Download Skywest ERJ 175 Systems Test With Complete Solution. and more Exams Advanced Education in PDF only on Docsity!
Skywest ERJ 175 Systems Test
With Complete Solution
What kind of checklist is the Safety and Power Up? - ANSWER Captain or FO Read And Do checklist
What is the minimum battery voltage for normal ops? - ANSWER 22.5V
What sources of external power are available to the ERJ 175? - ANSWER Both AC and DC
After turning on Batteries 1 and 2, which displays should come on? - ANSWER 2 and 3
What areas have fire detection and protection? - ANSWER Engines, APU, Cargo Compartments both aft and fwd, Lavatories
When must the safety and power up checklist be performed? - ANSWER The first flight of the day in a particular plane or when a power down was required.
Emergency Equipment - ANSWER Flashlight - both CA and FO, Life Vest - CA, FO and jumpseat, Circuit Breakers - CA, FO, Escape Rope - CA, FO, Landing Gear and RAT Safety Pin - FO, PBE & Halon Fire Extinguisher & Crash Axe - Doorway, Oxygen & Headset - Observer Seat
What are you looking for when battery 1 on and battery 2 Auto - ANSWER 1) Screen 2 (status page) & 3 (EICAS) should illuminate 2) IESS powering up ( sec alignment) 3) Battery Voltage (Min 22.5V for normal ops, 21.0 - 22. Recharge procedure, less than 20.9 - call maintenance)
What is the significance about 22.5V - ANSWER 22.5V should give enough power for 10 minutes of battery power with 2 APU restart attempts
What are we looking for when performing the Fire Extinguisher Test? - ANSWER 6 - 5 - 2 - 2 - 2 6-Lights on overhead panel, 5-EICAS messages, 2-Master Warnings, 2-ITT Fires, 2-Aural Warnings
APU FADEC will shut off if: - ANSWER In-Flight: UFO U-underspeed, F-FADEC critical fault, O-overspeed Ground: UFO SHELF S-sensor fail, H-high oil temp, E-EGT (high), L-low oil pressure, F-fire
APU FADEC fire detection automatic - ANSWER On Ground: 10 seconds lag on shutting it off. Anytime: 1 minute later the APU emergency stop button will light up.
Cargo Fire Halon Extinguisher How many? Differences? Usage? - ANSWER 2 Halon Extinguishers, high-rate goes off when button pressed. low-rate keeps going off in short spurts for 75 minutes.
Cargo fire extinguisher with EICAS message usage - ANSWER With message (IN FLIGHT) the button will blow the high-rate and then 1 minute after the low-rate will discharge automatically. (GROUND) pushing the button will blow the high-rate only. The button has to be pushed again for the low-rate bottle.
Cargo fire extinguisher without EICAS message usage - ANSWER (IN FLIGHT) push the button 2 times the low-rate is automatic. (GROUND) push the button 2 times and only the high-rate goes off. Need to push the button 1 more time for low-rate bottle.
What are the sources of electrical power - ANSWER DC Power - Battery, AC Power - GPU, APU, IDG, When they all fail the RAC takes over.
fails? - ANSWER Direct Mode
The originating flow is accomplished on the first flight of the day? - ANSWER True
What is the primary purpose of the power transfer unit (PTU)? - ANSWER Assist in landing gear extension and retraction
What are the primary flight controls? - ANSWER Ailerons which includes the multifunction roll spoilers, Elevators, Rudder
What are the secondary flight controls? - ANSWER Horizontal Stabilizer, Flaps & Slats, Multi-function spoiler, dedicated ground spoilers
What is the primary function and purpose for the FCM (flight control modules) - ANSWER This is the brain - the computer that decides yes I'm going to do this, or not in regards to moving the Rudder, Elevator, and Spoiler
What are the 4 ACE (Actuator Control Electronics) - ANSWER ACE is the signal box that translates our control inputs into electronic signals for the PCU to perform. P-ACE (primary) Rudder and Elevators S-ACE(spoiler) HS-ACE (horizontal stabilator) SF-ACE (slat/flap)
Protections the FMS gives us - ANSWER 1) Elevator Thrust Compensation Function 2) AOA Limiting - Stall Protection Activation 3) Multifunction Spoiler Operation Mode 4) Rudder Control System Operation Mode 5) Yaw Damper
What are the 3 conditions that prevent the spoilers from engaging or to close if open? - ANSWER 1) Low Speed < 180 knots. 2) 70 degrees Thrust Lever Angle 3) Flaps 2 or greater.
Electric PBIT (Power-up Built in Test). How long does it take to run? - ANSWER 3 minutes
Electric PBIT (Power-up Built in Test). When does it run? - ANSWER Automatically when the AC power is being used
Electric PBIT and Hydraulic PBIT (Power-up Built in Test). How long until they expires - ANSWER 50 hours after the test is complete.
Electric PBIT (Power-up Built in Test). How do you know it's running? - ANSWER "Flt ctrl test in progress" Shows on the EICAS
Electric PBIT (Power-up Built in Test). What causes the test to be interrupted
- ANSWER 1) Any hydraulic pump is running 2) Flight control Mode Panel switches are cycled 3) The AC power supply is interrupted.
Hydraulic PBIT (Power-up Built in Test). How long does it take to run? - ANSWER 1 minute
Hydraulic PBIT (Power-up Built in Test). When does it run? - ANSWER When all 3 hydraulic systems are pressurized. Manually by turning on hydraulic pump. Automatically after #1 engine starts
Hydraulic PBIT (Power-up Built in Test). What causes the test to be interrupted - ANSWER Any flight control surface is moved while the test is in progress.
Hydraulic PBIT (Power-up Built in Test). What temp will it not conduct the test - ANSWER below 10 degrees C (50 F)
minutes after the parking brake is set.
What needs to be done to hydraulic system 1 if we are taxing only with Engine 2 on? - ANSWER Manually turn on hydraulic system 1 with knob. Make sure it's turned back to AUTO when Engine 1 is on.
What hydraulic system is the landing gear on? - ANSWER System 2
What is the main purpose of the Power Transfer Unit (PTU)? - ANSWER Assist the landing gear retraction and extension. Should the right engine or right EDP failure occur.
When will the Power Transfer Unit (PTU) automatically start? - ANSWER Flaps not set to zero or landing gear not up and locked.
EDP 1 not failed.
Hydraulic reservoir 2 quantity above 12%.
When do we perform the originating checklist? - ANSWER First flight of the day
Change in Crew
Aircraft swap
Aircraft is left unattended (CA and FO do flow only: switches only: tests not required)
Maintenance has been performed on the aircraft
When must the ADS Probes be turned on? - ANSWER OAT -18 degrees and first flight
0 OAT and visible moisture
ADS Probes contaminated
PFD indicates incorrect info or EICAS Messages *AFCS Fail *AT Fail *AP Fail *FD Fail *YD Fail *App2 not avail
The PTU will automatically start on the ground when engine 2 or EDP 2 fails and - ANSWER PTU does not automatically activate on the ground.
If the right engine(2) is started prior to a single engine taxi, what must be done? - ANSWER Hydraulic system 1 must be switched to ON
In the AUTO position, when will hydraulic pump 3B operate in flight? - ANSWER When 3A fails
What will you do if you inadvertently interrupt the hydraulic PBIT or the flight control test and a "FLT CTRL Bit Expired" message appears? - ANSWER
After ATC clearance is received
When tasks are complete
What are the 4 B's on the before the start tasks - ANSWER Build It, Bug It, Brief It, Brake it
Bug It: What is the acronym for this part of the task? - ANSWER Course
Altitude
Source(Autopilot)
Speed (FMS)
Heading
How much does a chid weigh in Summer? Winter - ANSWER Summer: 82 lbs
Winter: 87 lbs
How much does an adult weigh in Summer? Winter - ANSWER Summer: 190 lbs
Winter: 195 lbs
How much does a standard bag weigh? - ANSWER 30 lbs
How much does a heavy checked bag weigh? - ANSWER 60 lbs
How much does a gate claimed/plane side bag weigh? - ANSWER 30 lbs
How much does an overhead bag weigh? backpack and/or rollerbag? - ANSWER 0 it's included in the adult weight
If you are asked to put your bag from the overhad bin down to the cargo bin how much does it weigh now? - ANSWER 30 lbs
How much does a bag or instrument weigh if it is seating in a seat. With a ticket? - ANSWER Same as a child 82 lbs in summer or 87 lbs in winter
Service Animal weight if in the cabin on lap? cabin in it's own seat? Cargo compartment? - ANSWER Cabin on lap = 0
Cabin own seat = like a child 82/
Cargo bin = actual weight
What is the tolerance between N1 in the EICAS and N1 on Release? - ANSWER +0.5 higher and -0.1 lower
All doors are closed
What triggers the below the line flow - ANSWER Locking the cockpit door
When should the APU be started? - ANSWER If environmental conditions permit (not too hot or cold) 10 minutes prior to pushback
What should be on if the ECS is off for takeoff? - ANSWER APU
Which side power the APU - ANSWER Right side
How long do you have to restart the APU when knob is turned to OFF? - ANSWER within a minute as long as still at 100%
How much does a planeside checked bag weight? - ANSWER As much as a standard bag. 30 lbs
How much does a ticketed bag weigh? - ANSWER as much as a child. 82/ lbs
What is the standard weight of a service animal or cabin pet - ANSWER
nothing
If your actual takeoff weight is higher than the Fliteview manifest MTOW what do you do? - ANSWER Call dispatch for a new release
Prior to conducting the takeoff briefing the PF will normally enter the flight plan into the FMS and both pilots must - ANSWER verify waypoints and restrictions in MFD plan page and restriction in the MCDU
How can you confirm the airplane is ready for pushback? - ANSWER The steer off message will be displayed on EICAS
Emergency brake is off
The pushback operator can see a green light
RSV is manually activated if ATTCS is engaged and - ANSWER Thrust lever are moved to MAX
Prior to takeoff a crossbleed start must be conducted - ANSWER To allow for two minute engine warm up.
FADEC will NOT automatically abort an engine start on the ground for - ANSWER No positive oil pressure within 10 seconds.
No ITT indication within 30 seconds of engine start.
ITT exceeds start limit (815C)
If oil pressure stabilizes below the engine limits
N1 and/or N2 failing to accelerate to stable idle speed (hung start)
An intermittent electrical pnuematic or starter malfunction occurs before the started disengagement
What kind of protection does the FADEC provide during an engine start malfunction? - ANSWER Cuts the fuel to the engine
"Engine Excedence" means what - ANSWER If ITT goes over the 815C limit
What does ATTCS do? - ANSWER A computer that gives you extra thrust power if needed.
At what throttle difference will Auto Throttles turn off - ANSWER 8 degrees
Prior to pushback the ramp crew communicates the light on the nose gear tow light is Red, what is the possible cause? - ANSWER Emergency brake on
If the FADEC automatically aborts the start, why is the memory item still
required? - ANSWER Starter control valve must be manually closed. FADEC only turns off the fuel
What consideration must be made if you elect to taxi single engine with the right engine? - ANSWER Hydraulic system 1 pump must be turned ON
After starting the 2nd engine, ensure N1 values are - ANSWER + 0.5% or not less than -0.1% of the target takeoff N1 values
The ATTCS automatically commands RSV whenever it's engaged, thrust lever in TOGA position, and - ANSWER Difference between both engine N1 values is greater than 15%
One engine failure during takeoff
One engine failure during go-around
Windshear detection
For what reason(s) may the after start checklist be delayed? - ANSWER If de-icing/anti-icing is required
Where are the flaps checked during the "After Start Checklist"? - ANSWER The flap lever detent
On the EICAS
On the ground should FOs leave the ADS probes heat switch on during the taxi out w/ an OAT of 0C and visible moisture? - ANSWER No this would inhibit the system heating logic on the ground after the engines are shut down.
When the CA calls for "Flaps 2/ APU Off flight control checklist" it is advisable, for proper transfer of power - ANSWER 30 seconds elapse after N stabilization prior to shutting down the APU
What are the Max taxi speeds on a contaminated surface? - ANSWER 10 straight/ 5 in turns.
Who handles the taxi lights? - ANSWER Normally the FO, the captain if necessary.
Which hydraulic system powers nosewheel steering? - ANSWER 2
The second engine should be started to allow for a _____ min warm up prior to taxi? - ANSWER 2
What type of brakes are installed on the ERJ 175? - ANSWER Carbon
What system(s) controls the steering - ANSWER Controlled by hydraulic system 2 and electronically controlled by the nosewheel steering.
What conditions would be conducive to taxiing with two engines on? - ANSWER Ramp/taxiway surface contamination
Maneuvering room in the ramp/gate is marginal
Taxi time to/from a runway is expected to be < 5 minutes
Airport specific-regulations prohibit single-engine taxi
Risk of injury to personnel or damage to equipment.
Max taxi speeds Straight and turns on dry runway? on contaminated runway
- ANSWER Dry straight 30, turns 10
Contaminated straight 10, turns 5
Which Hydraulic system provides pressure for the outboard brakes and inboard brakes? - ANSWER System 1 to outboard brakes, System 2 to inboard brakes
Why is it preferred to taxi single engine on Engine 1? - ANSWER System logic will turn on pump 2 when the left engine is running.
