TC 3-04.93

Question 1

What are the three types of vision?

Answer 1

photopic
scotopic
mesopic

Question 2

What are the three types of spatial disorientation? describe them.

Answer 2

Unrecognized: the the Pilot has no idea his senses are in conflict with reality
recognized: the pilot may think there is an issue with their flight controls or that there instruments are malfunctioning
Incapacitating: the pilot is no longer able to control the AC

Question 3

What are the self-imposed stressors?

Answer 3

Drugs, Exhaustion, Alchohol, Tobacco, Hypoglycemia

Question 4

What are the types of hypoxia?

Answer 4

Hypoxic hypoxia, histotoxic hypoxia, Hypemic hypoxia, and stagnant hypoxia

Question 5

Describe the different phases of fatigue

Answer 5

Acute: fatigue accumulated throughout a regular sleep cycle. becoming drowsy after being awake for 16 hours.
Chronic: Several episodes of Acute fatigue without sufficient rest periods.
Motivational burnout: chronic fatigue left untreated for too long. the individual shuts down.

Question 6

Define elevator illusion

Answer 6

a G-excess illusion whereby a false sense of pitch may be experienced in the head.

Question 7

What are methods for preventing hypoxia?

Answer 7

limit time at altitude
Supplemental oxygen
Pressurize cabin

Question 8

Name the different stages of hypoxia

Answer 8

indifferent
compensatory
disturbance
critical

Question 9

How long does it take dark adaptation to occur

Answer 9

30-45 minutes

Question 10

How can crew members equalize pressure during descent?

Answer 10

yawning
tensing throat muscles
swallowing
valsalva maneuver

Question 11

The most important actions for treating fatigue are______ and getting ____ (not drug induced) sleep.

Answer 11

resting, natural

Question 12

What are the three types of hearing loss?

Answer 12

prebyscusis
sensoneuriual
conductive

Question 13

What are the three types of light adaptation and what viewing periods are they associated with?

Answer 13

photopic: during day light and high levels of artificial light
mesopic: during twilight as well as during nights with a full moon
scotopic: during low light such as partial moon light or star light

Question 14

What are the four mechanisms the body uses to maintain heat balance?

Answer 14

radiation
convection
conduction
evaporation

Question 15

Linear accelerration and deceleration stimulate what organs?

Answer 15

Otolith organs

Question 16

What are the visual illusions?

Answer 16

Vection, cratering, size constancy, shape constancy, size-distance illusion, confusion with ground lights, fascination, false horizon, height-depth perception, structural, aerial perspective, autokinesis

Question 17

hat are the vestibular illusions?

Answer 17

Somatogyral
somatograiv
oculogravic

Question 18

You are flying in a low contrast environment with low illumination under NVGs over tall grass. You are having a difficult time maintaining a stable hover. Which visual illusion is most likely to occur in this scenario?

Answer 18

Vection (induced motion) illusion

Question 19

What is vection?

Answer 19

The false sense of motion.

Question 20

State of reduced visibility whereby spatial situational awareness and aircraft control cannot be maintained within normal precision.

Answer 20

Degraded visual environment (DVE)

Question 21

What type of spatial disorientation would cause a pilot to fly lower while watching the setting sun?

Answer 21

Height-depth perception

Question 22

What factors predispose soldiers to heat in juries.

Answer 22

History of heat illness
Alcohol within 24 hours
Being fat