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Ice & Rain Flashcards

1
Q

What are the ATA Code’s

A

30 Ice & Rain
— 00 General
— 10 Airfoils
— 20 Air Intakes
— 30 Pitot & Static
— 38 Water and Waste
— 40 Windows & Windshields
— 50 Antenna & Radomes
— 60 Propellers/Rotors
— 70 Water Lines
— 80 Detections

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2
Q

What must all aircraft that operate in weather conditions where ice is likely to form have?

A

They MUST have ice protection

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3
Q

Ice increases ______ and reduces ______.

A

Drag & Lift

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4
Q

Ice hampers instrument readings and causes ________

A

Vibrations

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5
Q

Anti-Icing Systems prevents the ________ of ice

A

Formation

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6
Q

Anti-Ice systems are operated in flight when icing conditions are present or _________

A

When expected.

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7
Q

Deicing Systems ______ ice on the aircraft

A

Removes

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8
Q

How does the De-icing system work?

A

It allows the ice to accumulate and then break off

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9
Q

Visual inspection is done by flight _____ monitoring

A

Crew
(Visually seeing ice on surface)

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10
Q

Deicer Boots are coated with _______ to dissipate static.

A

Neoprene

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11
Q

Air ________ are on the back side

A

Connections

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12
Q

De-Ice boots are driven by a ______________

A

Vacuum Pump

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13
Q

________________ controls the inflation sequence by directing the vacuum

A

Distributor Valve.

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14
Q

Boots are inflated alternately to minimize _________________

A

Airflow Disruption

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15
Q

A __________________ holds the boots deflated when the system is off, by regulating the vacuum.

A

Suction relief valve.

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16
Q

With wet type vacuum pumps, an _____________ is used to protect the boots from oil deterioration by removing the oil from the air.

A

Oil Separator

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17
Q

(Inspecting & Maintaining Deicer Boots)

What does Deicer boots installation require?

A

Removing all paint from the area to be covered by the Deicer boot. Check for cuts, abrasion, or other damage.

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18
Q

Remove any _______ or _____ with soap and water

A

Grease or Oil

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19
Q

Check _________ __________ for removal procedures

A

Maintenance manual

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20
Q

(Wing Anti-Ice WAI system Thermal Anti-Icing)

Uses heated air flowing _____ ______ ______ passages in the wing, or electric resistance heat elements in a “blanket”.
And what kind of system is it?

A

Through
Anti-ice system

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21
Q

Heat sources for pneumatic systems are combustion heaters, ____ _____ or _______ tubes.

A

Bleed air or augmenter

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22
Q

Wing leading edges, or leading-edge slats, and horizontal and vertical stabilizer leading edges, and some _______ and _____ ______ _____ are heated with a Thermal electric boot system.

A

Turbine and turbo prop inlets

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23
Q

(Electro thermal Propeller)

Many propellers are Deiced by an _________ heated boot on each side.

A

Electrically

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24
Q

The boot, firmly cemented in place, receives current from a ________ and _______ assembly on the spinner bulkhead

A

Slip ring and Brush

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25
(Propellers Fluid Anti-Icing) 10 PSI variable output controlled by a _______
Rheostat
26
Flow rate ranges from less than ______ to more that _______per hour
1 quart 1 Gallon
27
Anti-Icing fluid is ejected from the ______ ____ by centrifugal force.
Slinger Ring.
28
(Probe Anti-Icing) Heaters are controlled by _______
Switches
29
Proper operation of the pitot/static tube heat can be verified by the ___________
Ammeter
30
(Carburetor Icing) Most severe at temperatures between ___________
30-40 degrees F
31
Can occur in warm weather with no ______ ______
Visible Moisture
32
What are the three methods for Windshield Ice Control?
1.Electric heating element in the windshield 2.Circulating heated air 3.Spraying a fluid on the windshield
33
The heat sensors on the windshield have heat sensors that are ______ in the glass.
Imbedded
34
In regards to Windshield inspection, check for ________, check for ________, check for ________ during operation, and arcing caused by a breakdown of the ________ coating.
Delamination, scratching, arcing, Conductive
35
Spraying the Windshield is normally used to clear the windshield prior to ______
Landing
36
Windshield wiper systems are operated electrically, hydraulically, or ______
Pneumatically
37
Pneumatic Rain Removal Systems uses _________ bleed air
Compressor
38
High velocity air ______ rain from hitting windshield
Prevents
39
Deicing aircraft removes frost with ______ ______ and ______ ______
Ethylene glycol Isopropyl alcohol
40
How do you remove ice from turbine engines?
With hot air
41
An operational check of the system can be made by operating the aircraft systems per ______ _______
Operational instruction
42
Some troubles must be corrected by ______ or ______ of system components or by ______ loose connections
Repair Replacement Tightening
43
(De-icing Fluid) Fluid is _______
Flammable
44
How do you clean & dry heated windshields?
With mild soap and plenary of fresh clean water. Dry with Chamois absorbent cotton.
45
(Water & Waste System) In a properly designed system, lavatory sink drain water quantity is ______ and proper drain maintenance should preclude hazardous quantities of ice being formed.
Negligible
46
Potable water which is allowed to drain out overboard can, however, become an appreciable problem unless te drain system is designed to ______ ______ on the airplane
Prevent Impingement
47
In regards to Lavatory waste, tanks are drained through a _____ that can only be opened by the ground personnel
Valve
48
In regards to Ice prevention, water pipes, where icing conditions are likely to occur, are ______ and ______ with electrical tape heaters.
Insulated and Heated
49
What are the 2 types of ice formation and what do they look like?
Glaze/Clear and Rime Glaze is smooth & clear Rime is milky & rough
50
How do Deicer boots operate?
They inflate pneumatically in a sequence to break ice loose
51
What is the purpose of the distributor valve
It Inflates the de-icer boots in a sequence
52
Why are boots inflated alternately
Reduces airflow disruption
53
What is used to prevent static build up?
Neoprene conductive coating outside deicer boots
54
Why is an oil separator needed in a deicer boot system?
Keeps oil out of airflow to prevent oil deterioration of the boot
55
During an ops check should the vacuum gage be steady or fluctuating?
Steady
56
How is the pitot/static tube heat ops checked
Visual inspection, Ammeter check
57
Can carb ice occur in warm weather with no visible moisture?
Yes
58
What controls the amount of current to the heating elements in a windshield
Thermistors
59
Where are the heat sensors in electrically heated windshields
Imbedded in the glass/sandwiched inside window panels
60
What causes arching in electronically heated windshields
Breakdown of the conductive coating layer
61
What are the three rain removal systems
Wipers, chemical, air
62
What provides the high velocity to keep the rain from contacting the windshield?
Engine Bleed Air
63
How is snow removed?
Brush or squeegee
64
How is ice removed from turbine engines?
Hot air flowed through
65
What type of pump is used for inflating deice boots on a recip engine aircraft?
Vane type Pump
66
What is the source of pressure for inflating deicer boots on a reciprocating engine aircraft?
Vane-Type pump
67
Why is a separator needed for a Deicer boot system when using a wet type vacuum pump?
To keep oil out of the air flow

Ice & Rain (1 decks)

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