AET Navigation Equipment 5

Question 1

When testing a VOR receiver, an approved VOR test facility (VOT) should produce what indication on a correctly functioning receiver?

Accepted Answer

000° radial with TO flag and centered CDI

Answer

A VOT transmits the 360° radial omnidirectionally; a properly functioning receiver tuned to a VOT should show 000° (or 360°) with a TO flag and a centered CDI within ±4°.

Question 2

What phenomenon causes GPS multipath errors?

Accepted Answer

Satellite signals arriving via reflected paths in addition to direct path

Answer

Multipath error occurs when GPS signals reflect off terrain, buildings, or aircraft structures and arrive at the antenna via indirect paths, corrupting the direct-signal measurement.

Question 3

What does the term 'CDI sensitivity' refer to in area navigation (RNAV) operations?

Accepted Answer

The crosstrack distance represented by full-scale needle deflection

Answer

CDI sensitivity refers to the crosstrack distance (in nautical miles) that represents full-scale deflection; it scales from ±5 NM en route to ±0.3 NM during approach.

Question 4

What is the primary advantage of a Ring Laser Gyroscope (RLG) over a conventional mechanical gyroscope in navigation systems?

Accepted Answer

No moving parts, resulting in higher reliability and faster startup

Answer

Ring Laser Gyroscopes have no moving parts, which eliminates wear and bearing friction, providing greater reliability, faster alignment, and longer service life than mechanical gyros.

Question 5

During an ILS approach, a glideslope pointer above center on the ADI/flight director indicates the aircraft is:

Accepted Answer

Below the glideslope — fly up

Answer

A glideslope deviation pointer above center means the glideslope beam is above the aircraft, so the aircraft is below the glideslope and must climb (fly up) to intercept it.

(AET) Aircraft Electronics Technician Practice Test

(AET) Aircraft Electronics Technician Practice Test

AET Navigation Equipment 5