25. As you walk up to a machine, you see a technician tapping on the back section of a DC motor with a lead mallet. This technician is A. looking for weak or worn brushes. B. checking for end bell cracks. C. cleaning the commutator.
25. As you walk up to a machine, you see a technician tapping on the back section of a DC motor with a lead mallet. This technician is A. looking for weak or worn brushes. B. checking for end bell cracks. C. cleaning the commutator.
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter12: Power System Controls
Section: Chapter Questions
Problem 12.12P
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25. As you walk up to a machine, you see a technician tapping on the back section of a DC motor with a
lead mallet. This technician is
A. looking for weak or worn brushes.
B. checking for end bell cracks.
C. cleaning the commutator.
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