题目内容

The needed information to fly an ILS approach includes the radio frequencies used by the ILS components or ____ and the minimum visibility requirements prescribed for the specific approach.

A. VOR
B. DME
C. NDB
D. navaids

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ILS uses a combination of radio signals and, in many cases, high-intensity lighting ____ to enable a safe landing during Instrument meteorological conditions (IMC).

A. arrangement
B. lines
C. arrays
D. layout

An ILS consists of two ____ sub-systems, one providing lateral guidance (Localizer), the other vertical guidance (Glideslope or Glide Path) to aircraft approaching a runway.

A. individual
B. independent
C. incident
D. innovative

An ILS consists of ____ guidance (Localizer) and vertical guidance (Glideslope or Glide Path) to aircraft approaching a runway.

A. lateral
B. horizontal
C. longitudinal
D. level

Aircraft guidance is provided by the ILS receivers in the aircraft by performing a ____ depth comparison.

A. adjustment
B. modification
C. modulation
D. rectification