24 33

Where are the located HF transceivers?. AFT cargo compartment. Forward Cargo Compartment. AFT EE bay.

Which LRUs hasthe SELCAL decoder software?. Display and Crew Alerting Function(DCAF) partition on General Purpose Modules (GPMs). The SELCAL decoder LRU. Audio Gateway Units (AGU).

If the ACP (audio control panel) of the captain side fail, how can use the observer ACP with: Using the observer audio override selector sw in the PS. Swapping the ACPs. Turing OFF and Back to ON the captain ACP.

The start power unit (SPU): Change 28v de from the APU battery to 115v ac for APU battery start. Change 235v ac to 28v de. Change 235v ac or 115v ac to +/-270v de for the common motor start controllers (CMSC).

What happens if gas pressure in the battery enclosure goes above 3 psi?. Red indicator on the pressure burst indicator extends. Apressure burst disc ruptures and the gas vents overboard through a metal tube. Red indicator on the pressure burst indicator retract.

HF. What is the HF antenna coupler function?. It reduces the transmission and reception noise. It modifies the antenna length for better transmission and reception. It matches (tunes) the impedance of the antenna to the impedance of the transceiver.

The airplane is in the GROUND HANDLING mode. What do you do to give power to the ground service bus?. Ground Service switch on the master attendant panel. Ground Service menu on the Cabin Attendant Panel (CAP). Ground Service Enable on PS.

Which is the component to monitor the VSFGs oil temperature in the surface air oil heat exchangers (SAOHE). R BPCU for R1 and R2 VFSGS. L BPCU to L 1 and L2 VFSGs. Left and right EECs.

What electrical power does the VFSG provide to the aircraft?. The VFSG provides 235 VAC /250 KVA/ variable frequency. The VFSG provides 235 VAC /2 25 KVA/ variable frequency. The VFG rovides 115 VAC / 90 KVA 400 Hz.

The power for the emergency lights comes from: RPDUS (115 Vac). WELS control units (WCU) Batteries. Aircraft Battery.

The transformer rectifier units (TRU). Change 235v ac to +/-270v de for the common motor start controllers (CMSC). Convert 235Volts in 115Volts or 115Volts in 235Volts. Change 235v ac to 28v dc.

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

Makes alert and chime tones: Cabin zone unit (CZU). Cabin services system contraller (CSSC). Speaker drive module (SDM).

The battery State of Charge (SOC) indicator on PS panel lets you see the condition of the: Only the main battery. Only the APU battery. Main and APU batteries.

If the right BPCU loose its external power transformer rectifier unit, where does it takes power: R 28V DC bus. Backup bus. Left external power transformar rectifier unit.

If you have to communicate from Flight Deck (light crew) with P40 or P57 jack service interphone panels then: Select service interphone switch to "ON" in P40 and flight interphone on audio control panel. Select service interphone switch to "ON" in P57 and service interphone on audio control panel. Select service interphone switch to "ON" in PS and flight interphone (FLT) on audio control panel.

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

What are the CBIC control modes?. CBIC has three control modes: Limited, Full and Maintenance. CBIC has three control modes: Limited, Ground and Maintenance. CBIC has two control modes: Ground and Air.

How long could the emergency light operate?. Up to 20 minutes. Up to 30 minutes. Up to 15 minutes.

You can get access to the CABIN MAINTENANCE screens on the CAP and.... Maintenance Laptop. MCDF. EFB.

The main function of Secondary Power Distribution Units (SPDUs) is: To supply 115 VAC and 28 VDC power to loads of 50 amps and more. O To supply 115 VAC and 28 VDC power to loads of 1 O amps or less. To supply 115 VAC and 28 VDC power to loads of 50 amps or less.

The aft external power connection is used for these purposes: Start the right engine with external power (if APU is not available), operate a third hydraulic electric motor and Reduce loadshed when operating the packs on the ground for test purposes. Supply the Standby Power system on ground. Aft external power goes to the aircraft electrical buses.

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

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

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

What components change 235 v ac to 115 v ac?. ATU. SPDU. ATRU.

What is the purpose of the galley auto transformer unit (GATU)?. Changes 235v ac to 115v ac for the fwd galley. Changes 235v ac to 115v ac for the aft galley. Changes 115v ac to 235v ac for the aft galley.

If the Cabin Service System Controller (CSSC) fails: Only the handset on the master attendance panei continues to operate normally. Handsets continue to operate normally. All handsets fail.

All the communication and navigation systems are noisy, so the problem could be: Electrical power is not frequency regulated. Electrical power is not voltage regulated. Some Static Dischargers are broken or missing.

With forward external powers supplying electrical power to the airplane: Both left and right BPCUs can be software loaded. Only the left BPCU can be software loaded. Only the right BPCU can be software loaded.

Where do you reset the red LED in the EMERLIGHTS TEST switch on the master. ASP switch after the test?. ATA 33 CMCF GROUND TEST. ATA 33 CMCF SPECIAL FUNCTION. Cabin Maintenance menu on Cabin Attendance Panel (CAP).

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

What conditions turn on the VFSG GEN DRIVE light?. Low oil pressure and VFSG bearing faiture. High oil temperature and VFSG bearing failure. Low oil pressure and High oil temperature.

What components change 235 v ac to 115 v ac?. SPDU. ATRU. OTHER.

How are the handsets directory codes determined?. They are determined by a switch selections behind the craddle. They are determined by software loaded from the cabin service system controller (CSSC). They are determined by program pin.

What is the SATCOM LRU sends beam steering signals to the High Gain Antenna (HGA)?. Satellite Data Unit (SDU). Satellite Data Unit Configuration Module (SCM). Diplexer Low Noise Amplifier (DLNA) module.

The main function of Remote Power Distribution System (RPDS) is: It supplies 28 Vdc and 115 Vac to electrical loads of 1 O Amps and more. It supplies 28 Vdc and 115 Vac to electrical loads of 50 Amps or less. It supplies 28 Vdc and 115 Vac to electrical loads of 10 Amps or less.

When the towing switch is selected ON: Both are correct. Energizes the four EBPSUs. Power to the left VHF communications and the fight deck dome lights.