NEIEP 400 EVALUATION EXAM ACTUAL QUESTIONS AND
SOLUTIONS GRADED A+
✔✔An elevator that travels faster in the up direction when it is fully loaded that it does
when it is empty is _________-compounded - ✔✔Over
✔✔A shunt generators output drops as load is? - ✔✔Increased
✔✔Generator series field is connected in parallel with? - ✔✔Series field shunt
✔✔Series field Is connected is series with? - ✔✔Armature
✔✔Final acceleration step for a hoist motor? - ✔✔Weakening the shunt field
✔✔what type of generators pole pieces become excited by residual magnetism? -
✔✔Self excited
✔✔Most common cause of commutator problems? - ✔✔Brush pressure too light
✔✔Tranformer eddy currents cause - ✔✔core losses
✔✔DC motor speed is changed by? - ✔✔Varying the motor field or armature voltage
✔✔Threading on a commutator is evidenced by what condition? - ✔✔Rapid brush wear
✔✔An overcompounded elevator will exhibit what condition - ✔✔Empty car will travel
slower in the down direction near terminal landings
✔✔Synchronous speed can be described as? - ✔✔Rotational speed of the stators
magnetic field on an induction motor
✔✔Heavy slot bar markings indicate? - ✔✔Electrical overload
✔✔Series field is characterized by? - ✔✔Few turns of heavy gauge wire
✔✔Final acceleration step for DC hoist motor? - ✔✔Weakening the shunt motor
✔✔AC Induction motor uses? - ✔✔Stator
✔✔A meter is essentially a short circuit when connected to read? - ✔✔Current
✔✔Laminated armature core pieces reduce? - ✔✔Eddy currents
, ✔✔When an elementary DC generator covers AC to DC what is it called? -
✔✔Commutation
✔✔What Generator offers the most control for varying loads? - ✔✔Shunt Generator
✔✔If your transformer read H1 to H2 = OL on you multimeter after isolating the
transformer what would that indicate? - ✔✔Primary winding is open
✔✔How is a sleeve bearing lubricated? - ✔✔Oil carrier ring
✔✔When voltage change in a pole piece doesn't not produce a proportional change of
magnetic flux, it is considered? - ✔✔Hysteresis losses
✔✔Elevator is pulling through the brake after it stops at a floor. What is the likely
problem? - ✔✔Suicide circuit open
✔✔ 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
SOLUTIONS GRADED A+
✔✔An elevator that travels faster in the up direction when it is fully loaded that it does
when it is empty is _________-compounded - ✔✔Over
✔✔A shunt generators output drops as load is? - ✔✔Increased
✔✔Generator series field is connected in parallel with? - ✔✔Series field shunt
✔✔Series field Is connected is series with? - ✔✔Armature
✔✔Final acceleration step for a hoist motor? - ✔✔Weakening the shunt field
✔✔what type of generators pole pieces become excited by residual magnetism? -
✔✔Self excited
✔✔Most common cause of commutator problems? - ✔✔Brush pressure too light
✔✔Tranformer eddy currents cause - ✔✔core losses
✔✔DC motor speed is changed by? - ✔✔Varying the motor field or armature voltage
✔✔Threading on a commutator is evidenced by what condition? - ✔✔Rapid brush wear
✔✔An overcompounded elevator will exhibit what condition - ✔✔Empty car will travel
slower in the down direction near terminal landings
✔✔Synchronous speed can be described as? - ✔✔Rotational speed of the stators
magnetic field on an induction motor
✔✔Heavy slot bar markings indicate? - ✔✔Electrical overload
✔✔Series field is characterized by? - ✔✔Few turns of heavy gauge wire
✔✔Final acceleration step for DC hoist motor? - ✔✔Weakening the shunt motor
✔✔AC Induction motor uses? - ✔✔Stator
✔✔A meter is essentially a short circuit when connected to read? - ✔✔Current
✔✔Laminated armature core pieces reduce? - ✔✔Eddy currents
, ✔✔When an elementary DC generator covers AC to DC what is it called? -
✔✔Commutation
✔✔What Generator offers the most control for varying loads? - ✔✔Shunt Generator
✔✔If your transformer read H1 to H2 = OL on you multimeter after isolating the
transformer what would that indicate? - ✔✔Primary winding is open
✔✔How is a sleeve bearing lubricated? - ✔✔Oil carrier ring
✔✔When voltage change in a pole piece doesn't not produce a proportional change of
magnetic flux, it is considered? - ✔✔Hysteresis losses
✔✔Elevator is pulling through the brake after it stops at a floor. What is the likely
problem? - ✔✔Suicide circuit open
✔✔ 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
