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559 - ATPL - When an 'open circuit' occurs in an electrical supply system, the:

Question 559 - Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license

Fuse or CB should isolate the circuit due to excess current drawn.
Loss of continuity will prevent its working components from functioning.
Load as indicated by the ammeter will increase.
Component will operate normally, but will not switch off.

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