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T-6 Systems > Flight Instruments > Flashcards

Flight Instruments Flashcards

1
Q

The electronic instrument displays receive sensor data from what component?

A

The Air Data Computer

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2
Q

The EADI and EHSI operate in what modes?

A
  • Enroute

- Approach

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3
Q

If the pitch values approach their limits, red chevrons are used to indicate what?

A

Nearest direction for a level flight attitude recovery

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4
Q

The EHSI displays a 360° rotating compass scale divided into 5° and 10° increments and referenced to what?

A

A white triangular heading index (lubber line)

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5
Q

Pulling out the HDG knob does what?

A

Resets HDG bug to present aircraft heading

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6
Q

The upper left corner of the HSI displays what?

A
  • Distance to next selected point
  • Aircraft groundspeed
  • Time to go to next point
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7
Q

When the EHSI is in the HSI normal mode, pressing the MAP button changes the display to what mode?

A

Navigation map mode

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8
Q

The bearing pointer select buttons are used to cycle the EHSI bearing pointers through what three modes?

A
  • VOR navigation source display
  • GPS navigation source display
  • Declutter mode
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9
Q

On the EHSI, the course deviation bar indicates the centerline of the selected course relative to what?

A

Aircraft symbol

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10
Q

For ILS glidepath, what is displayed on the right side of the instruments with a green deviation pointer which moves in relation to the scale to indicate glidepath center with respect to aircraft position?

A

Stationary vertical scale

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11
Q

The VSI indicates what two things?

A
  • Direction of vertical motion

- Rate of motion

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12
Q

What range does the VSI show climbs or descents?

A

0 to 6000 feet per minute

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13
Q

The ASI Mach number window is blanked below what Mach?

A

.40 Mach

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14
Q

As altitude increases, max operation airspeed (Vmo) will do what?

A

Decrease

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15
Q

The baro-set correction knob is used to set what into the altimeter so it displays correct altitude indications?

A

Pressure

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16
Q

The standby instruments can be used for a limited time in the event of a failure of what primary system?

A

Electrical

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17
Q

What is the red and white “barber pole” on the ASI?

A

A velocity/Mach limiting pointer

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18
Q

How is the standby attitude indicator caged?

A

Pulling and turning the PULL TO CAGE knob

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19
Q

True or False: The standby altimeter is operated by static pressure from the primary pitot/static system

A

False

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20
Q

What does the AOA computer receive inputs from?

A
  • AOA vane
  • Flap position microswitch
  • Landing gear
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21
Q

What does the white triangle at 4.9 units on the AOA gauge indicate?

A

Max range

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22
Q

What does the white diamond at 8.8 units on the AOA gauge indicate?

A

Max endurance

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23
Q

What does the green arc on the AOA gauge indicate?

A

Normal approach speed

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24
Q

What does the red radial on the AOA gauge indicate?

A

Stall

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25
What does a higher the number on the AOA gauge indicate?
Greater the Angle of attack
26
What radial on the AOA gauge indicates a stall?
18 units
27
How many units/knots will the AOA gauge be at when the stick shaker is activated?
15-16 units or 5 to 10 knots above stall speed
28
When the AOA test switch is in the low position, what will the indexer and gauge show?
- Amber donut | - 10.5 units
29
The center arrow on the accelerometer moves up and down to indicate what?
Current G load
30
What is the CWS interconnected with?
MASTER WARN and MASTER CAUT annunciators
31
What components make up the EFIS system?
- EFIS control panel - EADI - EHSI
32
When the EHSI is in HSI normal mode pressing the map button (MAP) changes the display to which mode?
Navigation map
33
The bearing pointer select buttons are used to cycle the EHSI bearing pointers through what modes?
- VOR - GPS - Declutter
34
True or false: In the composite mode, both attitude and heading information can be displayed on either the EADI or EHSI
True
35
The primary pitot probe at the right wingtip and primary static ports on the sides of the aft fuselage provide necessary pressures to what?
Air Data Computer
36
The EFIS system provides uncluttered unusual attitude information on the EADI when the aircraft exceeds which set of predefined limits?
- Pitch +30° or -20° | - Roll angle greater than 65°
37
The altimeter displays baro-set data into windows in what formats?
- Inches of mercury | - Millibars
38
True or false: The conventional magnetic compass can be used in case of total electrical failure, or as an instrument cross-check
True
39
If pitch or roll attitude failure occurs, what words appear in red letters at the top center of the EADI screen?
ATTITUDE FAIL
40
In the NAV MAP mode on the EHSI, which full circle range scales are available?
5, 10, 20, 40, 80, 160, 240, 320, and 1000 NM
41
The standby attitude indicator will supply accurate information for at least how many minutes after electrical failure?
9 minutes
42
True or False: If either pilot selects EFIS composite mode, the displays in the other cockpit are not affected
False
43
Which button on the digital clock is used to move the function indicator to the desired setting?
SEL
44
True or False: The CTL button is used to set minutes in clock LT mode
False
45
After reaching 59 minutes and 59 seconds, the count up timer will display hours and minutes to what limit?
99 minutes and 59 seconds
46
The MASTER WARN and MASTER CAUT switchlights are interconnected with what?
Main annunciator panel
47
Anytime a warning or caution annunciator on the main annunciator panel in either cockpit lights, the respective MASTER WARN or MASTER CAUT switchlights do what?
Flash in both cockpits
48
A flashing MASTER WARN light on the switchlight panel should be accompanied by what?
A decaying tone
49
True or False: All IDARS functions are controlled by the pilot in the front cockpit using the FDR control panel
False
50
Where is the flight data recorder portion of the IDARS installed at?
Left avionics bay
51
When IDARS reaches approximately 80% full, which annunciator will illuminate?
Green MAINT
52
The accelerometer displays instantaneous normal acceleration in what range of G's?
-6 to +10
53
To perform a count up with the digital clock, the function indicator must be over what label?
ET
54
Angle of attack information is provided on the AOA indexer when what condition is met?
The landing gear is down and locked
55
When a flashing master switchlight is reset, the associated annunciator on the main annunciator panel will do what as long as the malfunction or failure condition persists?
Remain illuminated
56
True or False: The FT function of the digital clock does not function in this aircraft
True
57
Pilot warning tones are generated in a tone generator in the AOA computer and routed to what?
Helmet audio connections
58
The data transfer module is used for digital information storage, loading, and retrieval. What is it?
A portable memory cartridge
59
What is a slow approach speed indicated by?
Upper green chevron on the AOA indexer
60
How are heading and course set on the EHSI?
Using the HDG and CRS knobs on the EFIS control panel
61
What are the three EFIS modes?
- Enroute - Approach - Composite
62
EFIS approach mode adds what elements to the standard instrument displays?
- Glideslope - Localizer - Marker beacon
63
What are the pitch and roll parameters that cause the EFIS to declutter the EADI during unusual attitudes?
- Pitch angle exceeds +30° or -20° | - Roll angle exceeds 65°
64
The EADI display returns to normal when the aircraft attitude returns to which parameters?
- Less than 25° nose-up or 15° nose-down pitch | - Bank angle less than 60°
65
What is the purpose of the vertical speed indicator?
Displays vertical speed and direction of the aircraft
66
What information does the airspeed indicator display?
- Indicated airspeed - Mach number - Maximum operating airspeed (Vmo)
67
As altitude increases, Vmo and the barber pole will do what?
Decrease, move downward
68
How can you tell if the ADC has failed or its data is invalid?
The electronic instruments will indicate a failure
69
What are the standby instruments?
- Standby airspeed indicator - Standby attitude indicator - Standby Altimeter - Standby Turn and bank indicator - Magnetic compass
70
How are the standby instruments powered?
- Battery bus | - Auxiliary battery
71
How is the standby airspeed indicator operated?
By pitot and static pressure from the secondary pitot/static system
72
When should you cage the standby attitude indicator?
- Before applying or removing electrical power | - Before engine start and shutdown
73
After loss of all electrical power, how long will the stanbdy attitude indicator provide pitch and roll information and to what accuracy?
- Nine minutes | - Within 6°
74
The stick shaker is activated approximately how many knots above stall speed?
5-10 knots
75
What does the green arc on the AOA gauge indicate?
Normal approach speed (optimum angle of attack or "on-speed")
76
When will either the MASTER WARN or MASTER CAUTION switchlights illuminate?
- Anytime a warning or caution annunciator illuminates in either cockpit - The MASTER WARN illuminates with the FIRE light
77
When showing, what does the red indication in the standby turn and bank indicator mean?
Turn rate information is not available
78
When should readings be taken from the magnetic compass?
During level, unaccelerated flight
79
What is the purpose of the two resettable needles on the accelerometer?
Record maximum deviation above and below +1G experienced during flight
80
What indications can be illuminated on the flight data recorder annunciator?
- Green MAINT | - Amber FAIL

T-6 Systems (12 decks)

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