Supplemental Study Guide Review Questions Flashcards
What does the AMS provide?
ECS (heating & cooling) Engine start Pressurization Engine and Wing Anti-Ice Water pressure Hot air leak detection
The pressurization system consists of:
Cabin outflow valve Static pressure port Negative pressure relief valve Positive pressure relief valve Cabin pressure controller
What provides air for the AMS?
Engine bleeds
APU bleed
External pneumatic source
What is external pneumatic air used for?
ECS on the ground
Engine start on the ground
Where is the external ground source panel located?
Lower fairing between the wings
What is the primary use for APU bleed air?
ECS on the ground
Engine starting on the ground
Asssit with engine start airborne (
How many bleed regulation valves are in each engine?
2 (1 high stage bleed valve and 1 engine bleed valve)
Where is bleed air tapped from the engine?
6th and 10th stage compressors (EBV and HSV respectively)
System alternates between valves to regulate an adequate and safe pressure
How would an APU or Engine bleed button show a detected leak?
An amber light illuminates on the button
What does the Overheat Detection System (ODS) observe?
Engine bleeds, packs (air conditioning ducts)
APU bleed
Plumbing for the wing and engine anti-icing system
Trim air (rear cabin temperature control on certain Delta aircraft)
How many ECS packs are on the aircraft? What provides air for the pack?
2 independent packs (left and right)
Each engine provides bleed air to its respective pack
Can a single pack provide adequate temperature control and pressurization?
Yes, up to FL310
What is the maximum altitude for single pack operation?
31,000 ft
Where do the packs distribute air to?
Pack 1 - Flight deck/Cabin
Pack 2 - Cabin
Can a single bleed source power both packs?
Yes, through the crossfeed valve
How many recirculation fans recirulate air back into the cabin and flight deck?
2
Which cargo bay(s) have ventilation fans?
Forward
What cargo compartment(s) may we transport live animals? Why?
Forward
It has air circulation
Pushing out the RECIRC button turns off?
Both recirculation fans
What keeps the 3 avionic E-BAYS cool?
FWD & MID E-BAY (3 fans each pull air from cabin to bay)
AFT E-BAY (Natural airflow from cabin to bay)
The AFT E-BAY has no fans but is it cooled?
Yes, from air flowing from PAX cabin and is expelled toward the recirculation bay
Where does the CPC get Landing Field Elevation (LFE)?
FMS or manual control on pressurization panel
Can the APU bleed be used for the anti-ice system?
No
What happens when the XBLEED button on the panel is pushed out?
It manually closes the crossbleed valve
The DUMP switch is used for?
Emergency evacuation
Fast cabin depressurization
Smoke evacuation
What happens when the DUMP button is pressed?
Sets the ECS packs and recirculation fans to OFF
Controls the outflow valve to maintain the cabin altitude rate of climb at 2000ft/min up to 12,400 ft
When the cabin altitude reaches 12,400 ft it commands the outflow valve full closed
Will the DUMP button work when the pressurization switch is in the manual mode?
NO, it only works in AUTO mode
Does the DUMP button work in Manual mode?
NO, only in AUTO mode but packs and recirc fans will shut down
Why does the DUMP button have a red-raised border around it?
So you can find it in low visibility conditions in the flight deck
The Outflow valve can be modulates ____ or ____?
automatically or manually
The MAN mode position allows manual control of:
Outflow valve
In the Manual mode, will the cabin depressurize on landing?
No
What are the DOWN/UP positions used for on the CABIN ALT selector knob?
Manually closes/opens the outflow valve to decrease/increase cabin altitude
What is the LFE CTRL selector position on the pressurization MODE selector knob used for?
Allows manual input of the landing field elevation
Is the pressurization system still in the AUTO mode when LFE is entered manually?
Yes
What color is the LFE on the EICAS?
Green - FMS input
Cyan - Manual input (an M will be in front of LFE)
Where does the CPCS get cruise flight level and landing elevation?
FMS before takeoff or CPCS calculates using ambient pressure
LFE may be manually inputted
How does the FA know if the temperature setting knob allows control over temperature?
An ENABLED LED turns on when Pilot selects ATTND position
What does a white striped bar mean?
Indicates a non normal position
What emergency equipment is located on the flight deck (8)
Crash Axe Escape Rope (2) Fliashlight (2) Oxygen Masks (3) Life Vests (3) Halon Fire Extinguisher PBE Heat Resistant Gloves
What lights does the annunciator test button not check?
Fire lights, GPU button, and parking brake ON light
How long will the emergency lights last once illuminated?
Approximately 10 minutes
How are the emergency lights powered?
Four dedicated Emergency Lights Power Units (ELPU) with internal batteries
When will the emergency lights automatically illuminate?
Provided the switch is ARMED, when the airplane loses electrical power
What are 3 ways the emergency lights can be turned on or automatically illuminate?
Electrical emergency, FA panel, or flight deck EMER LT switch
When will the reinforced flight dfeck door latch automaticall open?
30 sec after the EMERG ENTRY pushbutton is pressed if the INHIB pushbutton is not pressed
What happens if the flight crew pushes the INHIB button
Inhibits the EMERG ENTRY command from the flight deck door control panel in the passenger cabin for 500 seconds (8 min 20 sec)
Press and holding the cabin EMER ENTRY button for a short time iniates what?
EMER entry into the flight deck sequence starts
What is the purpose of the internal door handle vent flap?
Relieves residual cabin pressure prior to opening the door
What happens if a Pilot selects EMER on the audio panel?
A triple HI/LO chime sounds
What indication(s) are present to confirm whether or not the escape slides are armed or disarmed?
Armed - Red ARMED appears above the respective door handle
Disarmed - Green DISARMED appears
What pressurizes the potable water storage tank?
Engine or APU bleed air
How many displays and instruments are on during initial aircraft power-up?
DUs 2,3 IESS Clock MCDU 2 CCD 1 Audio Control Panels Compass backlight Guidance panel
What is the width of the E170/175
85’4”
175 enhanced wingtip - 93’11”
If not turned on in the MCDU when does the DVDR Flight data recording automatically operate?
First engine start
How many DVDRs are installed?
2
1 FWD and 1 AFT
Can the CVR be erased?
Yes, when the aircraft is on the ground and the parking brake is set
How many PBEs do we have?
4
What is the APU used for?
Electrical and Bleed Air
What monitors and controls the APU?
Its own dedicated FADEC
How are the batteries used for APU start?
BATT 2 powers APU START bus
BATT 1 powers the FADEC and EICAS for monitoring
What is the fuel source for the APU?
Right fuel tank
Left fuel tank through crossfeed valve
What fuel pump is used for APU start? (3)
Batteries ‘ON’ only - DC fuel pump
AC powered aircraft - AC fuel pump 2
Right engine running - Ejector fuel pump
When does the APU electrical and pneumatic loading become available?
3 sec after the APU speed reaches 95%
Will the APU shutdown automatically if the APU fails to start within the normal start cycle time period?
Yes
What does moving the APU selector know to OFF do?
Initiates normal APU shutdown
1 minute cool down followed by a spooldown period
Pneumatics removed immediately
Electrical power removed after 1 minute cool down
Can the APU electrical power be used during the cooldown period?
Yes
If you need the APU 50 seconds into shutdown is there a way to get its use back?
Yes, just turn the APU master switch back to ON
Can the APU shutdown be cancelled?
Yes, move APU MASTER switch to ON before 1 minute cool down is complete
How can the APU be shutdown immediately?
APU EMER STOP button
No 1 min cool down period
When will automatic shutdown of the APU occur?
Ground - All conditions
Flight - Overspeed, Underspeed, FADEC critical fault
When do we get the red bar on the APU EMER STOP button?
An APU fire is detected
What happens when the APU EMER STOP button is pushed?
The APU fuel shutoff valve closes and the APU will shut down with no cooling period. A white stripe illuminates on the button
Does the cool down period apply to the EMER STOP button to the APU?
NO
What is the maximum altitude for operation of the APU bleed?
15,000 feet
What is the maximum altitude for APU operation?
33,000 feet
What is the maximum altitude for APU start?
30,000 feet
Up to what altitude may the APU assist in engine start?
21,000 feet
In normal operations on the ground, which tank does the APU burn from?
Right tank
How many networks make up the electrical system on the aircraft? Why?
2 independent networks
Segregation and fault isolation
What components power the AC system?
2 Integrated Drive Generators (IDG) Auxiliary Power Unit (APU) Inverter Ram Air Turbine (RAT) AC GPU receptacle
What components power the DC system?
2 NiCad batteries
3 Transformer Rectifier Units (TRU)
DC GPU receptacle
What is the AC electrical systems priority?
RAGO On-Side (Respective IDG) Inside (APU generator) Outside (GPU if on the ground) Cross-Side (Opposite IDG)
Which AC source has priority, the APU or GPU
APU has priority and will automatically switch when the APU is up and running
How can you tell that the APU generator has automatically taken over the electrical load?
AVAIL light on the GPU button, and the MFD electrical page shows green on APU icon
During “normal operation”, will a failed IDG de-power the respective AC BUS?
No
One IDG can power the entire electrical system
What are the two lights next to the IDGs?
Indicates which IDG must be disconnected
Also associated with an EICAS message
When would the amber IDG oil indicator light illuminate?
High Oil Temperature, Low Oil Pressure (HOTLOP)
Annunciation test button
What is the purpose of a TRU?
Convert AC to DC
What is the purpose of an Inverter?
Convert DC to AC
Can the APU fully replace a failed IDG?
Yes
What does it mean when the GPU switch says AVAIL?
Coltage/Amperage/Frequency are within limits
If the airplane is using the C GPU and the APU is started, what should the pilot be sure to do?
Deselect the AC GPU button so the power can be connected the next time it is used
What happens with BATT 1 selector ON or OFF?
ON: battery connected to the DC ESS BUS 1
OFF: battery powers HOT BATT BUS 1
What will charge BATT 1 and BATT2?
Any AC power source
In which BATT switch position are the HOT BATTERY BUSSES powered?
HOT BATTERY BUSSES are always powered regardless of the switch position
What is on HOT BATT BUS 1
Engine Fire Extinguisher 1A & 2A Fuel Shutoff Valve 1 Hydraulic Shutoff Valve 1 Engine 1 OIl Level Indication Courtesy/Service LIghts FWD DC Ceiling Lights
What is on HOT BATT BUS 2
Engine Fire Extinguisher 1B & 2B Fuel Shutoff Valve 2 Hydraulic Shutoff Valve 2 Engine 2 Oil Level Indication Refueling Panel Water & Waste System CMC
Below what voltage would you have to call maintenance?
21 volts
Below what voltage must the batteries be charged?
22.0 volts.
Ref SOP
How many batteries are required for APU start? How are they used?
2
BATT 2 powers the APU Start Bus
BATT 1 powers the APU FADEC & EICAS for monitoring
Is BATT 1 necessary to start the APU?
Yes
BATT 1 powers the APU FADEC
Why does battery 1 have ON but no AUTO setting?
Battery 1 does not require automation during APU start
Why does battery 2 have an AUTO setting?
To allow it to power the APU START BUS
What is the minimum battery temperature for APU start?
-20*C on BATT 2
For APU start how would you bypass a cold battery ad what temperature is too cold?
DC GPU and <20*C
What is the purpose of the DC GPU receptacle?
For APU start is battery 2 temperature is
Can the DC GPU charge the batteries?
No
When will the RAT deploy?
Automatically deploys if AC BUSES are not powered
Manually by Pilot (RAT manual deploy handle)
Is there an altitude restriction for operation of the RAT?
No
Will the RAT supply power immediately after automatic deployment?
No, there is an 8 sec delay during which time the batteries supply power
If you start an engine at the gate with the GPU, is the electrical system split? Why?
Yes
IDG will power one side and GPU will power the other
What is available during an electrical emergency (batteries on during power-up)?
DU 2 and 3 Guidance Panel CCD1 MCDU 2 Clock IESS Audio Control Panels Compass backlight
Whenever the electrical load increases beyond the system limit what happens?
Load sheds galley and the right windshield heating
What happens when the ignition switch is selected to OVRD?
Activates both igniters on the ground or in flight
Can the igniters be turned off during flight?
The switch may be moved to the OFF position but the FADEC disregards the command
What controls the engine?
FADEC
What controls engine starting and provides hung start, hot start, and no light off protection?
The FADEC
Does the FADEC provide engine start protection?
Only on the ground for a hot start, hung start, or no light-off
Is there protection for hot starts or hung starts during an in flight start?
No
How are engine thrust ratings controlled?
FADEC
What does the cyan line on the N1 gauge represent during approach? When does it appear?
Minimum N1 for bleed requirements in incing conditions
Configured for landing when anti-ice is ON
How is the N1 limit indicated on the EICAS?
Red tickmark on the N1 gauge
What sources are available for engine starting?
APU
Ground Source (huffer cart or air bottle)
Opposite engine (crossbleed start)
Windmill start
Where is external air for an air start connected? Will the crew have an indication when external air is connected?
Lower section of the wing fairing area
Duct pressure is shown on the MFD STATUS page
What happens after 3 overspeed detection events within 30 sec?
FADEC will not relight the engine
What does WML mean on the engine indication?
Windmilling engine
FADEC has detected a flame-out and the autorelight system is actuating the restart the engine
Where can the crew check engine oil quantity?
MFD Status page
What is ATTCS?
Automatic Takeoff Thrust Control System
What does ATTCS do?
Provides max thrust reserve (RSV) according to current rate previously selected via the MCDU on the T/O Dataset page
What will trigger an ATTCS event?
N1 difference > 15% between engines
Engine failure during takeoff or go-around
Windshear detection
How can the Pilot command RSV power?
By moving the thrust levers to MAX position whenever the ATTCS is armed
When is thrust reverse available?
weight-on-wheels (ground use only)
Thrust reverser must be stowed below what airspeed?
60 KIAS
What position must the thrust levers be in to enable the thrust reverser trigger?
Idle
If the thrust lever is placed in the MAX REV position and then releases, it does what?
It is spring loaded back to the MIN REV position
What happens if a thrust reverse inadvertently deploys?
FADEC limits respective engine thrust to IDLE
Can you deploy the thrust reverser on an engine that has failed on the landing roll?
Yes, up to 30 sec following the failure, then it is locked out
What is a Flexible Thrust Takeoff?
Reduced thrust takeoff on assumed temperature
What is the maximum flex allowed?
25% reduction
If you input a flex of 34 that change it to 39, how will it affect your N1 target?
It will drop your N1 target
Use of reduced takeoff thrust procedures is not allowed on?
Runways contaminated with standing water, slush, snow, or ice and are not allowed on wet runways unless suitable performance accountability is made for the increased stopping distance on the wet runway surface
Can you FLEX with windshear advisories in effect?
No
FLEX takeoffs are prohibited when?
Runway is contaminated
Windshear advisories are in effect and/or windshear is suspected
Runway performance does not allow for FLEX power
If you turn the START/STOP to STOP in flight, will the engine shutdown?
Not until the Thrust Lever is at IDLE
What happens to the bleed pressure during a crossbleed start?
Bleed pressure will drop and does not require the thrust lever to be adjusted to maintain pressure
What aircraft systems have fire detection and protection?
Engine
APU
Cargo compartments
Lavatories
The flight deck fire test tests which systems?
Engine fire
APU fire
Cargo smoke detection system
(DOES NOT TEST LAV)
What happens if you hold the fire test button for more than 10 sec?
APU will shut down
Are the flight deck and cabin protected from fire?
Yes
Flight deck - 1 hand held fire extinguisher
Cabin - 4 hand held fire extinguishers
Can both engine fire bottles be used for one engine?
Yes
What happens when an engine fire handle is pulled?
Closes the respective fuel SOV
Closes the respective engine hydraulic SOV
Closes the respective engine bleed SOV
Closes the X-BLEED SOV
Does pulling the engine fire handle discharge the bottle?
No
Will the Fire handle work without power on the aircraft?
Yes
Fire Extinguisher, Hydraulic SOV, and Fuel SOV are on the HOT BATT BUS
Describe the engine and APU fire detection system.
Engine and APU monitored by two detector loops
What is an indication of an APU fire?
Fire Bell and Master Warning triple chime
Red stripe in the APU EMER STOP button
APU FIRE EICAS message
Master Warning Lights
Will the APU automatically shutdown on the ground for a fire? In flight for a fire?
On the ground - 10 sec after APU fire detection and the EMER STOP button has not been pressed
In flight - NO
What happens if the APU EMER STOP button is pushed after a fire has been detected?
APU shuts off immediately without a 1 minute cooldown
APU fuel SOV closes
Red striped bar is replaced by the white striped bar, indicating the APU has shut down
APU FIRE EXTG button illuminates entirely red
What happens if the APU EMER STOP button is not pushed after a fire has been dectected?
After 1 minute the APU FIRE EXTG button illuminates
What does it take for the APU fire extinguisher light to illuminate?
APU EMER STOP button has been pushed in when an APU fire has been detected
OR
60 sec after an APU fire has been detected and no PIlot action has occurred
When do we get the red bar on the APU EMER STOP button?
APU fire is detected
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question 20 (231 of 338)
