Boeing B737 MAX - Anti Ice and Rain

The cowl anti-ice valve is ___ controlled and _ operated.

Pneumatically _ Mechanically.

Electrically _ Electrically.

Electrically _ Mechanically.

Electrically - Pneumatically.

Correct! Wrong!

Windshield wipers of are provided to maintain a clear area on the cockpit No.1 windows. Which of the following statements is correct?

Each wiper is operated by a separate system

INT is a three second intermittent operation.

Windshield wipers are hydraulically operated & electrically controlled

Windshield wipers may be operated on a dry windshield

Correct! Wrong!

The WING ANTI-ICE switch automatically trips OFF:

At liftoff when the air-ground sensor goes to the air mode.

When both thrust levers are set for takeoff.

When both thrust levers are set for takeoff and airspeed is above 60 knots.

When both thrust levers are set for takeoff and airspeed is above 80 knots.

Correct! Wrong!

What happens when the WING ANTI-ICE switch is placed ON while in flight?

Both Control valves open.

Stick shaker logic is biased for icing conditions.

FMC displayed Vref is not adjusted

All statements are correct.

Correct! Wrong!

The pitot probe for standby airspeed continues to be heated when the airplane is on standby power.

True.

False.

Correct! Wrong!

The pitot probe for standby airspeed is not heated when the airplane is on standby power.

The aircraft is on the ground. You place the WING ANTI-ICE switch to ON. Which conditions will allow the wing anti-ice valve to open?

Thrust on both engines is below the setting for takeoff thrust and the temperature inside both wing distribution ducts is below the thermal switch activation temperature.

Thrust on both engines is above the setting for takeoff thrust and the temperature inside both wing distribution ducts is below the thermal switch activation temperature.

Thrust on both engines is below the setting for takeoff thrust or the temperature inside both wing distribution ducts is above the thermal switch activation temperature.

Thrust on both engines is above the setting for takeoff thrust or the temperature inside both wing distribution ducts is above the thermal switch activation temperature.

Correct! Wrong!

You select the engine anti-ice valve to the ON position. The COWL VALVE OPEN light is illuminated blue and the TAI indication illuminates on the CDS. What happened?

The cowl anti-ice valve fails to move to the position commanded by the ENG ANTI-ICE switch.

There is excessive heat applied to the cowl lip.

This is a normal indication.

There is excessive pressure in the duct leading from the cowl anti-ice valve to the cowl lip.

Correct! Wrong!

When operating on standby power, only the captain's pitot probe is heated, however, the CAPT PITOT light does not illuminate for a failure.

False.

True.

Correct! Wrong!

Which pitot probes and static ports are not heated?

No.1 Aux pitot probe and static port.

Elevator pitot probes.

No.2 Aux pitot probe and static port.

Alternate static ports.

Correct! Wrong!

Power to window numbers 1 and 2 must be initially selected OFF by the flight crew if an overheat condition is detected.

True.

False.

Correct! Wrong!

Power to window numbers 1 and 2 is automatically removed if an overheat condition is detected.

Positioning the WING ANTI-ICE switch to ON in flight:

Adjusts FMC displayed VREF automatically when WING ANTI-ICE switch is ON.

Sets stick shaker logic for icing conditions only when WING ANTI-ICE switch is ON.

Have no influence on stick shaker logic.

Sets stick shaker logic for icing conditions for the remainder of the flight.

Correct! Wrong!

The wing anti-ice system provides bleed air to all leading edge slats:

True.

False.

Correct! Wrong!

The wing anti-ice system provides protection for the three inboard leading edge slats by using bleed air. The wing anti-ice does not include the leading edge flaps or the outboard leading edge flaps.

The engine Cowl Anti-Ice valve is located UPSTREAM of the Engine Bleed Air Valve.

False.

True.

Correct! Wrong!

Passing 3000 feet climbing, you have selected Engine Anti-Ice ON. Passing FL90, you select them OFF.

Stall warning logic and minimum maneuver speeds on the airspeed indicator return to normal.

Stall warning logic, airspeed indications and minimum maneuver speeds on the airspeed indicator return to normal, if wing anti-ice has not been used in flight.

Stall warning logic and minimum maneuver speeds on the airspeed indicator return to normal, if wing anti-ice has not been used for takeoff.

Stall warning logic, airspeed indications and minimum maneuver speeds on the airspeed indicator return to normal.

Correct! Wrong!

Which window(s) are heated with the LEFT FWD WINDOW HEAT Switch ON?

L2, L4, L5.

L1, L2, L3.

L2, L3, L4, L5.

L1 only.

Correct! Wrong!

If you select the WING ANTI-ICE switch on the ground:

Wing anti-ice control valves open if thrust on both engines is below takeoff warning setting.

Wing anti-ice control valves open if thrust on both engines is below takeoff warning setting and temperature inside both distribution ducts is below thermal switch activation temperature.

Wing anti-ice control valves open if thrust on either engine is below takeoff warning setting and temperature inside both distribution ducts is below thermal switch activation temperature

Correct! Wrong!

Both windshield wipers are controlled with a common switch.

False.

True.

Correct! Wrong!

When operating on standby power, only the captain's pitot probe is heated, however, the CAPT PITOT light does not illuminate for a failure.

False.

True.

Correct! Wrong!

Positioning ENG ANTI-ICE switch to on has what effect?

Adjusted stall warning logic for stick shaker, minimum maneuver speed bars on airspeed indicator, and automatically adjusted FMC displayed VREF; return to normal when engine anti-ice is positioned to OFF.

FMC displayed VREF is adjusted automatically.

Adjusted stall warning logic for stick shaker, minimum maneuver speed bars on airspeed indicator, and automatically adjusted FMC displayed VREF; remain for rest of flight.

Stall warning logic adjusts stick shaker and minimum maneuver speed bars on airspeed indicator.

Correct! Wrong!

When operating on standby power only the Captain's pitot probe is still heated - if the Captain's pitot probe heating fails in this condition, there is no CAPT PITOT alert given.

False

True.

Correct! Wrong!

On the ground and in flight, the wing anti-ice valves close if the forward thrust levers are advanced above the takeoff warning setting.

True.

False.

Correct! Wrong!

Temperature controllers maintain the correct temperature on windows No. 1 and 2. In the event of an overheat, power is automatically removed.

True.

False.

Correct! Wrong!

If the cowl anti-ice valve fails to move to the position indicated by the ENG ANTI-ICE switch, the COWL VALVE OPEN light remains illuminated bright blue and an amber TAI indication immediately illuminates on the CDS.

False.

True.

Correct! Wrong!

With the WING ANTI-ICE switch ON and the aircraft on the ground, the WING ANTI-ICE switch remains ON regardless of the control valve position.

True.

False.

Correct! Wrong!

Illumination of the amber ENGINE ANTI-ICE caption indicates that:

The engine cowl thermal anti-ice system has been inhibited due to a system failure or when an engine core anti-ice valve fails closed.

An engine core anti-ice valve has failed closed.

The engine cowl thermal anti-ice system has been inhibited due to a system failure.

Correct! Wrong!

What is the maximum airspeed limit when WINDOW HEAT is inoperative?

280 KIAS below 10 000 feet.

250 KIAS.

250 KIAS below 10 000 feet.

280 KIAS.

Correct! Wrong!

Stall warning logic, airspeed indications, and minimum maneuver speeds on the airspeed indicator return to normal when engine anti-ice is positioned OFF if wing anti-ice has not been used in flight.

True.

False.

Correct! Wrong!

Which portion of the wings does the wing anti-ice system heat?

Leading flaps.

Outboard leading edge slats.

Outboard leading edge slats and flaps.

Three inboard leading edge slats.

Correct! Wrong!

What do the green ON lights indicate above the Window heat switches?

Illuminated means heat being applied to windows, extinguished means windows at correct temperature

Illuminated means the window Overheat system has activated.

Illuminated means window heat needs to be switched on for that window, extinguished means heat now being applied to that window.

Extinguished means heat still being applied to window but not yet at correct operating temperature, illuminated means window at correct temperature.

Correct! Wrong!

The amber COWL ANTI-ICE is illuminated.

It indicates an overpressure and excessive temperature condition.

It indicates an excessive temperature in the duct between the cowl anti-ice valve and cowl lip.

It indicates an overpressure condition in duct downstream of engine cowl anti-ice valve.

It indicates either an overpressure or an excessive temperature condition

Correct! Wrong!

The OVHT test will cause all overheat lights to come on and the ON lights will eventually go out. How does a pitot reinstate the Window heat after performing an Overheat test?

Cycle all switches OFF and ON.

Cycle power OFF and ON to Main AC Bus 2.

Cycle all switches OFF for 10 seconds and ON.

Correct! Wrong!

The window heat PWR TEST:

Must be tested before using the window heat system.

Must be tested before each flight.

Provides a confident test.

Also tests the overheat protection system.

Correct! Wrong!

The R ELEV PITOT light is illuminated. What does this indicate?

System B hydraulic pressure is low.

The Right elevator pitot is blocked.

All statements are correct.

The Right elevator pitot is not heated.

Correct! Wrong!

When are the ENGINE ANTI-ICE switches turned ON if icing conditions exist on ground?

During taxi out.

Immediately after engine start.

Before engine start.

When cleared on the runway.

Correct! Wrong!

Illumination of an amber COWL ANTI ICE light indicates:

The respective cowl anti-ice valve is in transit, the cowl anti-ice vave position disagrees with the respective engine anti-ice switch position.

An overpressure condition.

The respective cowl anti-ice valve is open.

An overtemperature or overpressure condition.

Correct! Wrong!

A conductive coating on the outer glass pane of window numbers 1 and 2 permits electrical heating to prevent ice build-up and fogging. Window number 3 is not electrically heated.

True.

False.

Correct! Wrong!

The rain removal system for the forward windows comprises of the following:

Windshield wipers, hydroscopic rain repellent coating.

Windshield wipers.

Heated windows, Windshield wipers.

Windshield wipers, heated windows, hydroscopic rain repellent coating.

Correct! Wrong!

The wing anti-ice control valves are:

DC motor-operated.

AC motor operated

Both DC & AC motor-operated.

Correct! Wrong!

Does the availability of bleed air for engine anti-ice require that the engine bleed air switch be ON?

No.

Yes.

Correct! Wrong!

What maintains the correct temperature on windows No. 4 and 5?

These windows are heated with cabin air.

A thermal switch on window No. 4.

A thermal switch located on window No. 5.

Individual thermal switches.

Correct! Wrong!

Dual angle-airflow sensors (alpha vanes) provide angle-of-attack information to the stall warning system, autothrottle, autopilot and autoslats and are anti iced:

Whenever wing anti-ice is being used.

By actuating the LEFT or RIGHT FWD window heat switch.

Whenever the alternate static ports are heated.

By independent 115V AC heating elements, controlled by the Probe Heat switches.

Correct! Wrong!

Boeing 737 MAX - Anti Ice and Rain

Quiz

Boeing B737 MAX - Anti Ice and Rain

The cowl anti-ice valve is _________ controlled and _______ operated.

Windshield wipers of are provided to maintain a clear area on the cockpit No.1 windows. Which of the following statements is correct?

The WING ANTI-ICE switch automatically trips OFF:

What happens when the WING ANTI-ICE switch is placed ON while in flight?

The pitot probe for standby airspeed continues to be heated when the airplane is on standby power.

The aircraft is on the ground. You place the WING ANTI-ICE switch to ON. Which conditions will allow the wing anti-ice valve to open?

You select the engine anti-ice valve to the ON position. The COWL VALVE OPEN light is illuminated blue and the TAI indication illuminates on the CDS. What happened?

When operating on standby power, only the captain's pitot probe is heated, however, the CAPT PITOT light does not illuminate for a failure.

Which pitot probes and static ports are not heated?

Power to window numbers 1 and 2 must be initially selected OFF by the flight crew if an overheat condition is detected.

Positioning the WING ANTI-ICE switch to ON in flight:

The wing anti-ice system provides bleed air to all leading edge slats:

The engine Cowl Anti-Ice valve is located UPSTREAM of the Engine Bleed Air Valve.

Passing 3000 feet climbing, you have selected Engine Anti-Ice ON. Passing FL90, you select them OFF.

Which window(s) are heated with the LEFT FWD WINDOW HEAT Switch ON?

If you select the WING ANTI-ICE switch on the ground:

Both windshield wipers are controlled with a common switch.

When operating on standby power, only the captain's pitot probe is heated, however, the CAPT PITOT light does not illuminate for a failure.

Positioning ENG ANTI-ICE switch to on has what effect?

When operating on standby power only the Captain's pitot probe is still heated - if the Captain's pitot probe heating fails in this condition, there is no CAPT PITOT alert given.

On the ground and in flight, the wing anti-ice valves close if the forward thrust levers are advanced above the takeoff warning setting.

Temperature controllers maintain the correct temperature on windows No. 1 and 2. In the event of an overheat, power is automatically removed.

If the cowl anti-ice valve fails to move to the position indicated by the ENG ANTI-ICE switch, the COWL VALVE OPEN light remains illuminated bright blue and an amber TAI indication immediately illuminates on the CDS.

With the WING ANTI-ICE switch ON and the aircraft on the ground, the WING ANTI-ICE switch remains ON regardless of the control valve position.

Illumination of the amber ENGINE ANTI-ICE caption indicates that:

What is the maximum airspeed limit when WINDOW HEAT is inoperative?

Stall warning logic, airspeed indications, and minimum maneuver speeds on the airspeed indicator return to normal when engine anti-ice is positioned OFF if wing anti-ice has not been used in flight.

Which portion of the wings does the wing anti-ice system heat?

What do the green ON lights indicate above the Window heat switches?

The amber COWL ANTI-ICE is illuminated.

The OVHT test will cause all overheat lights to come on and the ON lights will eventually go out. How does a pitot reinstate the Window heat after performing an Overheat test?

The window heat PWR TEST:

The R ELEV PITOT light is illuminated. What does this indicate?

When are the ENGINE ANTI-ICE switches turned ON if icing conditions exist on ground?

Illumination of an amber COWL ANTI ICE light indicates:

A conductive coating on the outer glass pane of window numbers 1 and 2 permits electrical heating to prevent ice build-up and fogging. Window number 3 is not electrically heated.

The rain removal system for the forward windows comprises of the following:

The wing anti-ice control valves are:

Does the availability of bleed air for engine anti-ice require that the engine bleed air switch be ON?

What maintains the correct temperature on windows No. 4 and 5?

Dual angle-airflow sensors (alpha vanes) provide angle-of-attack information to the stall warning system, autothrottle, autopilot and autoslats and are anti iced:

The cowl anti-ice valve is ___ controlled and _ operated.