The document is an exam for Eaton University's Electrical Product Training Mastery Assessment on medium voltage power circuit breakers. It contains a 16 question multiple choice exam testing knowledge of circuit breaker components, ratings, standards, and technologies. Upon completion, the exam can be emailed or faxed for grading, and the student and their Eaton representative will be notified of the results.
The document is an exam for Eaton University's Electrical Product Training Mastery Assessment on medium voltage power circuit breakers. It contains a 16 question multiple choice exam testing knowledge of circuit breaker components, ratings, standards, and technologies. Upon completion, the exam can be emailed or faxed for grading, and the student and their Eaton representative will be notified of the results.
The document is an exam for Eaton University's Electrical Product Training Mastery Assessment on medium voltage power circuit breakers. It contains a 16 question multiple choice exam testing knowledge of circuit breaker components, ratings, standards, and technologies. Upon completion, the exam can be emailed or faxed for grading, and the student and their Eaton representative will be notified of the results.
The document is an exam for Eaton University's Electrical Product Training Mastery Assessment on medium voltage power circuit breakers. It contains a 16 question multiple choice exam testing knowledge of circuit breaker components, ratings, standards, and technologies. Upon completion, the exam can be emailed or faxed for grading, and the student and their Eaton representative will be notified of the results.
Mastery Assessment Module 6: Medium Voltage Power Circuit Breakers - (EDUCM011B645A)
Instructions: Complete all the sections of this exam. E-mail the exam to EETraining@eaton.com, or fax to 440-516-6628 for grading. If you provide an e-mail address, your test results will be e-mailed to you within 10 days; otherwise, you will receive your test results by mail. If you have any questions about your exam, contact Eaton University Product Training at 440-516-6631.
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The sales representative you list below will be notified of your completion of this exam to assist you with any further learning needs and application. The sales representative will not be given your test score; your score will remain confidential.
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Exam Results Total Questions: 16 Passing Score: 80% Your Score:
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Eaton University - Electrical Product Training Mastery Assessment Module 6: Medium Voltage Power Circuit Breakers - (EDUCM011B645A)
1.) A type of medium voltage power circuit breaker no longer in common use in switchgear is the Magnetic Air Type circuit breaker. True False
2.) Vacuum interrupters for circuit breaker duty must be capable of interrupting currents of 12 to 50 kA (and up) at voltages up to 38 kV. True False
3.) If the dielectric in a vacuum interrupter does not reach sufficient strength fast enough, the arc will re-ignite. True False
4.) IEC stands for: _________________________.
Industrial Electromechanical Commission International Electricity Commission International Electro-technical Commission
5.) Short Circuit Current in the ANSI ratings chart is the equivalent to the _________ in the IEC ratings chart. Short circuit current Normal current Voltage class Maximum voltage
6.) A medium voltage power circuit breaker must meet the requirements of ______, _______, _______, and ______ to be considered “world-class”. ANSI, UL, IEEE, NEMA ANSI, UL, IEC, NEMA ANSI, IEC, IEEE, NEMA IEEE, IEC, UL, NEMA
Page 1 of 3 Eaton University - Electrical Product Training Mastery Assessment Module 6: Medium Voltage Power Circuit Breakers - (EDUCM011B645A)
7.) Continuous Current in the ANSI ratings chart is the equivalent to the _________ in the IEC ratings chart. Normal current Voltage class Maximum voltage Short circuit current
8.) The highest voltage, at which the breaker can operate, according to IEC charts, is the ___________. Normal Voltage Voltage class Maximum voltage Continuous Voltage
9.) Which enclosure assembly method separates compartments within the switchgear by metal barriers? Metal-clad assembly Metal-enclosed assembly Metal barrier assembly None of the above
10.) The rotary arc technology is not effective over as wide a range of short circuit currents and voltages as the puffer technology. True False
11.) Which enclosure assembly method does not necessarily separate compartments within the switchgear by metal barriers, and is common among low voltage equipment? Metal-clad assembly Metal-enclosed assembly Metal barrier assembly None of the above
12.) The spiral-shaped, copper-chrome contacts that provide a self-induced magnetic effect is a very inefficient arc control method. True False
Page 2 of 3 Eaton University - Electrical Product Training Mastery Assessment Module 6: Medium Voltage Power Circuit Breakers - (EDUCM011B645A)
13.) The specific trip unit used with a medium voltage power circuit breaker, which functions to detect a defective line or apparatus and dangerous or undesirable system conditions is called a ______________. Arc extinguisher Protective relay Vacuum interrupter None of the above
14.) The puffer extinguishing method is far less complicated than the rotary arc method. True False
15.) A medium voltage power circuit breaker uses a stored-energy operating mechanism, which uses motor driven hydraulics, to open the circuit breaker. True False
16.) One drawback of the medium voltage power circuit breaker is the closing springs cannot be charged manually. True False
