NCCER ALTERNATING CURRENT 26201-14 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024

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