1.

The relative velocity of the wind produces boundary layer close to the ground which ___________(a) decreases the wind speed with decrease in height(b) increases the wind speed with decrease in height(c) makes the wind speed unaffected(d) constantly increasesI got this question in an international level competition.This key question is from Effect of Wind on Climb Performance and Descent Performance topic in portion Climb and Descent Performance of Aircraft Performance

Answer»

Right choice is (a) decreases the wind speed with decrease in height

To EXPLAIN: The RELATIVE velocity of the wind produces BOUNDARY layer close to the ground which decreases the wind speed with decrease in height. This will further produce effects on the aircraft.



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