Segundo Test

The GATU transform: 235 Vac to 115 Vac. 235 Vac to 28 Vdc. 115 Vac to 28 Vdc.

How is the APU battery charged?. By a Battery Charger supplied from the F/O INSTR BUS. By a Battery Charger supplied from the HOT BATTERY BUS. By a Battery Charger supplied from the CAPT INSTR BUS.

The Cabin Attendant Handset has interface with... a Speaker Drive Modules (SDM). a Passenger Service Modules (PSM). a Cabin Zone Unit (CZU).

Which of the BATTERY indicator lights show a minimum of 30 minutes remains before battery charge is depleted during test?. MEDIUM. HIGH. LOW.

The BACK UP BUS is able to supply: The CAPT INSTR BUS and F/O INSTR BUS. The L 115VAC and R 115VAC busses. The 28VDC L-TRU, 28VDC C1-TRU, 28VDC C2-TRU and 28VDC R-TRU busses.

The Generator Neutral Relay (GNR): Closes when VFSG operates as a starter and opens when the VFSG operates as a generator. Opens when VFSG operates as a starter and closes when the VFSG operates as a generator. Remains closed normally and opens in case of overload condition.

The AOHE has an Air Valve which is controlled by: The Engine Electronic Controller (EEC), (FADEC). By the Bus Power Control Unit (BPCU). By the Generator Control Unit (GCU).

The Cabin Zone unit (CZU): Controls cabina area lighting. Changes the digital signal to analog signal. Are touch screen.

What is the function of Passenger Service Modules (PSM)?. To control the Boarding Music and Passenger Speakers. To control Emergency Lights. To control the large passenger information signs and individual lights.

The Main Battery Charger gets 28Vdc from: First Officer Instrument Bus. HBB. Captains Instrument Bus.

What happens with the audio signals if the common data network fails (CDN)?. The audio communications will be inoperative until the end of flight. The crew will use the audio override panel to reconfigure the system. The audio is sent thought the Audio Gateway Unit (AGU) for backup.

The E-BPSU changes: 28 Vdc to +/- 270 Vdc. 28 Vdc to +/- 130 Vdc. 235 Vac to 28 Vdc.

Where can you control the emergency lighting system?. From P5 or master attendant switch panel (ASP). From CAPs. From P5 only.

What is the function of ATUs (autotransformer units): Changes 235Vac to +/- 270Vdc for the common motor start controllers (CMSC). Convert 235Vac in 115Vac or 115Vac in 235Vac. Change 235Vac in 28Vdc.

the VFSGs are used for: Start motor only. Generation system only. Generation system and start motor.

The power for the emergency lights comes from: WELS control units (WCU) batteries. RPDUs (115Vac). Aircraft battery.

How many Cabin Zone Units (CZU) are there in the a/c?. 2, one for bussiness class and one for economy. Only one for the whole a/c. 3, one for each one of the 3 zones.

The Start Power Unit (SPU): Change 235Vac to 28Vdc. Change 28Vdc from the APU battery to 115Vac for APU battery start. Change 235Vac or 115Vac to +/-270Vdc for the Common Motor Starter Controller (CMSC).

The main function of Remote Power Distribution System (RPDS) is: It supplies 28Vdc and 115Vac to electrical loads of 50 Amps or less. It supplies 28Vdc and 115Vac to electrical loads of 10 Amps or less. It supplies 28Vdc and 115Vac to electrical loads of 10 Amps or more.

To get the Health Status (failures) of the Cabin Service System, in the Cabin Service System Controller (CSSC), the access is through: Either the Maintenance Laptop or CAP. CAP (cabin attendant panel) only. The main tenace laptop only.

SELCAL: In which unit is located the ¨SELCAL¨, decoder function?. In the AGUs. In the HF transceivers. In the VHF transceivers.

Which component is used to control the Lh AFT External Power Contactor to open or close?. The L2 GCU. The Right BPCU. The Left BPCU.

The Service Interphone System lets personnel talk with each other from flight compartment and: P40 & APU compartment. P40 & P57. Fwd & Aft E/E.

The transformer rectifier units (TRU): Convert 235Volts in 115Volts or 115Volts in 235Volts. Change 235Vac to 28Vdc. Changes 235Vac to +/- 270Vdc for the common motor start controllers (CMSC).

If the ACP (Audio Control Panel) of the captain side fail, how can use the observer ACP with: Turning OFF and back to ON the captain ACP. Using the observer audio override selector switch in the P8. Swapping the ACPs.

How is the Variable Frequency Starter Generator (VFSG) cooled down?. By the Oil Heat Exchanger (OHE). By an Air/Oil Heat Exchanger (AOHE). By an Air Heat Exchanger (AHE).

During Emergency Light TEST, the signal to the remove WCU is: Wireless. Wired. During test the remote WCU are not used.

Current Return Network (CRN) provides: Return path for normal AC current only. Return path for normal and fault AC and DC current. Path between main AC busses.

Battery Diode Module (BDM) is used to: Keep the main battery charged from external power directly. Rectify DC voltage on dc system. Make sure the main battery can be charged by battery charger only.

The frequency of HF and VHF communication systems is selected through?. Their own panels. Tuning Control Panel (TCP). Head-Up displays (HUD).

To establish comunication between the Flight interphone system and Service interphone: The "SVC Intph" sw, in the P5, in ON position. The ACP, "CAB MIC SW" in ON position. The TCP, selection mode in CAB.

Where are the volumen control for the speakers in the flight deck?. In the Audio Control Panels. In the speakers itself. In the Flight Control Wheel.

What is the function of CBIC. Monitor and control the electrical power system. Monitos and control electronic circuit breakers. Is used to control and monitoring contactors (ELCC's, BTB, etc).

Emergency lights get power from batteries if: Airplane power fails. One VFSG fails in flight. All VFSG are lost in flight and APU works normally.

How can the airplane be in the virtual GROUND HANDLING mode?. If forward external power is connected and selected ON, and other electrical power is supplied. If forward external power is connected but not selected ON, and no other electrical power is supplied. If aft external power is connected and selected ON, and no other electrical power is supplied.

What component change 235Vac or 115Vac to +/- 270Vdc?. ATUs. ATRUs. CMSCs.

What kind of HF antenna is used in the 787-9?. It is a wire type antenna. It is an integral type antenna, located in the leading edge of the vertical stabilizer. It is a blade type antenna.

What is the only Audio Control Panel (ACP) used during battery towing operation?. The First Officer Audio Control Panel. The First Observer Audio Control Panel. The Captain Audio Control Panel.

What is meaning of EICAS msg, RADIO TRANSMIT CAPT, F/O or OBS?. A VHF or HF communication system transmits for more the 30 seconds. A VHF or HF communication transceiver is not modulating the signal. Some of the flight crew members want to use VHF or HF transeivers.

SATCOM: The diplexer low noise amplifier (DLNA): Lets the SATCOM receive or transmit signals at a time (half duplex). Lets the SATCOM receive signals only. Lets the SATCOM receive or transmit signals at the same time (full duplex).