2025 NEIEP 400 Final review 78
questions and correct answers.
2025 NEIEP 400 Final review 78
questions and correct answers.
What material should be used for seating brushes? - ANSWER-Sandpaper
Readings on the meter appear to be inaccurate, what should you do? - ANSWER-Test meter
A machine that converts mechanical energy into electrical energy - ANSWER-Generator
What is the purpose of interpoles in a motor? - ANSWER-Helps prevent neutral planes from shifting
In the basic loop circuit generator armature supplies DC power to what DC elevator hoist motor
component? - ANSWER-Motor Armature
If you have leakage resistance to ground, what will you use to test? - ANSWER-Megger
What kind of device would you use to measure current without disconnecting wiring? - ANSWER-Clamp
on ammeter
What is the synchronous speed of 3 phase, 60 Hz, 6 pole motor? - ANSWER-1200 RPM
Before attempting to measure resistance in an unknown resistor in a circuit, what must be done? -
ANSWER-Isolate from one side
What is the method used to resolve residual magnetism to an exitor? - ANSWER-Flashing the field
What is the inherent current limiter present for a rotating motor armature called? - ANSWER-CEMF
, 2025 NEIEP 400 Final review 78
questions and correct answers.
In order to protect internal circuits, how is the 10 amp input jack on a digital multimeter usually
protected? - ANSWER-Fused
What is the field protective relay in series with? - ANSWER-Motor shunt field
What material is used as insulation between the commutator and the armature shaft? - ANSWER-Mica
What elements make up commutator film? - ANSWER-Copper oxide film, graphite film, free graphite
particles and waters vapor components
What does it mean when saturation occurs? - ANSWER-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? - ANSWER-Ohmmeter
When should lubrication of motor bearings be done? - ANSWER-Not running
What would be the result if a meter set to current and connected to a voltage source? - ANSWER-Blow
fuse
When commutation is good, what color is the commutator? - ANSWER-Chocolate
What is a precision shunt used for measuring? - ANSWER-Current
On a reversible D.C. door operator motor, what angle is the brush mounted? - ANSWER-Radially, straight
up and down
What is the significance of the meter specification of ohms per volt? - ANSWER-Internal resistance at
specific voltage
questions and correct answers.
2025 NEIEP 400 Final review 78
questions and correct answers.
What material should be used for seating brushes? - ANSWER-Sandpaper
Readings on the meter appear to be inaccurate, what should you do? - ANSWER-Test meter
A machine that converts mechanical energy into electrical energy - ANSWER-Generator
What is the purpose of interpoles in a motor? - ANSWER-Helps prevent neutral planes from shifting
In the basic loop circuit generator armature supplies DC power to what DC elevator hoist motor
component? - ANSWER-Motor Armature
If you have leakage resistance to ground, what will you use to test? - ANSWER-Megger
What kind of device would you use to measure current without disconnecting wiring? - ANSWER-Clamp
on ammeter
What is the synchronous speed of 3 phase, 60 Hz, 6 pole motor? - ANSWER-1200 RPM
Before attempting to measure resistance in an unknown resistor in a circuit, what must be done? -
ANSWER-Isolate from one side
What is the method used to resolve residual magnetism to an exitor? - ANSWER-Flashing the field
What is the inherent current limiter present for a rotating motor armature called? - ANSWER-CEMF
, 2025 NEIEP 400 Final review 78
questions and correct answers.
In order to protect internal circuits, how is the 10 amp input jack on a digital multimeter usually
protected? - ANSWER-Fused
What is the field protective relay in series with? - ANSWER-Motor shunt field
What material is used as insulation between the commutator and the armature shaft? - ANSWER-Mica
What elements make up commutator film? - ANSWER-Copper oxide film, graphite film, free graphite
particles and waters vapor components
What does it mean when saturation occurs? - ANSWER-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? - ANSWER-Ohmmeter
When should lubrication of motor bearings be done? - ANSWER-Not running
What would be the result if a meter set to current and connected to a voltage source? - ANSWER-Blow
fuse
When commutation is good, what color is the commutator? - ANSWER-Chocolate
What is a precision shunt used for measuring? - ANSWER-Current
On a reversible D.C. door operator motor, what angle is the brush mounted? - ANSWER-Radially, straight
up and down
What is the significance of the meter specification of ohms per volt? - ANSWER-Internal resistance at
specific voltage
