Factors or Stressors?	Events and circumstances which cause stress.	38%
Mental Overload usually:	Leads to degraded performance.	38%
Which gas, which is absorbed by the body during normal breathing, plays an important role in decompression sickness?	Nitrogen.	38%
Which of the following are ways to help avoid stress in the cockpit?	Not allowing yourself to be rushed into acting before you are ready.	38%
An analogue display is generally better than a digital display for showing which sort of data?	Qualitative.	38%
Hypoxia is the result of:	Shortage of oxygen in the body.	38%
Which occurs when climbing above 18,000 feet in an unpressurized aircraft without supplemental oxygen?	The oxygen pressure within the lungs cannot be maintained without an increase in inhaled oxygen pressure.	38%
What is the component of the eye responsible for peripheral vision and sensitive to low light levels?	The Rods.	38%
Which of the following occur when a pilot is sitting too high in a cockpit? a. Good downward outside view. b. Poor view of instruments. c. Upwards outside view obstructed.	a), b) and c).	37%
The most important controller of breathing is:	Carbon dioxide	37%
A likely symptom, or likely symptoms, of Hypoxia might be:	Increased heart rate.	37%
"Error" is a generic term which describes all those occasions when a series of mental or physical activities do not achieve their intended effect. Now, complete the following statement. Errors:	May be isolated or cumulative.	37%
Which of the following gases is related to decompression sickness?	Nitrogen.	37%
The best preventative actions to take if someone is showing symptoms of Stroboscopic Effect is to:	Place the person in the shade and get them to close their eyes.	37%
Enter into the following statement the most correct pair of gases from the options below. Hemoglobin in red blood cells is more readily attracted to ____ than ____.	Carbon Monoxide / Oxygen.	36%
What causes conductive deafness?	Damage to the ossicles or the eardrum.	36%
The best method to use when looking for other traffic at night is to:	Look to the side of the object and scan slowly.	36%
Large accumulations of carbon monoxide in the human body result in:	Loss of muscular power.	36%
The positive three-step process in the exchange of flight controls between pilots includes these verbal steps: (a) You have the flight controls, (b) I have the flight controls, and c) ____.	You have the flight controls.	36%
Which technique should a pilot use to scan for traffic to the right and left during straight-and-level flight?	Systematically focus on different segments of the sky for short intervals.	34%
Hyperventilation results from:	A lack of carbon dioxide in the body.	33%
Hazardous attitudes occur to every pilot to some degree at some time. What are some of these hazardous attitudes?	Antiauthority, impulsivity, macho, resignation, and invulnerability.	33%
One aid in increasing night vision effectiveness would be to:	Force the eyes to view off center.	33%
What is the most important sense for spatial orientation?	Sight.	33%
Accommodation is the power of the lens to focus rays of light from near objects onto the Fovea. Accommodation is controlled by:	The Ciliary muscles.	33%
In which part of the eye is visual acuity at its highest?	The Fovea.	33%
What is the purpose of the Eustachian tube?	To allow ambient pressure to equalise on both sides of the ear drum.	33%
Dark adaptation takes about ____ for the Rods, and ____ for the Cones.	30 minutes / 7 minutes.	32%
If an individual has gone scuba diving which has required a controlled ascent and will be flying to cabin pressure altitudes of 8,000 feet or less, the recommended waiting time is at least:	4 hours.	32%
Which of the following will give the illusion that the aircraft is too low during an approach?	A down-sloping runway.	32%
While flying, the changes in outside air pressure can cause air trapped in the body cavities to expand and contract. This is known as Otic Barotrauma and it most likely to effect:	All of the above.	32%
If the atmospheric pressure decreases, the partial pressure of the oxygen in the atmosphere will:	Decrease.	32%
In order to see a sharp image of an oncoming aircraft which has been detected by the eye, a pilot should:	Look directly at the oncoming aircraft.	32%
During a climb to 18,000 ft, the percentage of oxygen in the atmosphere:	Remains the same.	32%
Hypermetropia is caused by a ____ eyeball and treated by a ____ whereas Myopia is caused by a ____ eyeball and treated with_____.	Shortened / convex / lengthened / concave.	32%
At altitude, the volumetric proportion of oxygen in the atmosphere is:	The same as at mean sea level (MSL).	32%
What is noise induced hearing loss?	Loss of hearing due to damage to the cochlea.	30%
An illusion, that an aircraft is at a higher altitude than it actually is, is produced by:	Downsloping terrain.	29%
When compared to visual stimuli, auditory stimuli (noises) are:	More likely to attract attention and more likely to be responded to in error.	29%
Which procedure is recommended to prevent or overcome spatial disorientation?	Rely entirely on the indications of the flight instruments.	29%
Dark adaptation is impaired by exposure to:	Cabin pressure altitudes above 5,000 feet.	27%
You are taking a friend flying and are cruising at 6,000 ft. Your passenger begins suffering from a tingling sensation, dizziness and visual disorders and then becomes unconscious. Your passenger is probably suffering from:	Hyperventilation.	23%
The most effective technique to use for detecting other aircraft at night is:	Turn the head and sweep the eyes rapidly over the entire visible region.	23%
Risk management, as a part of aeronautical decision making ADM process, relies on which features to reduce the risk associated with each flight?	Situational awareness, problem recognition, and good judgment.	22%
Which of the following should a pilot primarily rely on if he becomes disorientated in Visual Meteorological Conditions?	His sense of sight.	19%