NEIEP 400 FINAL EXAM NEWEST ACTUAL EXAM QUESTIONS
05/19/2026
AND CORRECT ANSWERS
NEIEP 400 FINAL EXAM NEWEST ACTUAL EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+
Which is true when placing an ammeter into a circuit ?
The meter is placed in series with any component
Which of the following describes the most useful feature of the clamp - on ammeter ?
Does not require that connections be disturbed
Which of the following devices is an example of a reactive component that can store energy for long
periods of time causing an electrical hazard even with power removed ?
Capacitor
What must be done when testing a resistance to avoid false readings caused by parallel circuit paths ?
Remove one of the two wires to the item being tested
A minus sign in front of a reading of the digital voltmeter indicates which of the following ?
The positive lead is connected to the negative source
Which of the following statements best describes CEMF ?
Opposes the applied voltage .
5/19/2026
1
, NEIEP 400 FINAL EXAM NEWEST ACTUAL EXAM QUESTIONS
05/19/2026
AND CORRECT ANSWERS
Refer to the figure . What will be the phase relationship between the primary and secondary voltages ?
The secondary voltage will be 180 ° out of phase .
Which type of transformer would be used to prevent noise from being fed back to the line without
changing the voltage levels ?
Isolation transformer
What is the power available from a 68 kVA transformer connected in open delta configuration ?
39.44 kVA
The secondary winding of an 11,000 volt to 220 volt transformer has 50 windings on the secondary How
many turns are on the primary winding ?
2500 turns
A transformer has 728 turns on the primary winding and 56 turns on the secondary With 120 volts
applied on the primary , what is the output voltage on the secondary ?
5/19/2026
9.23 volts
2
, NEIEP 400 FINAL EXAM NEWEST ACTUAL EXAM QUESTIONS
05/19/2026
AND CORRECT ANSWERS
A transformer has a primary voltage of 440 V with 100 turns and a 15 : 1 voltage ratio of transformation
. With a primary current of 25 amps , what is the current in the secondary ?
375 amps
Which statement best describes eddy currents ?
They are circulating currents set up by magnetic induction .
With the following values : Ep = 208 VAC ; Es = 35 VAC ; Ip = 3.8 amps ; Is = 21.42 amps , what is the
efficiency of this transformer ?
95 %
Which of the following would describe a transformer with a fixed voltage transformation ratio of 1:12 ?
Step - up transformer
Which of the following would describe a transformer with a primary current of 27 amps and a secondary
current of 1 amp ?
Step - down transformer
Which statement is correct regarding transformers?
The primary winding terminals are identified with the letter H
5/19/2026
3
05/19/2026
AND CORRECT ANSWERS
NEIEP 400 FINAL EXAM NEWEST ACTUAL EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+
Which is true when placing an ammeter into a circuit ?
The meter is placed in series with any component
Which of the following describes the most useful feature of the clamp - on ammeter ?
Does not require that connections be disturbed
Which of the following devices is an example of a reactive component that can store energy for long
periods of time causing an electrical hazard even with power removed ?
Capacitor
What must be done when testing a resistance to avoid false readings caused by parallel circuit paths ?
Remove one of the two wires to the item being tested
A minus sign in front of a reading of the digital voltmeter indicates which of the following ?
The positive lead is connected to the negative source
Which of the following statements best describes CEMF ?
Opposes the applied voltage .
5/19/2026
1
, NEIEP 400 FINAL EXAM NEWEST ACTUAL EXAM QUESTIONS
05/19/2026
AND CORRECT ANSWERS
Refer to the figure . What will be the phase relationship between the primary and secondary voltages ?
The secondary voltage will be 180 ° out of phase .
Which type of transformer would be used to prevent noise from being fed back to the line without
changing the voltage levels ?
Isolation transformer
What is the power available from a 68 kVA transformer connected in open delta configuration ?
39.44 kVA
The secondary winding of an 11,000 volt to 220 volt transformer has 50 windings on the secondary How
many turns are on the primary winding ?
2500 turns
A transformer has 728 turns on the primary winding and 56 turns on the secondary With 120 volts
applied on the primary , what is the output voltage on the secondary ?
5/19/2026
9.23 volts
2
, NEIEP 400 FINAL EXAM NEWEST ACTUAL EXAM QUESTIONS
05/19/2026
AND CORRECT ANSWERS
A transformer has a primary voltage of 440 V with 100 turns and a 15 : 1 voltage ratio of transformation
. With a primary current of 25 amps , what is the current in the secondary ?
375 amps
Which statement best describes eddy currents ?
They are circulating currents set up by magnetic induction .
With the following values : Ep = 208 VAC ; Es = 35 VAC ; Ip = 3.8 amps ; Is = 21.42 amps , what is the
efficiency of this transformer ?
95 %
Which of the following would describe a transformer with a fixed voltage transformation ratio of 1:12 ?
Step - up transformer
Which of the following would describe a transformer with a primary current of 27 amps and a secondary
current of 1 amp ?
Step - down transformer
Which statement is correct regarding transformers?
The primary winding terminals are identified with the letter H
5/19/2026
3
