ICE AND RAIN PROTECTIONMultiple-choice exercise

Top of Form1If the No 1 window inner pane cracks and arcing begins

No pressurisation adjustments are necessary.

The maximum cabin differential pressure must be reduced to 5 PSID.

Initiate drill for emergency descent.

2The right No.2 window heating input is controlled by

The right SIDE window heat control system.

The right No.1 window heat control system.

The left No.1 window heat control system.

3With any control cabin window heating inoperative, speed should be restricted to

280 Kts at altitudes below 15,000ft.

250 Kts at altitudes below 10,000ft.

250 Kts at altitudes below 15,000ft.

4If a No.1 window outer pane cracks

Turn window heat off, limit IAS to 250kts below 10,000 ft.

Cabin differential pressure must be reduced to a maximum of 5 PSI

Cabin differential pressure must be reduced to a maximum of 2 PSI

5If a window overheat light illuminates this indicates that

The associated window has reached an overheat condition and it must be selected OFF manually to remove power before any damage takes place.

The power has been automatically removed from the associated window system and will be re-introduced automatically when the window has cooled.

The power has been automatically removed from the associated window system.

6With all window heaters selected ON and OVHT selected on the window heat test switch

The ON lights will not be affected but observe a rise in on the AC ammeters.

All OVERHEAT lights illuminate and the ON lights will extinguish immediately.

All OVERHEAT lights illuminate and the ON lights may extinguish immediately, or remain illuminated for as long as 70 seconds.

7The window heat switches must be

OFF to make a PWR and OVHT test only.

OFF when making an OVHT test only.

ON to make a PWR or OVHT test.

8With all windscreen heating switches ON and the aircraft on the ground

All lights remain extinguished until the aircraft is airborne because of touchdown relays.

If a green ON light extinguishes and an OVERHEAT light comes ON, the Master Caution light will also come ON.

If a green ON light extinguishes and an OVERHEAT light comes ON, the Master Caution light will not come ON.

9After the overheat lights have illuminated during OVHT test

The window heat switches must be momentarily positioned to OFF to reset the system.

No action is required as the resetting of the system is automatic.

The window heat switches must be momentarily positioned to RESET to reset the system.

10During a flight in icing conditions with wing anti-icing selected to ON

The system will automatically select the wing anti-ice valves to closed if the temperature in the leading edge is too high.

The associated wing anti-ice valve will automatically close if the pressure in the wing leading edge is too high.

There is no direct control over the amount of heat supplied other than variation of engine power.

11With the Wing Anti-ice switch selected to ON and either VALVE OPEN light is illuminated bright blue

The valve is partially open and flight may be continued normally in icing conditions.

Avoid icing conditions.

Select both engine start switches to FLT.

12Thermal air for wing anti-icing is obtained from

5th stage engine bleed air only.

Bleed air ducted from the main pneumatic manifold.

9th stage engine bleed air only.

13The right No.2 window heat is supplied from

Generator BUS No. 2.

Standby AC BUS

Generator BUS No. 1.

14If the engine anti-ice switch is selected ON, and a cowl valve failed in the closed position then the COWL VALVE OPEN light

Will be extinguished.

Will be illuminated bright blue.

Will illuminate dim blue after 5 - 7 seconds.

15The total air temperature probe

Is electrically heated.

Does not require heating.

Is not heated while on the ground.

16Rain repellant is actuated

Automatically and momentarily when the windscreen wipers are selected ON.

By pressing one of two rain repellent buttons located on the overhead panel

By pressing the single rain repellent button located on the overhead panel.

17Heat is applied to the alpha vanes

By switching on the pitot static heaters.

By selecting the Stall Vane heater switch on the stall warning test panel to ON.

Automatically when either generator bus is powered.

18The wing anti-ice valves will

Close when the temperature in the anti-ice ducting reaches a preset limit on the ground only.

Close when the temperature in the anti-ice ducting reaches a preset limit on the ground or in flight.

Close when the pressure in the anti-ice ducting reaches a preset limit on the ground only.

19The wing anti-ice control valves

Are AC motor operated.

Are DC motor operated.

Are pneumatically operated.

20The Wing Thermal anti-ice system

Is not effective with the trailing edge flaps beyond the flaps 15 degree position.

Is effective with the slats in any position and does include the leading edge flaps.

Is effective with the slats in any position but does not include the leading edge flaps.

21The thermal protection of the wing anti-ice ducting is

An in flight function only.

An on ground function only.

Operative at all times.

22With the aircraft on the ground and the wing anti-iceswitch selected to ON

The wing anti-ice switch will remain ON irrespective of control valve position.

The wing anti-ice switch will trip to OFF when either or both wing anti-ice valves close.

The wing anti-ice switch will trip to OFF when either wing ducting exceeds the preset temperature limit.

23The source of air for engine anti-ice is

9th stage engine bleed air only.

5th stage engine bleed air only.

5th and 9th stage engine bleed air.

24The COWL ANTI-ICE light is

Blue in colour and when illuminated indicates the engine cowl anti-ice valve is in disagreement with the engine anti-ice switch.

Amber in colour, indicating over-temperature or over-pressure.

Amber in colour, indicating over-temperature only.

25The COWL ANTI-ICE light when illuminated

Indicates an overtemperature or overpressure condition in the duct upstream of the engine cowl anti-ice valve.

Indicates an overtemperature or overpressure condition in the duct downstream of the engine cowl anti-ice valve.

Indicates an excessive pressure in the supply duct only.

26The pitot static and probe heater lights are

Illuminated when heat is being supplied to the respective pitot, static and probe heaters.

Not connected to the Master Caution system.

Amber in colour, and connected to the Master Caution system.

27Both windshield wipers are controlled by

Their own respective lock-toggle switches.

Their own respective rotary switches.

One rotary switch.

28Window NO.3 in the control cabin is

Electrically heated.

Is fully anti-fogged from the air conditioning system.

Not electrically heated.

29The Window Heat ON light (green) illuminates to indicate

The associated window heat switch is positioned to ON.

The window heat controller is applying heat to the associated window.

The associated window heat switch has been selected to OVHT TEST.

30In the event of an Engine anti-ice valve failing in the OPEN position, bleed air to the cowl can

Not be switched off while the associated engine is running.

Can be switched off by closing the Isolation valve.

Can be switched off by selecting the associated engine BLEED switch to OFF.

31If the Master Caution light, the ANTI-ICE annunciator and the amber COWL ANTI-ICE light illuminate, you should

Switch off the associated engine Bleed switch.

Retard the associated thrust lever until the COWL ANTI-ICE light extinguishes.

Immediately switch the associated Engine Anti-ice OFF.