問題詳情

24. Which devices have a mechanism in the propeller hub that can be operated remotely to changethe propeller pitch from a maximum design ahead pitch to a maximum design astern pitch?  
(A) Fixed angle propellers
(B) Fixed pitch propellers
(C) Detachable-blade propellers
(D) Controllable-pitch propellers

參考答案

答案:D
難度:簡單0.705882
統計:A(0),B(3),C(0),D(12),E(0)

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