What is the primary source of electrical power of an UH-60 helicopter?

• AC current
• DC current

How many independent AC power sources can we find in an UH-60 helicopter?

• 1
• 2
• 3

UH-60's electrical AC generators generate:

• 26 VAC
• 115/200 VAC
• 28 VDC

How is DC current obtained in an UH-60 helicopter?

• From a DC generator
• From battery only
• By conversion rom AC current

Which AC system is capable supplying the total helicopter electrical requirements?

• Auxilliary system only
• #1 system or #2 system
• any of the three AC systems

DC current is obtained by conversion from ____________

• AC primary busses
• AC essential busses
• APU bus

Which electrical power source has the highest priorty (will supersede another system/s)?

• External power
• #1 or #2 main generator
• APU generator

Which power source has higher priority (will supersede the other system)?

• APU
• External power

Main electrical generators are driven by ______________

• Transmission accessory modules
• Engine accessory gearboxes
• transmission input modules

Each main electrical generator provides ______________

• 26 VAC, 400Hz
• 115/200 VAC, 400Hz
• 115/200 VDC