what is true about magnetic lines of force?
Give this one a try later!
They never cross one another.
AC induction motors use a _______ to act as a rotating field?
,Give this one a try later!
stator
What are the two circuits of a separately excited generator called?
Give this one a try later!
The shunt and series circuit.
Which of the following describes a pole piece's inability to proportionally change its
magnetic flux as changes in voltage occur?
Give this one a try later!
Hysteresis losses
an electromagnetic field in a generator is created by having current flow in the?
Give this one a try later!
coils wound around the pole piece.
What is reluctance in a magnetic circuit similar to in an electrical circuit?
Give this one a try later!
, resistance.
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?
Give this one a try later!
96%
What device is used to prevent starting in wye and delta concurrently?
Give this one a try later!
Walking beam
How can an eccentric commutator be corrected?
Give this one a try later!
turning the commutator with a lathe tool.
More coils and commutator segments are added to the elementary DC generator
Armature in order to help it do what?
Give this one a try later!
, Reduce Ripple
what does a small amount of arcing at the commutator indicate?
Give this one a try later!
A normal condition.
If a current carrying wire is placed perpendicular to a field created by two magnets of
opposite polarity what happens?
Give this one a try later!
The conductor is moved at right angles to the flux of the magnetic poles.
What should you do when cleaning a DC machine end bell?
Give this one a try later!
Avoid contacting the armature and brushes with solvent.
what is indicated by a resistance measurement of .250 M ohms on a digital
multimeter?
Give this one a try later!
Give this one a try later!
They never cross one another.
AC induction motors use a _______ to act as a rotating field?
,Give this one a try later!
stator
What are the two circuits of a separately excited generator called?
Give this one a try later!
The shunt and series circuit.
Which of the following describes a pole piece's inability to proportionally change its
magnetic flux as changes in voltage occur?
Give this one a try later!
Hysteresis losses
an electromagnetic field in a generator is created by having current flow in the?
Give this one a try later!
coils wound around the pole piece.
What is reluctance in a magnetic circuit similar to in an electrical circuit?
Give this one a try later!
, resistance.
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?
Give this one a try later!
96%
What device is used to prevent starting in wye and delta concurrently?
Give this one a try later!
Walking beam
How can an eccentric commutator be corrected?
Give this one a try later!
turning the commutator with a lathe tool.
More coils and commutator segments are added to the elementary DC generator
Armature in order to help it do what?
Give this one a try later!
, Reduce Ripple
what does a small amount of arcing at the commutator indicate?
Give this one a try later!
A normal condition.
If a current carrying wire is placed perpendicular to a field created by two magnets of
opposite polarity what happens?
Give this one a try later!
The conductor is moved at right angles to the flux of the magnetic poles.
What should you do when cleaning a DC machine end bell?
Give this one a try later!
Avoid contacting the armature and brushes with solvent.
what is indicated by a resistance measurement of .250 M ohms on a digital
multimeter?
Give this one a try later!
