NAOPM (TCAS & ILS- Finals)

Question 1

special system designed to reduce the incidence of Mid-air Collisions (MAC) between aircraft

Answer 1

Traffic alert and Collision Avoidance System

Question 2

According to ICAO, all aircraft with MTOW over _____ kg or carry more than ____ passengers are compulsory to equipped with TCAS.

Answer 2

• 5700 kg
• 19 passengers

Question 3

Aviation accident in which two or more aircraft come into contact during flight

Answer 3

Mid-air collision

Question 4

TCAS operates by actively interrogating other aircraft equipped with

Answer 4

Mode C or Mode S transponders

Question 4

What frequency does TCAS use to send signals

Answer 4

1030 MHz

Question 5

What frequency does TCAS use to receive signals

Answer 5

1090 Mhz

Question 6

TCAS predicts potential conflicts and issues advisories if a collision risk is detected​ by calculating this

Answer 6

Time to closest approach

Question 7

TCAS is also known as

Answer 7

Airborne Collision Avoidance System

Question 8

Two types of advisories

Answer 8

• Traffic Advisories
• Resolution Advisories

Question 9

Alerts pilots to the presence of nearby aircraft, prompting them to visually locate the potential threat.

Answer 9

Traffic Advisories

Question 10

Provide specific instructions to climb or descend to maintain safe separation between aircraft

Answer 10

Resolution Advisories

Question 11

TCAS equipment

Answer 11

• TCAS display
• TCAS antenna

Question 12

Ground-based radio beam transmitter that provides a direction to an aircraft approaching and landing on a runway

Answer 12

Instrument landing system

Question 13

ILS-types of runway approach

Answer 13

• Non-instrument runway
• Instrument runway (Non-precision runway & precision runway)

Question 14

ILS components

Answer 14

• Ground installation
• Airborne Equipments

Question 15

3 equipments for ground installation

Answer 15

• Ground localizer
• Ground glide path antenna
• Marker beacons

Question 16

2 equipments for airborne equipments

Answer 16

• Localizer & Ground plane antenna, ILS indicator
• Marker beacon antenna and indicator

Question 17

Provides horizontal navigation for ILS

Answer 17

ground localizer antenna

Question 18

Provides vertical navigation for ILS

Answer 18

Ground glide path antenna

Question 19

Provides aircraft’s height & distance to runway for ILS

Answer 19

Marker beacons

Question 20

Localizer operates in what frequency band

Answer 20

VHF band: 108 Mhz to 117 Mhz

Question 21

In localizer which side has 90 Hz modulation and which side has 150 Hz modulation

Answer 21

Left side: 90 Hz
Right side: 150 Hz

Question 22

In glide slope which side has 90 Hz modulation and which side has 150 Hz modulation

Answer 22

Upper: 90 Hz
Lower: 150 Hz

Question 23

Marker beacon operates at a carrier frequency of

Answer 23

75 Mhz

Question 24

Distance from RWY and color of outer marker beacon

Answer 24

• 7.2 to 10km
• Blue

Question 25

Distance from RWY and color of middle marker beacon

Answer 25

• 1100 km
• Amber

Question 26

Distance from RWY and color of inner marker beacon

Answer 26

• 300m
• White