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IEC Midterm Exam 2024 Actual Questions with Verified Answers, 100% Guarantee Pass

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IEC Midterm Exam 2024 Actual Questions with Verified Answers, 100% Guarantee Pass

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  • September 3, 2024
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IEC Midterm Exam.pdf file:///C:/Users/HP/Desktop/SSSSSSS/IEC%20Midterm%20Exam




IEC Midterm Exam Questions & Answers VERIFIED



1. In a 60 Hertz system, the voltage will go to "0" times per second?

ANS 120

2. What type of magnet is used for the coil in a relay?

ANS electromagnet

3. flow equals current flow.

ANS electron

4. law states "charged bodies attract or repel each other with a force that is directly

proportional to the product of the charges and inversely proportional to the square of the

distance between them."

ANS Coulomb's

5. If the RMS value is 125 volts, what is the peak value?

ANS 176.75

6. Which of the symbols, shown below, is used to represent an inductor in a schematic

circuit?

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ANS one that looks like a curly fry

7. Electrical current is the flow of .

ANS electrons

8. Which of the formulas, shown below, is correct to find the total of three capacitors

in a series circuit?

ANS CT=1/(1/C1 + 1/C2 + 1/C3)

9. Which of the formulas, shown below, is correct to find the equivalent of three inductors in

a parallel circuit?

ANS LT=1/(1/L1 + 1/L2 + 1/L3)

10. Compliance with Lockout/Tagout prevents an estimated fatalities each

year.

ANS 120

11. A lockout can be removed by .

ANS only the person who applied it

12. Use only Lockout/Tagout devices authorized for the particular equipment. These

devices are to be .

ANS I, II & III

13. OSHA's Lockout/Tagout standards outline required measures for control- ling
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hazardous energies.

ANS all of these

14. Insure that Lockout/Tagout devices identify the .

ANS individual

15. is the property of an electrical circuit that opposes any change in current.

ANS Inductance

16. In an AC circuit containing resistance plus inductance, or resistance plus capacitance,

or resistance plus inductance and capacitance, the opposition to current flow is called .

ANS impendance

17. The presence of inductive reactance in a circuit affects current flow.What is the

designated symbol for inductive reactance?

ANS XL

18. In an inductive circuit, the current the applied voltage.

ANS lags

19. Impedance is represented by the letter .

ANS z

20. In a purely capacitive circuit, current is said to the applied source

voltage.
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