Ice & Rain Protection Flashcards Preview

737 > Ice & Rain Protection > Flashcards

Flashcards in Ice & Rain Protection Deck (34):
1

Window heat for the Capt & F/O front windows is controlled by

FWD WINDOW HEAT switches thru a Temp Controller

2

What does an illuminated window OVERHEAT light indicate

The respective window has overheated ; power removed from window

3

What does the OVHT position of the WINDOW HEAT test switch provide

Simulation of window overheat condition that illuminates all OVERHEAT light if all WINDOW HEAT switches are ON

4

What does an illuminated amber light on the PITOT STATIC heater panel indicate

Corresponding component not heated

5

How is an engine anti-ice valve controlled and operated

DC controlled & pneumatically operated

6

What is the source of bleed air for engine anti-ice

5th or 9th stage bleed air, prior to the engine bleed valve

7

What does an illuminated amber COWL ANTI-ICE light indicate(500)

Excessive pressure or temperature in duct between cowl anti-ice valve and cowl leading edge lip

8

Which statements correctly describe an illuminated COWL ANTI-ICE light(500)

The light indicates excessive pressure or temperature in the system, but the cowl valve does not close automatically

9

Which ENGINE START switch position should be selected for operating in light icing conditions

CONT

10

What is the source of bleed air for wing anti-ice

Pneumatic manifold air after the engine bleed valve

11

What occurs when the WING ANTI-ICE switch is placed to ON

AC power operates motors which open each wing anti -ice valve

12

What is the normal source of power for the wing anti-ice valves

Normal AC

13

What does a dim WING ANTI-ICE VALVE OPEN light indicate

Respective wing anti-ice control valve is open, with the switch ON

14

What happens when either thrust lever is moved beyond the takeoff warning threshold with wing anti-ice operating on the ground

Both wing anti-ice valves close, but the switch remains ON

15

On the ground prior to liftoff, with the wing anti-ice switch ON, and the thrust levers advanced to takeoff power, the WING ANTI ICE VALVE OPEN lights

Illuminate bright blue

16

An amber COWL ANTI-ICE light indicates

A cowl anti-ice supply duct over-temp or over-pressure condition has occurred

17

The WING ANTI-ICE switch trips to OFF

At liftoff

18

Window heat must be selected ON at least __minutes prior to takeoff

10

19

What is the indication when an engine anti-ice switch is turned ON but the valve fails to open

The respective blue COWL VALVE OPEN light illuminates bright blue

20

The green WINDOW HEAT ON lights illuminate

During a power test, or when a window heat controller is supplying power to the windows

21

On the ground with the throttles advanced to takeoff power and wing anti-ice selected ON, the wing anti-ice valves close

True

22

With the window heat switch ON, an illuminated amber window OVERHEAT light indicates an overheated window condition or a power loss to the window

True

23

The engine anti-ice system

Heats the engine inlet cowl

24

Conditions:A cold front has moved through the area, the temperature is 4C, and the skies are clear. Additionally, the ramp area and taxiways have standing water. Engine and wing anti-ice should be turned on after engine start

True

25

The aircraft is descending through clouds from FL290 to FL180. The SAT is -42 C. Engine anti-ice is required

True

26

The ATIS temperature is 9 C and a light rain is falling. After engine start, the wing and engine anti-ice should be turned on

True

27

Should the Window Heat POWER TEST be performed when all green ON lights are illuminated

No

28

The horizontal stabilizer is anti-iced by

Nothing

29

Will the engine anti-ice operate with that engine's bleed valve closed

Yes

30

What part of the wing is heated by the wing anti-ice system(500)

Slats only

31

Which cockpit windows are not electrically heated by the window heat system

L3 & R3

32

How many slats on each wing of a 737-800 are anti-iced

3 inboard leading edge slats

33

When the engine anti-ice switches on a. B737-700 are turned on, what happens

COWL VALVE OPEN lights turn bright blue, the dim when they are open
Stick shaker logic is set for icing conditions

34

Which model 737 is not allowed to hold in icing conditions with flaps extended

7,8,9