Which of the following is true concerning an aircraft that is flying at FL180 in the northern hemisphere, where wind is geostrophic and the true altitude remains constant?

Question

Question ATPL - Airline Transport Pilot license - Meteorology

QuizVDS · Accepted Answer

There is no cross wind

QuizVDS · Answer

Without knowing temperature at FL 180 this question can not be answered

QuizVDS · Answer

There is a cross wind from the right

QuizVDS · Answer

There is a cross wind from the left

Id 509 - ATPL - Which of the following is true concerning an aircraft that is flying at FL180 in the northern hemisphere, where wind is geostrophic and the true altitude remains constant?