COMNAV (2)

Question 1

It is a ground-based system that provides the pilot with a SLANT DISTANCE to the DME transmitter.

Answer 1

Distance Measuring Equipment (DME)

Question 2

DME is a _______________ that works with an IFR-approved GPS or another approved navigation source.

Answer 2

secondary radar system

Question 3

DME is defined as a navigation beacon, usually coupled with a _______________.

Answer 3

VOR

Question 4

An aircraft can compute its distance to the beacon from the delay of the SIGNAL PERCEIVED by the aircraft’s DME equipment using the ________________.

Answer 4

speed of light

Question 5

DMEs can also provide _______________ and _______________.

Answer 5

• groundspeed
• time-to-station readouts

Question 6

2 modes for DME tracking

Answer 6

o one for searching the station and another

o for tracking the station using fewer signals

Question 7

symbol of the DME

Answer 7

square

Question 8

It is a ground-based navigation aid used in aviation.

Answer 8

Instrument Landing System (ILS)

Question 9

It provides guidance to pilots during the final
approach and landing phase.

Answer 9

Instrument Landing System (ILS)

Question 10

It allows an aircraft to approach until it is _____________ over the ground, within a _____________ of the runway.

Answer 10

200feet (61m)

1/2mile (800m)

Question 11

3 Components of the ILS

Answer 11

Localizer

Glideslope

Marker Beacons

Question 12

It provides lateral guidance to aircraft during the
approach.

Answer 12

Localizer

Question 13

Localizer consists of a _____________ radio transmitter.

Answer 13

highly directional

Question 14

Localizer uses _____________ to provide guidance to the left or right of the runway centerline.

Answer 14

amplitude modulation

Question 15

It provides vertical guidance, ensuring the aircraft maintains the correct descent path.

Answer 15

Glideslope

Question 16

Glideslope uses a _____________ technique to provide vertical guidance to the aircraft.

Answer 16

specific modulation

Question 17

It used as additional reference points during the
approach.

Answer 17

Marker Beacons

Question 18

3 types of marker beacon

Answer 18

outer marker

middle marker

inner marker

Question 19

The _________ indicates the initial approach segment.

Answer 19

outer marker

Question 20

The _____________ signifies the intermediate segment.

Answer 20

middle marker

Question 21

The _______________ identifies the final approach segment.

Answer 21

inner marker

Question 22

It located 4-7 miles from the runway threshold.

Color BLUE

Answer 22

OMI – O

Question 23

It placed about 3500ft from the runway.

Color YELLOW

Answer 23

OMI – M

Question 24

It placed between the MM and runway threshold.

Color WHITE

Answer 24

OMI – I

Question 25

2 Approach Types

Answer 25

Precision Approach

Non-Precision Approach

Question 26

It characterized by a high level of accuracy and
reliability.

Answer 26

Precision Approach

Question 27

It providing both lateral and vertical guidance.

Answer 27

Precision Approach

Question 28

It provide lateral guidance only, typically using a
navigation aid like a VOR.

Answer 28

Non-Precision Approach

Question 29

2 Categories of ILS Approach

Answer 29

Category I

Category II & III

Question 30

They are the most common.

Answer 30

Category I ILS approaches

Question 31

These approaches provide adequate guidance
for most commercial aircraft.

Answer 31

Category I ILS approaches

Question 32

They are used in low visibility conditions.

Answer 32

Category II and III ILS approaches

Question 33

These approaches require specialized equipment and training.

Answer 33

Category II and III ILS approaches