Which acronym refers to the device used to supply electrical power on the ground?

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Multiple Choice

Which acronym refers to the device used to supply electrical power on the ground?

Explanation:
When a plane is on the ground, external electrical power is provided by a Ground Power Unit. This device supplies the aircraft with power for lights, avionics, cabin systems, and air conditioning while the engines and APU aren’t running. The common acronym for this equipment is GPU, which is widely used in airport operations and manuals. The other wordings aren’t the standard term used in practice, so GPU is the familiar, correct shorthand for this ground power source.

When a plane is on the ground, external electrical power is provided by a Ground Power Unit. This device supplies the aircraft with power for lights, avionics, cabin systems, and air conditioning while the engines and APU aren’t running. The common acronym for this equipment is GPU, which is widely used in airport operations and manuals. The other wordings aren’t the standard term used in practice, so GPU is the familiar, correct shorthand for this ground power source.

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