United 737 Anti-Ice/Rain Flashcards

1
Q

What position must Engine Ignition be selected to prior to and during engine anti-ice operation?

A

CONT

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2
Q

Window heat must be ON how many minutes before takeoff?

A

10 Minutes

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3
Q

When must probe heat be on?

A

Before Takeoff

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4
Q

____ flight deck windows are not electrically heated

A

L3 and R3

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5
Q

Temperature controllers maintain window heat at the correct temperature on which windows to ensure maximum strength of windows in the event of bird impact

A

L1, R1, L2, and R2

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6
Q

On the Window Heat Panel, when an overheat condition is detected power is removed from the window, the green ON light extinguishes and ___

A

an amber OVERHEAT light is illuminated

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7
Q

By placing the WINDOW HEAT test switch to OVHT ___

A

an overheat condition is simulated

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8
Q

What happens when placing the WINDOW HEAT test switch to PWR TEST

A

It Provides a confidence test

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9
Q

Engine bleed air thermal anti- icing prevents the formation of ice on which part of the engine?

A

Engine cowl lip

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10
Q

Each cowl anti-ice valve is ____ actuated and ___ controlled.

A

Pressure; electrically

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11
Q

_____ occurs when the ENG ANTI ICE switches are positioned to ON

A

Stick Shaker and minimum maneuver speed bars on airspeed indications are adjusted. The airspeed indications return to normal when engine anti-ice is positioned OFF if the wing anti ice has not been used in flight.

Engine Bleed Air is allowed to flow through the cowl anti ice valve for cowl lip anti icing and the stick shaker logic is set for icing conditions

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12
Q

If the cowl anti ice valve fails to move to the position indicated by the ENG ANTI ICE switch an amber TAI indication illuminates on the CDS after a short delay and the COWL VALVE OPEN light ____

A

remains illuminated bright blue

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13
Q

An amber illuminated COWL ANTI ICE light on the Engine Anti Ice Panel indicates

A

Excessive pressure in the duct leading from the cowl anti ice valve to the cowl lip

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14
Q

What does an amber TAI on the upper display unit above the N1 gauge indicate?

A

Cowl anti ice valve is not in position indicated by related engine anti ice switch

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15
Q

The wing anti ice system excludes the ___ and the ____

A

leading edge flaps; outboard leading edge slats

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16
Q

On the ground, both of the wing anti ice valves close if ______ or either engine thrust is above the takeoff warning setting.

A

either temperature sensor senses a duct over temperature

17
Q

What does a bright blue Wing Anti Ice VALVE OPEN light on the wing anti ice panel indicate

A

The related wing anti ice control valve is in transit or related wing anti ice control valve position disagrees with WING ANTI ICE switch position.

18
Q

An Amber CAPT PITOT light on the Probe Heat Panel indicates

A

The probe is not heated

19
Q

A green TAI on the upper display unit above the N1 gage indicates,

A

cowl anti-ice valve open

20
Q

What supplies conditioned air to No. 1 windows for defogging?

A

WINDSHIELD AIR control knob located on the forward panel