magnetic field of a DC shunt motor, by adding resistance in series with the field, could result in an overspeed condition

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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N1. Weakening of the magnetic field of a DC shunt motor, by adding resistance in series with the field, could result in an overspeed condition.
a) true b) false
N2. A shunt field relay is designed to_________.
a) shut down power to the shunt field circuit of a DC motor if the voltage gets to high b) increase the resistance of the shunt field circuit during an overload condition c) disconnect the armature from the power supply if the current in the shunt field circuit gets to high d) none of the above
N3- 18,650 watts equals_________ horsepower.
a) 9 b) 17 c) 25 d) none of the above

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