Assertion: alternator | /r/HasProperty | driven by the engine
Facets:
value: directly
type: MANNER
Source sentences:
text: The alternator runs at various RPM (which varies the frequency) since it is driven by the engine.
text: It should be noted that an AC alternator also produces a constant 400 Hz if that alternator is driven directly by an engine that rotates at a constant speed.
text: The alternator is driven by the engine, which rotates a permanently magnetized rotor.