Sign up to unlock all our services and 1230 corrected and explained questions.
Question 53-1 : A stress reaction is ? [ Instruction DJI ]
The non specific response of the body to demands placed on a person.
It was discovered that the body's stress response consists of a predictable, non specific, three stage pattern of physiological responses the alarm stage, the adaptive/resistance stage and the exhaustion stage. not everyone experiences all three stages..the alarm stage is the fight or flight response that prepares a person to meet a challenge or threat. the person experiences the changes characteristic of the first exposure to a stressor which include anxiety, panic, fear, racing thoughts, increased heart rate, increased blood pressure, headaches, muscle tension, gastrointestinal distress, etc...the adaptive/resistance stage is the stage during which the body may return to its pre excited state and recovers from the physiological strains of the alarm stage once the stressor is eliminated...the exhaustion stage is reached only when the person becomes stuck in the alarm stage or goes through the alarm and resistance stages too often.
Question 53-2 : The retina consists of two different types of cells that pick up respectively ?
Under dim and high light.
The human retina has approximately 5 million cones and 120 million rods..signals from the rods and cones converge on ganglion and bipolar cells for preprocessing before they are sent to the lateral geniculate nucleus. at the center of the retina the point directly behind the lens is the fovea, which contains only cone photoreceptor cells this is the region capable of producing the highest visual acuity..oxygen deficiency, acceleration positive or negative and poisons cause disturbances.
Question 53-3 : Personal tolerance to a workload depends on 1 your health condition 2 your knowledge, your experience and your savoir faire 3 your stress level 4 your state of fatigue choose the most complete exact combination. ?
1 2 3 4.
Question 53-4 : Central vision ?
Enables details and is sensitive to colors.
The human retina has approximately 5 million cones and 120 million rods..signals from the rods and cones converge on ganglion and bipolar cells for preprocessing before they are sent to the lateral geniculate nucleus. at the center of the retina the point directly behind the lens is the fovea, which contains only cone photoreceptor cells this is the region capable of producing the highest visual acuity..oxygen deficiency, acceleration positive or negative and poisons cause disturbances.
Question 53-5 : Peripheral vision ?
Is sensitive to movement and changes in brightness.
The human retina has approximately 5 million cones and 120 million rods..signals from the rods and cones converge on ganglion and bipolar cells for preprocessing before they are sent to the lateral geniculate nucleus. at the center of the retina the point directly behind the lens is the fovea, which contains only cone photoreceptor cells this is the region capable of producing the highest visual acuity..oxygen deficiency, acceleration positive or negative and poisons cause disturbances.
Question 53-6 : Which of the following abilities will not improve the preparation of a flight by multiples contributors ?
Ability to persuade others to follow their own point of view.
Question 53-7 : Which statement is correct ?
Problems in the personal relationships between a team are likely to hamper the communication process.
Question 53-8 : Which of the following statements is true ?
Stressors accumulate thus increasing the likelihood of exhaustion.
Question 53-9 : The human eye has both horizontal and vertical field of view fov of approximately ?
200° and 130°.
Question 53-10 : The human circadian rhythm is based on a cycle of about ?
24 hours.
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.
Question 53-11 : Colour blindness ?
May be subtle and only detected using specialised tests.
Color blindness color vision deficiency is the inability or decreased ability to see color, or perceive color differences, under normal lighting conditions. it does not affects acuity. there is no known treatment for colour blindness.
Question 53-12 : A routine behaviour based on our habits ?
Allows a very low consumption of resources, it generates ease and availability.
Question 53-13 : An rpas pilot who is working outside and has prolonged exposure to vehicle exhaust fumes ?
Is at risk of carbon monoxide poisoning.
Carbon monoxide is a colo ess, odo ess, tasteless gas that is a product of incomplete combustion..haemoglobin, the oxygen carrying chemical in the blood, picks up carbon monoxide over 200 times more readily than it picks up oxy thus, even minute quantities may result in pilot incapacitation..the symptoms of carbon monoxide poisoning are insidious. initially, there is an inability to concentrate, thinking becomes blurred, and subsequently dizziness and headache develop. if any of these symptoms are noticed, pilots should, if oxygen is available, used it..smoking is a source of carbon monoxide. smokers carry some carbon monoxide in their blood all the time, and may have 5 to 10 percent of their haemoglobin saturated with carbon monoxide..this reduces the oxygen carrying capacity of the blood and smokers may become hypoxic at altitudes below 10 000 ft asl 3 050 m.
Question 53-14 : How can the process of learning be enhanced ?
By reinforcing successful performance.
You need to motivate the students and encourage them to succeed so that they remain interested and continue to learn. if you dwell on their mistakes, punish them or put pressure on them, you will demotivate them.
Question 53-15 : The process by which man becomes aware of the outside world informations by means of his senses is said ?
Cognitive.
Self-training and support Most questions are accompanied by an immediate explanation after validation. This instant feedback allows you to understand your mistakes without delay, which improves the effectiveness of self-training. You learn actively, independently. And if you need even more explanations, simply ask using the button below the question.
Exclusive rights reserved. Reproduction prohibited under penalty of prosecution.
