16.a. Enclosures housing motor control equipment in a dusty indoor environment where there is danger of explosion should be classified as A. NEMA 7. B. NEMA 12. C. NEMA 1. D. NEMA 9. 16.b. Feedback is used in drive systems to A. remove the load quickly and accurately. B. give the drive information on the status of the motor and load. C. give operators information on the status of the drive. D. reduce the startup torque of the motor and load.
16.a. Enclosures housing motor control equipment in a dusty indoor environment where there is danger of explosion should be classified as A. NEMA 7. B. NEMA 12. C. NEMA 1. D. NEMA 9. 16.b. Feedback is used in drive systems to A. remove the load quickly and accurately. B. give the drive information on the status of the motor and load. C. give operators information on the status of the drive. D. reduce the startup torque of the motor and load.
Chapter56: Magnetic Clutch And Magnetic Drive
Section: Chapter Questions
Problem 3SQ
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16.a. Enclosures housing motor control equipment in a dusty indoor environment where there is danger of
explosion should be classified as
A. NEMA 7.
B. NEMA 12.
C. NEMA 1.
D. NEMA 9.
16.b. Feedback is used in drive systems to
A. remove the load quickly and accurately.
B. give the drive information on the status of the motor and load.
C. give operators information on the status of the drive.
D. reduce the startup torque of the motor and load.
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