相关题目
The CDI needle of the VOR indicator shows the pilot that his aircraft is not on course when it （ ） ．
（ ） is not a necessary step to use a VOR effectively for navigation.
（ ） guided approach is non-precision approach.
The VOR signals travel on a line-of-sight basis. This means （ ） ．
Radio beams transmitted by a VOR station are called （ ） ．
（ ） is not a feature of a basic VOR system.
Which of the following is not a part of the VOR indicator?
The fuel used on piston engine aircraft is （ ）.
ATC is a service used for the purpose of anti-collisions between aircraft; anti-collisions between aircraft and （ ） on maneuvering area, and expediting and maintaining an orderly flow of air traffic.
The most probable cause of a spark is from （ ） that discharges between refueling equipment and the airplane.
