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In a three-phase synchronous motor type tachometer: 1 - the transmitter is a dir...
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In a three-phase synchronous motor type tachometer:
1 - the transmitter is a direct current generator
2 - the voltage is proportional to the transmitter drive speed
3 - the frequency is proportional to the transmitter drive speed
4 - the speed indicating element is a galvanometer
5 - the speed indicating element is an asynchronous motor driving a magnetic tachometer
The combination that regroups all of the correct statements is:
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