NEIEP 400 Final Review | 100% Correct
Answers | Verified | Latest 2024 Version
What material should be used for seating brushes? - ✔✔Sandpaper
Readings on the meter appear to be inaccurate, what should you do? - ✔✔Test meter
A machine that converts mechanical energy into electrical energy - ✔✔Generator
What is the purpose of interpoles in a motor? - ✔✔Helps prevent neutral planes from shifting
In the basic loop circuit generator armature supplies DC power to what DC elevator hoist motor
component? - ✔✔Motor Armature
If you have leakage resistance to ground, what will you use to test? - ✔✔Megger
What kind of device would you use to measure current without disconnecting wiring? - ✔✔Clamp on
ammeter
What is the synchronous speed of 3 phase, 60 Hz, 6 pole motor? - ✔✔1200 RPM
Before attempting to measure resistance in an unknown resistor in a circuit, what must be done? -
✔✔Isolate from one side
What is the method used to resolve residual magnetism to an exitor? - ✔✔Flashing the field
What is the inherent current limiter present for a rotating motor armature called? - ✔✔CEMF
, In order to protect internal circuits, how is the 10 amp input jack on a digital multimeter usually
protected? - ✔✔Fused
What is the field protective relay in series with? - ✔✔Motor shunt field
What material is used as insulation between the commutator and the armature shaft? - ✔✔Mica
What elements make up commutator film? - ✔✔Copper oxide film, graphite film, free graphite particles
and waters vapor components
What does it mean when saturation occurs? - ✔✔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? - ✔✔Ohmmeter
When should lubrication of motor bearings be done? - ✔✔Not running
What would be the result if a meter set to current and connected to a voltage source? - ✔✔Blow fuse
When commutation is good, what color is the commutator? - ✔✔Chocolate
What is a precision shunt used for measuring? - ✔✔Current
On a reversible D.C. door operator motor, what angle is the brush mounted? - ✔✔Radially, straight up
and down
What is the significance of the meter specification of ohms per volt? - ✔✔Internal resistance at specific
voltage
On the resistance scale of a digital meter, what does the lazy 8 symbol signify? - ✔✔Infinity
Answers | Verified | Latest 2024 Version
What material should be used for seating brushes? - ✔✔Sandpaper
Readings on the meter appear to be inaccurate, what should you do? - ✔✔Test meter
A machine that converts mechanical energy into electrical energy - ✔✔Generator
What is the purpose of interpoles in a motor? - ✔✔Helps prevent neutral planes from shifting
In the basic loop circuit generator armature supplies DC power to what DC elevator hoist motor
component? - ✔✔Motor Armature
If you have leakage resistance to ground, what will you use to test? - ✔✔Megger
What kind of device would you use to measure current without disconnecting wiring? - ✔✔Clamp on
ammeter
What is the synchronous speed of 3 phase, 60 Hz, 6 pole motor? - ✔✔1200 RPM
Before attempting to measure resistance in an unknown resistor in a circuit, what must be done? -
✔✔Isolate from one side
What is the method used to resolve residual magnetism to an exitor? - ✔✔Flashing the field
What is the inherent current limiter present for a rotating motor armature called? - ✔✔CEMF
, In order to protect internal circuits, how is the 10 amp input jack on a digital multimeter usually
protected? - ✔✔Fused
What is the field protective relay in series with? - ✔✔Motor shunt field
What material is used as insulation between the commutator and the armature shaft? - ✔✔Mica
What elements make up commutator film? - ✔✔Copper oxide film, graphite film, free graphite particles
and waters vapor components
What does it mean when saturation occurs? - ✔✔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? - ✔✔Ohmmeter
When should lubrication of motor bearings be done? - ✔✔Not running
What would be the result if a meter set to current and connected to a voltage source? - ✔✔Blow fuse
When commutation is good, what color is the commutator? - ✔✔Chocolate
What is a precision shunt used for measuring? - ✔✔Current
On a reversible D.C. door operator motor, what angle is the brush mounted? - ✔✔Radially, straight up
and down
What is the significance of the meter specification of ohms per volt? - ✔✔Internal resistance at specific
voltage
On the resistance scale of a digital meter, what does the lazy 8 symbol signify? - ✔✔Infinity
