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Block 12 > Unit 1 > Flashcards

Unit 1 Flashcards

1
Q

Translates air pressure into height above sea level and is not a good indicator of aircraft altitude when flying over land

A

Aneroid altimeter

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2
Q

This uses transmitted radio waves to measure aircraft height above the earths terrain

A

Radar altimeter

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3
Q

Formula used for radar altimeter

A

Distance = Time x Constant

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4
Q

What is the frequency range of CARA

A

4.3 GHz +/- 50 MHz

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5
Q

Ground speed of CARA

A

1800 knotts

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6
Q

Maneuver angle for fixed wing at 50,000 feet and 5000 feet

A

+/- 30° at 50,000 ft

+/- 60° at 5000 ft

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7
Q

Maneuver angle for rotary wing at 50,000 feet and 5000 feet

A

+/- 10° at 50,000 ft

+/- 30° at 5000 ft

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8
Q

Power requirement of CARA

A

28 VDC

26 VAC at interface adapter

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9
Q

What are the components of the Major component group #1

A

Receiver transmitter and height indicator

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10
Q

What are the additional components group #2

A

Antennas, interface adapter, cable adapter, mounting adapter, voice warning generator

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11
Q

What component of the CARA is responsible for generating the transmitted frequency and processing the reflective signal representing the terrain below

A

Receiver/transmitter RT

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12
Q

What provides analog and digital data for display on the CARA

A

Receiver/transmitter RT

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13
Q

What is used to compensate for height of antennas above ground and length of cables from the RT to the antennas and is installed in the RT

A

Aircraft installation delay AID

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14
Q

What component on the CARA displays both analog and digital info provided from the RT and supplies a warning signal when altitude falls below

A

CARA Height Indicator

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15
Q

What component of the CARA contains all the operating controls for the system/circuitry

A

CARA height indicator

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16
Q

What range is the analog and digital on the CARA height indicator

A

Analog : 0-5000 ft

Digital : 0-50,000 ft

17
Q

What gives altitude warning in the CARA height indicator

A

VALI setting indicator

18
Q

Radiates/receives

A

Antennas

19
Q

What converts analog altitude data for used by other aircraft systems

A

Interface adapter

20
Q

What contains the circuitry that provides for isolation to the SRU level within the RT unit in the CARA

A

BIT processor

21
Q

Which self test is activated on power on and is undetectable
Occurs 2 to 3 times per second

A

Automatic self test AST

22
Q

What self test is a manual check of the RTN antennas and is a two-step process

A

Manual push to test PTT

23
Q

What is the two-step process in the manual push to test

A 
Step 1 : Analog pointer = 500 ft
              Digital display = 88888
              R/T Lamp lit for 1.5 secs
Step 2 : Analog pointer = 300 ft
              Digital display = 300 ft
              R/T Lamp lit is out
24
Q

What self test is during back shop and is activated by doing PTT with a jumper in the maintenance test harness

A

Maintenance built in test MBIT

25
Q

What will happen when there is a failure indication

A

“FAIL” on digital display, RT status light will be illuminated, analog pointer will indicate below zero

26
Q

System Integration on CARA uses what?

A

Analog altitude, low altitude warning, radar altimeter valid signal

27
Q

What system is a passive system and warns of impending danger to avoid ground impact it has audio and visual warning

A

Ground proximity warning systems GPWS

28
Q

What outputs does GPWS use

A

Analog altitude and low altitude warning

29
Q

What is an active system and digital system that integrates with autopilot to avoid impact? This initiates fly up commands and executed windshear functions

A

Ground collision avoidance system GCAS

30
Q

What outputs does the GCAS utilize

A

Analog altitude, low altitude warning, radar altimeter valid signal

31
Q

What integrates flight instruments, navigation systems, warning and caution information, and other aircraft systems

A

Control display system CDS

32
Q

What is used for pilot relief during flight and derives altitude right information

A

Automatic flight control systems AFCS

33
Q

What outputs does the CDS utilize

A

Analog altitude, low altitude warning, and radar altimeter valid signals

34
Q

What outputs does the AFCS utilize

A

Analog altitude and radar altimeter valid signals

Block 12 (4 decks)

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