Private Pilot-human Performance And Limit 01

Nitrogyn 78%,oxygen 21%,other gases 1%

Haemoglobin is a protein found in red blood cells that binds to oxygen in the lungs and carries it to the body's tissues. This allows oxygen to be delivered to cells for metabolism and energy production. Therefore, the main function of haemoglobin is to transport oxygen around the body.

As altitude increases, the level of oxygen in the air decreases. Alcohol is a depressant that affects the central nervous system and impairs cognitive and motor functions. At higher altitudes, the body already has reduced oxygen levels, and adding alcohol further exacerbates the effects. This can lead to increased intoxication and a higher risk of alcohol-related accidents and health issues. Therefore, the effect of alcohol tends to increase with increasing altitude.

The troposphere is the inner layer of the atmosphere. It is the lowest layer and extends from the Earth's surface up to about 10-15 kilometers. This layer is where weather phenomena occur and where most of the Earth's air mass is located. It contains the majority of the atmosphere's gases, including oxygen, nitrogen, and carbon dioxide. The troposphere is characterized by decreasing temperature with increasing altitude, which is why it is responsible for weather patterns and the formation of clouds and precipitation.

An increase in carbon dioxide in the blood triggers a response in the body to increase respiration rate. This is because carbon dioxide is a waste product of cellular respiration and needs to be eliminated from the body. When carbon dioxide levels rise, it indicates that the body is not efficiently removing this waste product. To compensate, the body increases respiration rate to bring in more oxygen and remove carbon dioxide through exhalation, restoring the balance. Therefore, an increase in carbon dioxide in the blood causes an increase in the respiration rate.

Raising the flaps during landing can be dangerous for two reasons. Firstly, it can distract the pilot from their main task of safely landing the aircraft. Secondly, in aircraft with retractable undercarriage, there is a possibility of accidentally raising the undercarriage instead of the flaps, which can lead to a loss of control or damage to the aircraft. Therefore, both of these reasons make it necessary to not raise the flaps during landing.

The given answer states that information in long term memory cannot be demonstrated to be lost. This means that there is no evidence or proof to show that information stored in long term memory can be permanently forgotten or erased. It implies that even if we cannot recall or retrieve certain information from long term memory at a given moment, it does not necessarily mean that the information is completely lost.

The correct answer is "I can do it". The "macho" attitude is characterized by overconfidence and a belief that one is capable of handling any situation without considering the risks or consequences. This attitude can lead to reckless behavior and a disregard for safety measures.

Standardisation is the most important consideration in display layout because it ensures consistency and uniformity in the design. By following established standards, the layout becomes more user-friendly and familiar to the audience. Standardisation also helps in creating a cohesive and professional look, making it easier for users to navigate and understand the information presented. It allows for efficient communication and reduces confusion, ultimately enhancing the overall user experience.

The correct answer is O2 because oxygen is the most abundant gas in the Earth's atmosphere, making up about 21% of the air we breathe. It is essential for the survival of most living organisms as it is involved in cellular respiration, providing energy for metabolic processes. Oxygen is transported through the bloodstream and is used by cells to produce ATP, the energy currency of the body.

Cold temperatures can increase susceptibility to hypoxia. When exposed to cold, the body constricts blood vessels in order to conserve heat and maintain core body temperature. This constriction can reduce blood flow to certain areas, including the lungs, leading to decreased oxygen supply. Additionally, cold air can cause irritation and inflammation in the airways, making it harder for oxygen to reach the bloodstream. Therefore, cold temperatures can exacerbate the effects of hypoxia and make individuals more susceptible to its symptoms.

The retina is responsible for detecting light and converting it into electrical signals that the brain can interpret. When light levels change, the cells in the retina undergo chemical changes to adjust the sensitivity of the eye. This allows the eye to function optimally in both bright and dim lighting conditions. Chemical changes in the pupil and the lens do not directly contribute to the eye's adaptation to light levels.

This answer suggests that the given exercise increases the demand for oxygen in the body and also increases the severity of hypoxia, which is a condition characterized by a lack of oxygen supply to the tissues. This means that the exercise puts additional strain on the body's oxygen resources and exacerbates the already existing oxygen deficiency.

An approaching aircraft that is on a constant bearing represents absolutely no risk of collision because when two objects are on a constant bearing, it means they are on a collision course and will eventually collide. Therefore, if the approaching aircraft is on a constant bearing, it indicates that it will not collide with the other aircraft, eliminating any risk of collision.