NEIEP 400 FINAL REVIEW EXAM WITH CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY GRADED A+
2025 – 2026
A machine that converts mechanical energy into electrical energy - SOLUTIONGenerator
What is the purpose of interpoles in a motor? - SOLUTION-Helps prevent neutral planes from
shifting
In the basic loop circuit generator armature supplies DC power to what DC elevator hoist motor
component? - SOLUTION-Motor Armature
If you have leakage resistance to ground, what will you use to test? – SOLUTION Megger
What kind of device would you use to measure current without disconnecting wiring? -
SOLUTION-Clamp on ammeter
What is the synchronous speed of 3 phase, 60 Hz, 6 pole motor? - SOLUTION-1200 RPM
Before attempting to measure resistance in an unknown resistor in a circuit, what must be
done? - SOLUTION-Isolate from one side
What material should be used for seating brushes? - SOLUTION-Sandpaper
, Readings on the meter appear to be inaccurate, what should you do? - SOLUTIONTest meter
What is the method used to resolve residual magnetism to an exitor? - SOLUTIONFlashing the
field
What is the inherent current limiter present for a rotating motor armature called? - CORRECT
ANSWER-CEMF
In order to protect internal circuits, how is the 10 amp input jack on a digital multimeter usually
protected? - SOLUTION-Fused
What is the field protective relay in series with? - SOLUTION-Motor shunt field
What material is used as insulation between the commutator and the armature shaft? -
SOLUTION-Mica
What elements make up commutator film? - SOLUTION-Copper oxide film, graphite film, free
graphite particles and waters vapor components
What does it mean when saturation occurs? - SOLUTION-Holds all the magnetic lines
of flux it can hold
What kind of meter would you use to detect a ground in the armature coils? - CORRECT
ANSWER-Ohmmeter
When should lubrication of motor bearings be done? - SOLUTION-Not running
CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY GRADED A+
2025 – 2026
A machine that converts mechanical energy into electrical energy - SOLUTIONGenerator
What is the purpose of interpoles in a motor? - SOLUTION-Helps prevent neutral planes from
shifting
In the basic loop circuit generator armature supplies DC power to what DC elevator hoist motor
component? - SOLUTION-Motor Armature
If you have leakage resistance to ground, what will you use to test? – SOLUTION Megger
What kind of device would you use to measure current without disconnecting wiring? -
SOLUTION-Clamp on ammeter
What is the synchronous speed of 3 phase, 60 Hz, 6 pole motor? - SOLUTION-1200 RPM
Before attempting to measure resistance in an unknown resistor in a circuit, what must be
done? - SOLUTION-Isolate from one side
What material should be used for seating brushes? - SOLUTION-Sandpaper
, Readings on the meter appear to be inaccurate, what should you do? - SOLUTIONTest meter
What is the method used to resolve residual magnetism to an exitor? - SOLUTIONFlashing the
field
What is the inherent current limiter present for a rotating motor armature called? - CORRECT
ANSWER-CEMF
In order to protect internal circuits, how is the 10 amp input jack on a digital multimeter usually
protected? - SOLUTION-Fused
What is the field protective relay in series with? - SOLUTION-Motor shunt field
What material is used as insulation between the commutator and the armature shaft? -
SOLUTION-Mica
What elements make up commutator film? - SOLUTION-Copper oxide film, graphite film, free
graphite particles and waters vapor components
What does it mean when saturation occurs? - SOLUTION-Holds all the magnetic lines
of flux it can hold
What kind of meter would you use to detect a ground in the armature coils? - CORRECT
ANSWER-Ohmmeter
When should lubrication of motor bearings be done? - SOLUTION-Not running
