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NCCER ALTERNATING CURRENT 26201-14 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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NCCER ALTERNATING CURRENT 26201-14 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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NCCER ALTERNATING CURRENT 26201-14 QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
1. The step down turns ratio of a transformer with 200 Turns in the primary and 100 turns in the
secondary is ? - ANSWER 2:1
2. Opening the secondary of a CT under load will cause a dangerous level of ? - ANSWER Induce high
voltage
3. what is the hertz rating of an AC circuit is ? If the frequency is 20 cycles per 1/2 seconds ? - ANSWER
40Hz
4. Given: A circuit has an RMS voltage of 120VAC. what is the peak-to-peak voltage? - ANSWER 340V
5. A circuit has a peak voltage of 275V. What is the average voltage value? - ANSWER 175V
6. each of three equal capacitors in series has _____. - ANSWER one-third the applied voltage
7. The formula for inductive reactance is ? - ANSWER XL=2mfl
8. Given: An AC circuit containing resistance only. what is the current flow if the resistance is 15 ohms
voltage is 150 - ANSWER 10A
9. the current in an inductive current - ANSWER (C) lags the voltage
10. unless otherwise noted, the calculations in AC circuits use. - ANSWER (D) rms values
11. when frequency decreases, capacitive reactance _____. - ANSWER (A) increases
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