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Follow on > Block 6 > Flashcards

Block 6 Flashcards

1
Q

Provides approximate location of underwater wreckage and activate upon immersion in fresh or salt water

A

Underwater acoustical beacon (UAB)

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2
Q

Frequency of the UAB

A

37.5 kHz

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3
Q

Maximum depth of the UAB

A

20,000 feet

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4
Q

Maximum range of the UAB

A

12,000 feet

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5
Q

How long will the UAB transmit

A

30 days

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6
Q

What is the UAB mounted onto

A

CVR and FDR

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7
Q

What aids in locating a crashed aircraft and activates by sudden deceleration force along the longitudinal axis

A

Emergency locator transmitter (ELT)

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8
Q

Three major components of the ELT

A

Control unit transmitter antenna

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9
Q

What is the VHF transmit frequency of the emergency signal of the ELT

A

121.5 MHz

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10
Q

What is the UHF transmit frequency of the emergency signal of the ELT

A

243 MHz

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11
Q

How long will the VHF AM and UHF transmit

A

Until its self-contained battery pack is exhausted or the system is reset

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12
Q

How long will the encoded digital message transmit for

A

24 hours

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13
Q

What kind of audio tone does a transmitter emit

A

A repeating downward sweeping audio tone

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14
Q

How many G’s transmitter built to withstand

A

100

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15
Q

What are the three switch positions of the transmitter in an ELT

A

Reset, on/arm, and off

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16
Q

What are the three switches on the control unit of the ELT

A

Test, auto, and reset

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17
Q

What switch is used when transporting the unit to and from the aircraft

A

Off switch

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18
Q

What switch bypasses the system impact sensor for testing purposes

A

Test Switch

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19
Q

What switch spring loaded to reset the system back to normal after testing or activation

A

Reset switch

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20
Q

What is the normal or standby switch

A

On/auto switch

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21
Q

What helps piece together the cause of an aircraft crash

A

Cockpit voice recorder (CVR)

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22
Q

What volts and hertz does the CVR system operate on

A

115 VAC and 400 Hz

23
Q

What are the components of the cockpit voice recorder

A

CVR, control unit, voice recorder test switch, remote area microphone

24
Q

What component has a 30 minute capacity and records over the previous recording

A

CVR

25
Q

What components does the control unit of the CVR compose of

A

Headset jack, test switch, meter, and controlled area microphone

26
Q

What component of the CVR provides a go or no go indication

A

Meter

27
Q

What component is used to bypass external power relay and it’s possible to test system on ground

A

Voice recorder test switch

28
Q

What component is dedicated to the fourth channel

A

Remote area microphone

29
Q

What component picks up and records voice signals and suppress engine in turbine noises

A

Remote area microphone

30
Q

What are the three purposes of the analog interphone

A

Crew to crew communication,

Ability to select key and modulate Monitor received audio from radio and navigational system

31
Q

Button used to key the radios and interphone systems

A

PTT

32
Q

Hearing yourself speak feedback through the headset

A

Side tone

33
Q

What interphone is used for crew to crew communication

A

Normal interphone

34
Q

Hands-free crew to crew communication

A

Hot mic

35
Q

Emergency crew to crew communication

A

Call

36
Q

Used to prevent ground loop feedback

A

Audio common ground

37
Q

What enables operators to select which radio they wish to key modulate and monitor

A

Interphone set control (ISC)

38
Q

How many positions does the rotary select knob have

A

Seven positions

39
Q

What enables the operator to monitor received audio signals from navigational receivers

A

Interphone monitor panel

40
Q

What is the bulkhead mounted assembly

A

Interphone station

41
Q

What two functions does the interphone station have

A

Transmit and receive

42
Q

What interconnects interphone system components

A

Interphone junction box (IJB)

43
Q

What uses the two button key method is typically used by the pilot and copilot stations

A

U92

44
Q

What uses the one button keying method is used by everyone else

A

U94

45
Q

What carries audio intelligence from microphone selected system

A

Microphone audio line

46
Q

What carries audio between the ICS, monitor panels, or interphone stations to the U92 are U94 connected to headsets

A

Headset audio lines

47
Q

What grounds and shuts off receiver and turns transmitter on

A

Control key lines

48
Q

Carries all audio from interphone to the operators headset

A

HDST HI

49
Q

Return line for headset

A

HDST LO

50
Q

Carries the audio from the microphone to the interphone

A

MIC HI

51
Q

Return line for Microphone

A

MIC LO

52
Q

What interphone connection is used to select key and modulate

A

Interconnection with radios

53
Q

What interconnection uses audio lines only

A

Interconnection with navigational system

54
Q

What interphone connection provides audio for safety of flight an emergency warning systems

A

Interconnection with warning systems

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