Airport Engineering
According to I.C.A.O. the recommended length of air ports is decided on

All listed here
Sea level elevation
Effective gradient percentage
Standard sea level temperature (15°C)

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Airport Engineering
Assertion A : The ratio of arriving and departing aircrafts influences the airport capacity: Reason R : Landing operation is generally given priority over the taking off operation. Select your answer based on the coding system given below:

A is true but R is false
A is false but R is true
Both A and R is true and R is the correct explanation of A
Both A and R is true and R is not the correct explanation of A

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