ATR 72 - Flight controls

A FLAP UNLK alert is provided to inform the flight crew of flaps spurious retraction. The alert is triggered if spurious retraction of more than _____ occurs.

5 degrees.

6 degrees.

4 degrees.

Correct! Wrong!

Stick Pusher Pushbutton – When selected OFF:

STALL WARNING aural alert (cricket) is still active for 120 seconds.

STALL WARNING aural alert (cricket) is still active.

STALL WARNING aural alert (cricket) is also lost.

Correct! Wrong!

The two control wheels operate mechanically the two ailerons and the two spoilers’ hydraulic valve blocks. Spoiler deflection starts after _____ of aileron deflection.

1.5 degrees

2.5 degrees

3.2 degrees

Correct! Wrong!

Flaps position color is amber when:

Flap asymmetry or flap jam or flap command failure or flap lever microswitch failure is detected.

Flap asymmetry or flap jam is detected.

Flap asymmetry or flap jam or flap command failure is detected.

Correct! Wrong!

Stick Pusher Pushbutton - The 'FAULT' amber light indicates:

A stick pusher or stick shaker failure.

A stick pusher failure.

A stick pusher and stick shaker failure.

Correct! Wrong!

STALL WARNING aural alert (cricket) is also lost.

Spoiler position indicator - When blue light comes on, each one indicates that the associated spoiler is:

Not in the retracted position.

Deployed.

In a retracted but unlocked position.

Correct! Wrong!

Flaps position color is red when:

Both flaps position are invalid.

Flap unlocked is detected.

Flap command failure is detected.

Correct! Wrong!

There are two stick shakers and two stick pushers, two for each control column.

True.

False.

Correct! Wrong!

There are two stick shakers, one for each control column but only one stick pusher actuator located on the captain pitch channel. In case of pitch uncoupling when the pusher triggering angle of attack is reached, only the captain control column is pushed forward.

Full yaw trim travel requires about:

30 seconds.

15 seconds.

40 seconds.

Correct! Wrong!

Full pitch trim travel requires about:

30 seconds in normal and in STBY control.

20 seconds in normal control and 30 seconds in STBY control.

30 seconds in normal control and 40 seconds in STBY control.

Correct! Wrong!

Stick pusher PWR and CTL are supplied by the:

DC BUS 1

DC ESS

EMER DC BUS

Correct! Wrong!

When AP is engaged and generates a 'RETRIM ROLL' message on FMA, a cyan arrow appears above the aileron trim symbol to indicate the trim direction request (opposite trim command is inhibited).

True.

False.

Correct! Wrong!

In case of pitch tabs desynchronization, the AP disconnects, an alert is generated by the FWS and:

Normal and STBY pitch trim control remain operative.

Normal and STBY pitch trim control remain operative but with some travel restriction.

Normal and STBY pitch trim control are inoperative.

Correct! Wrong!

A spring tab provides a flexible compensation which automatically increases with the aerodynamic loads applied on the ailerons, thus ensuring a reduction of the pilot’s efforts.

False.

True.

Correct! Wrong!

Pitch Trim Rocker Switches - On each control wheel, two pitch trim rocker switches are installed. It is necessary to operate both rocker switches to activate the normal electrical motor of each trim actuator and to control nose up or down. If normal trim actuator is actuated during more than _____, an aural whooler is generated by the FWS.

1 second.

7 seconds.

5 seconds.

Correct! Wrong!

Full roll trim travel requires about _____

30 seconds.

10 seconds.

20 seconds.

Correct! Wrong!

The guarded STBY PITCH Control switch controls the electrical motors of each trim actuator. Action on this switch disengages the AP. Simultaneous action on a normal rocker switch and the STBY PITCH switch _____

Will give priority to the STBY PITCH switch.

Will give priority to the normal rocker switch.

Is not recommended.

Correct! Wrong!

Aileron Trim Position Indicator - What is the meaning of this indication?

Autopilot is engaged.

Autopilot is disengaged.

Autopilot is not engaged or not engaged: aileron trim is in neutral position.

Correct! Wrong!

Ailerons, spoilers, elevators, and rudder are mechanically actuated.

False.

True.

Correct! Wrong!

Ailerons, elevators, and rudder are mechanically actuated. Spoilers and flaps are hydraulically actuated by the blue hydraulic system.

Loss of stick pusher does not lead to stick shaker loss.

False.

True.

Correct! Wrong!

Flaps Position Indicator - If both right and left flap position are not available:

A single amber 'F' message is displayed.

An amber 'X Flap' message is displayed.

Flap position is not displayed.

Correct! Wrong!

Lift augmentation is achieved on each wing by two flaps, one inboard and one outboard, linked mechanically with a fail safe design. Possible asymmetry is sensed by two flaps position transmitters and detected by the MFC when an angle of _____ is reached.

4 degrees.

6.7 degrees.

3.4 degrees.

Correct! Wrong!

Yaw trim is supplied by the:

DC EMER BUS

DC BUS 1

DC ESS BUS

Correct! Wrong!

The stick pusher is controlled by the MFC and is a function of signals sent by the angle-of attack probes. The triggering values for the secondary alarms (stick pusher) depend on the aircraft configuration. A white STICK PUSHER indication is triggered on the FMA to indicate that the stick pusher is operating.

False.

True.

Correct! Wrong!

A green STICK PUSHER indication is triggered on the FMA to indicate that the stick pusher is operating.

Wind protection is achieved on ground by:

A locking and damping mechanism on pitch and roll axes.

A locking mechanism on pitch, yaw and roll axes. There is an extra damping unit on yaw axis limiting excessive rudder travel speed.

A locking mechanism on pitch and roll axes. There is also damping unit on yaw axis limiting excessive rudder travel speed.

Correct! Wrong!

Flaps control and asymmetry detection is supplied by:

DC BUS 1

DC STBY BUS

DC EMER BUS

Correct! Wrong!

Flaps Position Indicator - The flaps position indication on flight control part of EWD page is the mean value of left and right sides flaps position.

False.

True.

Correct! Wrong!

In case of loss of right or left flaps position, the valid flap position is used for flap position display.

Roll trim is supplied by the:

DC EMER BUS.

DC BUS 1 or DC BUS 2 as back-up.

DC BUS 1.

Correct! Wrong!

The Travel Limitation Unit (TLU) is fitted on the aircraft to limit pedals travel in order to prevent any damaging rudder travel when flying at high speed.

False.

True.

Correct! Wrong!

ATR 72 – Flight controls

Quiz

ATR 72 - Flight controls

A FLAP UNLK alert is provided to inform the flight crew of flaps spurious retraction. The alert is triggered if spurious retraction of more than _____ occurs.

Stick Pusher Pushbutton – When selected OFF:

The two control wheels operate mechanically the two ailerons and the two spoilers’ hydraulic valve blocks. Spoiler deflection starts after _____ of aileron deflection.

Flaps position color is amber when:

Stick Pusher Pushbutton - The 'FAULT' amber light indicates:

Spoiler position indicator - When blue light comes on, each one indicates that the associated spoiler is:

Flaps position color is red when:

There are two stick shakers and two stick pushers, two for each control column.

Full yaw trim travel requires about:

Full pitch trim travel requires about:

Stick pusher PWR and CTL are supplied by the:

When AP is engaged and generates a 'RETRIM ROLL' message on FMA, a cyan arrow appears above the aileron trim symbol to indicate the trim direction request (opposite trim command is inhibited).

In case of pitch tabs desynchronization, the AP disconnects, an alert is generated by the FWS and:

A spring tab provides a flexible compensation which automatically increases with the aerodynamic loads applied on the ailerons, thus ensuring a reduction of the pilot’s efforts.

Full roll trim travel requires about _____

The guarded STBY PITCH Control switch controls the electrical motors of each trim actuator. Action on this switch disengages the AP. Simultaneous action on a normal rocker switch and the STBY PITCH switch _____

Aileron Trim Position Indicator - What is the meaning of this indication?

Ailerons, spoilers, elevators, and rudder are mechanically actuated.

Loss of stick pusher does not lead to stick shaker loss.

Flaps Position Indicator - If both right and left flap position are not available:

Lift augmentation is achieved on each wing by two flaps, one inboard and one outboard, linked mechanically with a fail safe design. Possible asymmetry is sensed by two flaps position transmitters and detected by the MFC when an angle of _____ is reached.

Yaw trim is supplied by the:

Wind protection is achieved on ground by:

Flaps control and asymmetry detection is supplied by:

Flaps Position Indicator - The flaps position indication on flight control part of EWD page is the mean value of left and right sides flaps position.

Roll trim is supplied by the:

The Travel Limitation Unit (TLU) is fitted on the aircraft to limit pedals travel in order to prevent any damaging rudder travel when flying at high speed.