UPT Aerospace Physiology Practice Test

These questions are part of the practice quiz. Start practicing

• What are the two primary levels of awareness in flight?
• What process occurs when a reaction is learned so well that it is performed subconsciously?
• What type of hypoxia occurs when there is a reduction in the oxygen-carrying capacity of the blood?
• What is an action that may worsen spatial disorientation during flight?
• What are the two categories of limitations to day vision?
• The symptoms of the chokes are most similar to which medical condition?
• What is essential for effective performance of the AGSM during high G conditions?
• What does the fovea become at night?
• What is the primary role of the cilia in the respiratory system?
• A rapid decompression occurs in less than how many seconds?
• What does vibration contribute to that affects crew member performance?
• Extreme discomfort due to gas expansion in the GI tract may require what actions for relief?
• What divides into two branches that lead to the lungs?
• When should muscle tension be maintained during AGSM?
• If sinus ducts are swollen due to an upper respiratory infection, what condition may occur?
• What do rods primarily allow you to see?
• The Law of Gaseous Diffusion helps to understand the transfer of gases between what?
• What method involves breathing 100 percent oxygen to eliminate nitrogen from the body?
• Which of the following is NOT a cellular constituent of blood?
• What structure senses linear acceleration within the vestibular system?
• What is one technique for recovering from a loss of situational awareness?
• Which of the following describes a feeling that can hinder situational awareness in flight?
• The US Standard Atmosphere values are based on averages calculated for which locations?
• Which type of spatial disorientation occurs when the disorientation is recognized?
• Vestibulo-ocular illusions arise from the eye's reaction to stimulation of which system components?
• Which type of vision primarily assists in night time or low light scenarios?
• Which factor has less control by the individual impacting performance?
• What is a common symptom of decompression sickness?
• What is defined as unwanted sound?
• According to USAF regulations, what is the minimum time to avoid flying after SCUBA diving?
• How is pressure defined in a physical context?
• What are the two main types of decompression?
• What does intensity measure in acoustic events?
• What percentage of the atmosphere is composed of Nitrogen?
• When might a person experience pain due to the formation of nitrogen bubbles?
• What is a crucial aspect of maintaining effectiveness while executing AGSM under G forces?
• What is the most effective way to prevent hyperventilation?
• What may occur if a person experiences an ear block and continues to descend?
• What type of spatial disorientation occurs when the pilot is incapable of recovery, even if it is recognized?
• How is continuous blood flow to the tissues achieved?
• What are the two types of aircraft pressurization systems?
• Which of the following is NOT a phase of respiration?
• What physiological action is accomplished by the contraction of the diaphragm and external intercostal muscles?
• What can a pilot use to help mitigate stress affecting flight performance?
• What visual element is primarily affected when there are no rods present during low-light conditions?
• If a pilot chooses to donate blood, how long will they be grounded due to the risk of hypemic hypoxia?
• What is defined as a change in speed without a change in direction?
• What term describes the factors that hamper or prevent proper situational awareness?
• Which gas law is depicted by changes affecting the ears, sinuses, and gastrointestinal tract due to pressure changes?
• What is the innermost layer of tissue in the eye, containing photoreceptors?
• Which measurement unit is used for atmospheric pressure?
• How should the Valsalva Maneuver be performed correctly?
• Which technique helps mitigate night vision challenges such as autokinesis?
• If input from each orientation system agrees with each other, the individual is considered what?
• What physiological environment supports normal human function?
• A delayed ear block results from breathing which of the following for an extended period of time?
• What is considered the most dangerous characteristic of hypoxia?
• Which one of the following is NOT considered a physiological factor affecting visual illusions?
• What atmospheric layer contains weather phenomena such as clouds and precipitation?
• What type of vision helps to orient a perceived object in space?
• Which type of vision is focused on recognizing 'what is it'?
• Your best color vision and maximum visual acuity occur in which part of the eye?
• What is NOT a symptom of hyperventilation?
• Which of the following can be perceived as hundreds of times brighter than the sun?
• Which factor is crucial for synchronization in performing AGSM?
• Which factor is essential for recovery from a loss of situational awareness?
• What is the primary gas involved in regulating ventilation rates?
• What happens when a person hyperventilates?
• According to the Law of Gaseous Diffusion, what happens to gases in a mixture?
• What is the primary function of red blood cells?
• The T-6 aircraft is equipped with which type of pressurization system?
• How much protection can combined hearing protective devices provide?
• If laser energy is sufficiently high, which part of the eye can suffer permanent damage?
• What is the recommended way to relieve pain from an ear block?
• What are the two types of hearing loss caused by high intensity noise?
• What is the process called where attention adapts to a cue leading to inattention?
• What type of breathing occurs without muscular effort?
• What is one function of the two pumps in the heart?
• What is a common treatment for an ear block caused by altitude changes?
• Which maneuver is usually effective in alleviating pain from a sinus block?
• Which symptom is commonly associated with motion sickness?
• What is one of the steps for treating hyperventilation?
• What is one sign of hypoxia?
• Visual illusions are a form of what kind of issue?
• During a rapid decompression, the normal time of useful consciousness can decrease by as much as what percentage?
• Which of the following is the primary cause of hyperventilation?
• Which term describes a change in direction without a change in speed?
• What does Charles' Law describe about the pressure of a gas at constant volume when temperature changes?
• Which hypoxia is associated specifically with low levels of oxygen reaching the bloodstream?
• Which factors involve elements you have some control over, such as alcohol and medication?
• Which atmospheric zone extends from sea level to approximately 10,000 feet?
• What type of hypoxia can also be caused by conditions such as shock or cold temperatures?
• What unit is used to measure intensity?
• What is the most widely accepted cause of motion sickness?
• Which symptom is associated with hyperventilation?
• What should be done after administering oxygen to an individual affected by DCS?
• Which force is described as working against gravity on the human body?
• Which environmental factor does NOT affect daytime visual illusions?
• What role does mental preparation play in effective AGSM performance?
• Which of the following is a symptom of hypoxia?
• How many G's of protection does an Anti-G suit provide?
• In aviation, what is the significance of understanding different types of hypoxia?
• What is a by-product of the combustion of plastics and other synthetic materials found on aircraft?
• Focal vision provides maximum acuity and depth perception in which scenario?
• What type of hypoxia occurs when the oxygen-carrying capacity of the blood is diminished?
• Which type of hypoxia results from a reduction of PO2 in the lungs, often due to low barometric pressure?
• What is the focusing of attention on a limited number of cues to the exclusion of others?
• Which of the following best describes the standard lapse rate?
• True or False: Maximum scanning effectiveness is achieved by a series of short, regularly spaced eye fixations.
• What is the first step in treating DCS?
• What causes the eyes to appear to focus at approximately 3 meters in front of the face?
• What should you avoid doing to prevent autokinesis during night missions?
• What is situational awareness crucial for during a flight?
• What is the impact of dehydration on flying performance?
• Which system is responsible for detecting changes in orientation and movement due to its components in the inner ear?
• Where are the most significant changes in atmospheric pressure observed?
• What physical factor can significantly affect daytime visual illusions?
• A delayed ear block can occur up to how many hours after landing?
• What describes a situation where a learned response becomes inappropriate in a new scenario?
• Which of the following best describes the physical symptoms of the chokes?
• Which of the following is NOT a factor influencing hypoxia?
• What connection helps equalize pressure in the middle ear?
• What happens to the oxygen supply during a rapid decompression?
• What is one potential effect of exposure to low barometric pressure in aviation physiology?
• Which level is slower but less prone to illusion and habit pattern interference?
• What can be a common emotional response signaling a potential lose of situational awareness?
• What involves visual contrast of objects against their backgrounds and shapes of targets?
• Which of the following is one of the three major somatogyral illusions?
• What acronym can be used when reporting a laser incident after landing?
• Which type of hypoxia is characterized by reduced cardiac output or restricted blood flow leading to decreased oxygen delivery?
• What assists the eye in acquiring a target effectively?
• What should pilots focus on during repetitive G force exposure for effective AGSM practice?
• What level requires checking on actions when riding a bike or flying an airplane?
• Which component is vital for plant life found in the atmosphere?
• Which physical state can adversely affect pilot performance during flight?
• What is a recommended method to prevent a delayed ear block?
• What are examples of practices that help prevent loss of situational awareness in aviation?
• What is considered a normal respiratory rate for adults?
• Which of the following is not a unique function of the atmosphere?
• What are the US Standard Atmosphere readings at sea level?
• What is a common result of severe disorientation during flight?
• What term describes an oxygen deficiency that can impair function?
• In how many second cycles is air exchanged to maintain optimum pressure?
• Which of the following is NOT a recognized sign of hypoxia?
• Which type of photoreceptor is more concentrated in the area of the retina used for night vision?
• What is the significant feature of the Space Equivalent Zone?
• The primary cause of histotoxic hypoxia in a crew member is which of the following?
• Which type of acceleration does not involve changes in speed?
• What occurs when there is too much information to attend to at one time?
• Which type of tracking is significantly impaired with vibration?
• What type of spatial disorientation can lead to controlled flight into terrain?
• Which state can be enhanced by analyzing attention threats?
• What measures can provide adequate protection against DCS?
• What branches out from a single arteriole and allows for diffusion of substances?
• How many chambers are found in the human heart?
• What describes simultaneous change in both speed and direction?
• Which type of vision constitutes the remainder of the visual field and is primarily used to orient oneself in the environment?
• Complacency as a cue for recognizing loss of situational awareness is characterized by what?
• Which layer of the eye contains millions of photoreceptors for image detection?
• Which part of the lungs are described as tiny air sacs?
• On average, how many times per minute does air exchange occur in adults?
• What term describes failure to follow established protocols that can lead to situations of compromised situational awareness?
• What spatial processing capability is associated with the subconscious level?
• What is a main characteristic of peripheral vision?
• Which concept hinders situational awareness due to focusing too narrowly?
• What type of pressure is created by the weight of atmospheric gases?
• At what altitude do ear problems occur more frequently due to greater pressure changes?
• Which structure does NOT belong to the major structures of the respiratory system?
• What are the primary functions of aircraft pressurization?
• Which area is most likely affected by trapped gas disorders?
• What gas contributes 0.03% to the composition of the atmosphere?
• What is commonly referred to as the "seat of the pants" sense?
• Which gas law explains the relationship between the amount of gas in a solution and its partial pressure?
• What type of blood vessel returns blood to the heart from the capillaries?
• Which gas law states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of each gas in the mixture?
• Which of the following is a step in treating hypoxia?
• Which type of decompression is easily recognized and can cause serious injury or death?
• What are the two key characteristics of noise?
• In which atmospheric zone is inadequate oxygen available to sustain normal physiological functions?
• At which level are we capable of performing multiple tasks quickly?
• What can excessive motion lead to in terms of symptoms?
• Which law illustrates the behavior of gases under varying temperature and pressure conditions?
• At which level are we best at processing one task at a time?
• In spatial disorientation scenarios, recognizing the disorientation is most crucial in which type?
• What atmospheric zone extends from approximately 10,000 feet to 50,000 feet?
• What is a common effect of rapid ascent when flying?
• What is a primary aspect of Dalton's Law in terms of gas mixture behavior?
• What does a pressure altimeter convert atmospheric pressure data into?
• What is one potential consequence of not performing the AGSM correctly?
• What type of decompression sickness (DCS) affects the brain and/or spinal cord due to nitrogen bubbles?
• What type of photoreceptors are most dense at the periphery of the retina?
• Which personal ability is crucial in helping to prevent motion sickness?
• Upon exposure to a laser, what should you do first?
• What term is used to describe the inability to accurately orient oneself with respect to the earth's horizon?
• What is the term for the force being applied from the feet towards the head?
• What effect does fatigue have on visual perceptions during flight?
• What enables us to see gray tones in dim light?
• What type of acceleration indicates a change in speed and direction simultaneously?
• The fovea is responsible for a second type of what occurring during night vision?
• Which of the following choices describes the three varieties of cones?
• What are the three types of G forces?
• What type of factors include elements such as flight weather and aircraft design?
• In relation to the ocular system, what does 'acuity' refer to?
• What action is recommended first when dealing with hypoxia?
• What is the main function of the diaphragm in respiration?
• What is the term for the misperception of how much time has passed?
• When should the AGSM be initiated to be fully effective?
• What force is applied to the body from the front or back?
• Which factor does NOT affect oxygen delivery to the tissues?
• Smoking cigarettes prior to flying increases levels of what substance in the bloodstream, impacting susceptibility to hypemic hypoxia?
• How does understanding timing impact the AGSM process?
• What is the most effective method for equalizing pressure in the middle ear?
• Is it safe to fly or participate in altitude chamber flight if you have an upper respiratory infection but take medication?
• Which physiological factor can influence daytime visual illusions?
• Which of the following describes skin manifestations of decompression sickness?
• Which organs are stimulated to cause somatogravic illusions?
• What is the primary purpose of the atmosphere?
• What type of decompression may be difficult to detect and can lead to incapacitation if unrecognized?
• What is the lowest physiological zone that the human body is adapted to?
• What can result from improper timing of the AGSM?
• Which type of hypoxia occurs when cells are unable to utilize oxygen, often due to toxins?
• Which factor is another determinant of the effects of G Force on the body?
• What is the term used to describe one oscillation per second?
• What is the temperature decrease rate with altitude up to about 35,000 feet?
• In low light conditions, which type of vision is primarily used?
• What physical condition can impair an individual’s tolerance to hypoxia?
• What is the active component of respiration?
• What is the intended outcome of properly applying the AGSM technique?
• Which atmospheric zone would require supplemental oxygen for sustained physiological function?
• What is the required minimum time before a flight during which alcohol consumption is restricted according to AFI 11-202, VOL 3?
• Which gas law would help explain the varying concentration of gases in the atmosphere at different altitudes?
• What condition may lead to stagnant hypoxia due to sitting very still for extended periods?
• Which G force relates to gravitational impact from vertical movement?
• In which three orientations are the canals of the vestibular system positioned?
• Why is the somatosensory system ineffective as an orientation system during flight?
• What two areas does the Valsalva Maneuver equalize pressure between?
• Which term describes the average pressure and temperature readings for standard atmospheric conditions?
• What is hyperventilation primarily characterized by?
• The phenomenon where nitrogen bubbles come out of solution in body tissues during ascent is explained by which gas law?
• What term refers to a state that occurs when you are under challenged?
• Which type of spatial disorientation is considered the most dangerous?
• Approximately what percentage of blood is made up of plasma?
• During ascent, which structure allows excess pressure in the middle ear to escape with little effort?
• What bodily process can lead to a delayed ear block?
• Which maneuver involves closing the mouth, pinching the nose, and exhaling?
• Recognizing unresolved discrepancies in a flight can be an indicator of what?
• What is the term for hearing loss due to damage to the hair cells of the cochlea?
• Which part of the mind is known as a serial processor?
• The vestibular system consists of which two subsystems?
• What does TUC stand for in relation to hypoxia?
• What term describes the process of exhalation, which does not require muscular effort?
• What is the natural point on the retina where the lens focuses an image called?
• What is termed when personal motivation does not align with mission goals?
• What factor can decrease night visual acuity due to the sensitivity of rods?
• According to spatial awareness principles, which factor is critical for safe flying?
• What describes the danger that arises from intimidation by a supervisor?
• What are the major components of the cardiovascular system?
• Delayed DCS can occur within how many hours after flying?
• What can help mitigate motion sickness by providing visual information?
• In which part of the lung do diffusion processes occur for oxygen and carbon dioxide?
• This gas law explains how high ambient altitude reduces the availability of oxygen.
• What is the primary concern at altitudes above 50,000 feet?
• How can descent below altitude generally affect pain associated with "the bends"?
• Which type of target is easier to detect?
• What does atmospheric pressure affect in weather systems?
• What is the main function of the lungs in the respiratory system?
• With which type of pressurization system does the pressure difference increase with altitude?
• What type of photoreceptors are responsible for seeing details in color under bright light conditions?
• Which type of hypoxia is characterized by a deficiency in oxygen due to low atmospheric pressure?
• Somatogyral illusions are primarily caused by stimulation of which component?
• Which atmospheric zone is considered extremely hazardous for the human body?
• What commonly causes restriction of the Eustachian tube opening?
• What is the most important factor in the control of ventilation under normal conditions?
• What term refers to the interruption of conscious attention by a non-task-related cue?
• What can occur if there is a mismatch between the orientation systems?
• Which factor does NOT affect the incidence and severity of DCS?
• What effect can cause pilot disorientation during flight due to false visual input?
• At what cabin altitude does the USAF require supplemental oxygen due to low PO2?
• What maneuver is also referred to as the "hook" maneuver?
• What can inflammation or infection restrict in terms of ear health?
• What happens to an oxygen cylinder when it is taken to a higher altitude according to Charles' Law?
• What should not be consumed to prevent discomfort when flying at high altitudes?
• Which of the following provides the strongest and usually the most reliable orientation information during flight?
• What type of hypoxia occurs when oxygen delivered to the cells cannot be utilized for energy production?
• Hair-like structures that filter inspired air are found in which part of the respiratory system?
• What is the most immediate requirement after a rapid decompression?
• Which two aspects are considered challenging when performing the AGSM?
• If descent continues with an ear block, which two issues may arise?
• Which two structures in the eye refract light and focus it on the retina?
• How can vibration energy be transferred to the body?
• The subconscious level's response to tasks is affected by what external factor during vibration?
• Which illusion is linked specifically to semicircular canal stimulation?
• What term is used for when too many cues compete for attention simultaneously?
• What is the term for the amount of pressure that a single gas contributes to the total pressure of a mixture?
• What term is used to describe the number of oscillations per second?
• What is one of the first steps to take if exposed to a laser during flight?
• What directly influences the effect of G Force?
• Exposure to which substance can impair visual acuity at night?
• To improve night vision, a target should be focused approximately how many degrees off the fovea?
• What term captures the personal motivation to reach a destination that competes with the safe completion of the mission?
• Why is cyclic breathing important in the AGSM?
• What is commonly referred to as "the bends"?
• What should you do to help alert other aircraft about a laser incident?
• What plays a fundamental role in determining hearing damage from noise exposure?
• What is a potential result of the evolution of gas from tissues during rapid ascent in aviation?
• Which system transports and distributes nutrients and oxygen to the tissues?
• True or False: Hyperventilation and hypoxia can be confused and should have identical corrective procedures applied.
• Which type of hypoxia can be caused by inhaling cyanide?
• What are common symptoms of neurological manifestations?
• What is the approximate total visual field range for an individual?
• Which part of the eye helps to provide a detailed view of central vision and vibrant colors?
• What is the process our body uses to exchange gases with our environment?
• What type of vision is limited in its ability to perceive color due to a decreased number of cone cells?
• Which of the following best describes the driving force behind our actions necessary for meeting goals in a flying environment?
• What does Boyle's Law state regarding gas volume and pressure when temperature remains constant?
• When performing the AGSM, what should be achieved through correct timing and coordination?
• When engaged in formation flying at night, what breathing technique is recommended?
• During which part of a G Force experience should the AGSM be initiated?
• What is the most common cause of G-LOC?
• True or False: Many individuals find their hypoxia symptoms to be unpleasant.
• Which pressurization system maintains a constant cabin pressure until a preset differential is achieved?
• When an individual places unnecessary demands on themselves to complete a mission, it is referred to as what?
• What term describes the vision processed at a higher level of consciousness?
• How is competitiveness and aggressiveness influenced by crew members described when it undermines safe mission performance?
• What is a common effect of vibration on crew members?
• Which part of the mind is recognized as a parallel processor?
• What type of vision should be used when scanning for traffic to avoid mid-air collisions?
• What phenomenon does Henry's Law explain when a can of soda is opened?
• What might slight swelling of the skin indicate in the context of DCS?
• Which of the following is NOT a sign of hyperventilation?
• What is the role of capillaries in the circulatory system?
• What term describes the continuous perception of self and aircraft in relation to the flight environment?
• What is identified as the leading factor in loss of situational awareness?
• Which type of hypoxia results from inadequate blood flow to tissues?
• Who should be notified when encountering lasers during flight?
• What physical phenomenon can be experienced during a rapid decompression?
• Which of the following describes a conscious response to hyperventilation symptoms?
• Which atmospheric zone exists above 50,000 feet?
• When riding a bike or flying an airplane, which level is primarily used for operational control?
• A slow decompression can occur due to which of the following?
• What is the force applied from the head towards the feet known as?
• What does the acronym I'M SAFE represent in aviation safety?
• Hyperemic hypoxia stems from what specific factor in relation to blood capacity?
• Which of the following structures is primarily responsible for carrying air to the lungs?
• Which gas law is concerned with the effect of temperature on gas pressure, assuming constant volume?
• During a pressure drop in which zone might altitude sickness occur?
• What type of force affects tracking ability when vibrations are present?
• Hyperventilation and acceleration forces can lead to which type of hypoxia?
• Which cues indicate a potential loss of situational awareness?
• What area of the retina is known as the anatomical blind spot due to the absence of photoreceptors?
• Which structure acts as the windpipe in the respiratory system?
• A SCUBA device significantly increases what risk factor?
• What should you do until symptoms of hypoxia disappear?
• Which eye structure is primarily responsible for bending light to focus images?
• What occurs when the ability of the cochlea to convert frequencies to electrical signals is lost?
• Which type of hypoxia can result from blood donation or bleeding injuries that deplete red blood cells?
• Which factor can hinder effective pressure equalization during ascent?
• Which condition may present symptoms similar to those of a stroke?
• What should you do after reaching a stable breathing rate during hyperventilation treatment?
• What term refers to the size of G Force applied to the body?
• What phenomenon can induce a sense of spinning when there is no actual rotation occurring?
• Which of the following is NOT one of the four orientation systems?
• What urgent action should be taken when treating hyperventilation?
• What is the driving force for the flow of oxygen from the lungs to the site of use?
• Which of the following is NOT a major component of the cardiovascular system?
• Which of the following is NOT a physical indication of a rapid decompression?
• What component of blood is responsible for clotting?
• What is the primary function of focal vision?
• What is the term for when it becomes impossible to open the Eustachian tube due to pressure differential exceeding 80 mmHg?
• What is the term for the disorder caused by nitrogen bubble formation in the body?
• What is defined as the rapid movement of an object back and forth?
• What physiological effect does the AGSM primarily aim to counteract?
• Which type of awareness allows multitasking during flight?
• In the context of respiration, what does diffusion specifically refer to?
• What is the primary timing error associated with the Anti-G Straining Maneuver (AGSM)?
• The function of which structures is crucial for detecting gravity and linear acceleration in the vestibular system?
• What should crew members participating in unpressurized high-altitude flights avoid to reduce the risk of trapped GI gas?
• What is the central portion of the vision field primarily used for?
• Which component is essential for the gas exchange between alveoli and blood capillaries?
• What is the primary disadvantage of aircraft pressurization?
• What type of hearing loss occurs when parts of the ear that transmit mechanical energy fail?
• What substance do otoliths contain, which helps with their function?
• What is a temporary loss of hearing after exposure to loud noise called?