超星 - 词汇学习一 - 查题吧

单选题

The ____ of the glideslope signal is arranged to define a glideslope of approximately 3° above ground level.

A. centerline
B. front
C. back
D. sideline

单选题

Localizer and glideslope carrier frequencies are ____ so that only one selection is required to tune both receivers.

A. separated
B. matched
C. paired
D. mated

单选题

Localizer and glideslope signals are displayed on an indicator in the instrument ____. This instrument is generally called the omni-bearing indicator or nav indicator.

A. board
B. panel
C. table
D. stand

单选题

The pilot controls the aircraft so that the indications on the instrument remain centered on the display. This ensures the aircraft is following the ____ centreline.

A. ILS
B. IGS
C. VOR
DME

单选题

____ guidance, shown on the instrument by the glideslope indicator, aids the pilot in reaching the runway at the proper touchdown point.

A. horizontal
B. vertical
C. parallel
D. precision

单选题

Some aircraft possess the ability to route ____ into the autopilot, allowing the approach to be flown automatically by the autopilot.

A. signals
B. commands
C. requirements
D. power

单选题

The localizer provides for ILS facility ____ by periodically transmitting a 1020 Hz morse code identification signal.

A. localization
B. identification
C. correction
D. recognition

单选题

The glideslope____no identification signal, so ILS equipment relies on the localizer for identification.

A. transmits
B. transfers
C. modifies
D. receives

单选题

Thunderstorms produce some of the most dangerous weather elements in aviation, and you should avoid _______ them.

A. to penetrate
B. penetrating
C. penetrated
D. penetration

单选题

Which of the following elements is not a condition necessary to create a thunderstorm?

A. unstable air
B. lifting action
C. strong wind
D. high moisture

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