Term
| How many Digital Acquisition Units (DAUs) does the EMB have? |
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Definition
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Term
| How many channels doeseach DAU have? |
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Definition
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Term
| What systems send information to DAU 1? |
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Definition
- Forward airplane systems
- The #1 Engine.
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Term
| What systems send information to DAU 2? |
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Definition
- Aft airplane systems
- The #2 Engine.
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Term
| What are the indications of a DAU channel A failure? |
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Definition
- EICAS caution message.
- The digital engine readouts are replaced with dashes on the failed DAU side.
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Term
| What action would you take after a DAU channel A failure? |
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Definition
| Select channel B by pressing the DAU 1 button on the EICAS reversionary panel |
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Term
| What is the indication of a DAU channel B failure? |
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Definition
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Term
| If a DAU channel A fails, will channel B automatically be selected? |
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Definition
| No. Must press the DAU button on the EICAS reversionary panel. |
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Term
| What is the purpose of the tuning backup control head (TBCH)? |
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Definition
| It is a backup means by which to tune COM#2 and NAV#2 if the RMU is inoperative. |
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Term
| What is being checked when the TO CONFIG Button is pressed? |
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Definition
- Parking brake off
- Flaps set for takeoff
- Spoilers closed
- Pitch trim in green range
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Term
| What conditions must be met in order for the Ground Spoilers to deploy? |
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Definition
- Aircraft on ground
- Thrust levers retarded
- Wheel speed above 25 kts.
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Term
| What conditions must be met in order for the Speed Brakes to deploy? |
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Definition
- Flaps 0° or 9°
- Thrust levers retarded
- Speed brake lever OPEN
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Term
| What might be the reason for a Speed Brake Lever Disagree caution message on the EICAS? |
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Definition
- Speed brake lever OPEN with:
- Thrust levers advanced; or
- Flaps set above 9
- Speed brake lever CLOSED;
- Taxi speed faster than 25 kts.
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Term
| How many emergency brake uses are available with the emergency brake accumulator? |
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Definition
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Term
| How many emergency brake uses are remaining if the EMERG BRK LO PRESS caution message is presented on the EICAS? |
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Definition
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Term
| How long will the pressure last in the parking brake accumulator? |
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Definition
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Term
| What flight director guidance is provided when the go-around buttons are pushed? |
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Definition
- ROL GA mode commanding a pitch attitude of 10°; then
- ROL IAS mode commanding 170 knots; then
- ROL IAS mode commanding the blue airspeed bug if unable 170 knots.
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Term
| What effect does pressing the go-around buttons have on the FMS during an approach? |
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Definition
| It sequences the missed approach in the FMS |
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Term
| When will the stall protection test light be illuminated? |
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Definition
- After initial power up
- After an unsuccessful test
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Term
| How often must the stall protection system be performed? |
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Definition
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Term
| What systems are lost if one of the stall protection cutout buttons are pressed? |
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Definition
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Term
| What would be disabled if you pressed the main pitch trim cutout button? |
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Definition
- Autopilot
- Main trim switches on yoke
- Speed brake auto-trim
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Term
| What lateral mode is entered when the roll control knob is turned? |
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Definition
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Term
| Can a heading be selected when the ROLL knob is not centered? |
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Definition
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Term
| What happens when the DUMP button is pressed? |
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Definition
| Both outflow valves open and cause a rapid decompression. Only works in AUTO mode. |
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Term
| How many outflow valves are active in the AUTO mode? |
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Definition
2.
- The electo-pneumatic outflow valve is commanded by the pressure controller
- The pneumatic outflow valve is slaved to follow it.
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Term
| How many outflow valves are active in the manual mode? |
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Definition
| 1. The pneumatic outflow valve. |
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Term
| What might happen if the manual selector knob on the pressurization panel is not in the DN position while in the AUTO mode? |
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Definition
| The pneumatic outflow valve could unslave from the electro-pneumatic outflow valve. |
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Term
| How would you know if the auto pressurization system completed a successful power up test? |
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Definition
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Term
| What happens if a landing field elevation is not entered into the auto pressurization controller? |
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Definition
| The system assumes an 8000 ft landing elevation. |
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Term
| If it became necessary to return to the departure airport, would it be necessary to enter its field elevation? |
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Definition
No. The cabin altitude is kept at the departure airport field elevation until:
- Theoretical cabin altitude increases; or
- 15 minutes.
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