The ____ is the point at which a breaker responds to a short-circuit current through a magnetically actuated trip arrangement.
A. long-time delay
B. frame size
C. instantaneous pickup current
D. instantaneous opening
Answer: C
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For the op amp shown in Fig. 11.86, calculate:
 figure 1.png)
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If a cooling system operates at too cool of a temperature, the engine will _______________
A) Produce more torque B) Have more efficiency C) Pre-ignite or detonate D) Produce higher emissions
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The turns ratio required to match a 50 ? source to a 200 ? load is ________
A) 1:4 B) 4:1 C) 2:1 D) 1:2
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One method of determining harmonic problems on single-phase systems is to make two separate current checks. When this is performed, a ratio of average to true-RMS equal to 0.5 indicates _____ harmonic distortion.
A. ?no B. ?moderate C. ?extreme
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