Final answer:
Loss of engine alternator in a 701D with the DEC will result in a loss of the generator field signal.
Step-by-step explanation:
Loss of engine alternator in a 701D with the DEC will result in a loss of the generator field signal. The DEC (Digital Electronic Control) system uses the generator field signal to regulate the output voltage and frequency of the generator. Without the generator field signal, the DEC will not be able to control and regulate the generator, leading to a loss of power generation.