Final answer:
The validity of a Category 1 Medical certificate is 1 year for individuals over 40 and 3 years for those under 40. This timeframe applies to various age groups, ensuring pilots meet health requirements to fly.
Step-by-step explanation:
The duration of the validity of a Category 1 Medical certificate depends on the age of the individual. If an individual is over 40 years old, the Category 1 Medical is valid for 1 year. For those who are under 40 years old, the medical certificate remains valid for 3 years. This implies that for anyone between 10 and 20 years, between 20 and 30 years, or between 30 and 40 years, their Category 1 Medical would last for three years before requiring renewal. Conversely, those who are between 40 and 50 years, between 50 and 60 years, or more than 60 years, would need to renew their medical certificate every year.Therefore, the correct answer to the question regarding the validity of a Category 1 Medical certificate is C) Over 40: 1 year, Under 40: 3 years.