415-420-425 neiep Test Bank Correctly Solved
what increases strength of magnetic field? -ANSWER- increase current
how is poutput of elementary generator electrically connected "? -ANSWER- slip rings
and brushes
A conductor is moving through magetic field, what is the result? -ANSWER- reduced
emf
what components convert generator from AC to DC? -ANSWER- commutator and
brushes
you are replacing generator, what has lowest voltage ripple? -ANSWER- 8 loops
refer to figure, what direction will motor rotate? -ANSWER- clockwise
what effect does adding more turns on counter EMF? -ANSWER- Increases
refer to image, which of following contains mica? -ANSWER- commutator, _3
reassembling DC motor AFTER REPAIR -ANSWER- main frame
which component is made of electrical grade steel? -ANSWER- main frame
dc machine making grinding noise -ANSWER- bearing
what holds windings on dc motor? -ANSWER- pole piece
what describes shunt field windings? -ANSWER- many fine windings
dc motor has many heavy gauge windings -ANSWER- series
characteristics of DC machine trouble shooting -ANSWER- low resistance, high current
what type of DC motor is shown -ANSWER- compound
DC motor with NO FIELD wires coming from motor -ANSWER- permanent magnet
Dc motor best for speed control -ANSWER- shunt
series motor is best used for -ANSWER- leveling , starting
starting resistor picture, what is shown? -ANSWER- shunt
what increases strength of magnetic field? -ANSWER- increase current
how is poutput of elementary generator electrically connected "? -ANSWER- slip rings
and brushes
A conductor is moving through magetic field, what is the result? -ANSWER- reduced
emf
what components convert generator from AC to DC? -ANSWER- commutator and
brushes
you are replacing generator, what has lowest voltage ripple? -ANSWER- 8 loops
refer to figure, what direction will motor rotate? -ANSWER- clockwise
what effect does adding more turns on counter EMF? -ANSWER- Increases
refer to image, which of following contains mica? -ANSWER- commutator, _3
reassembling DC motor AFTER REPAIR -ANSWER- main frame
which component is made of electrical grade steel? -ANSWER- main frame
dc machine making grinding noise -ANSWER- bearing
what holds windings on dc motor? -ANSWER- pole piece
what describes shunt field windings? -ANSWER- many fine windings
dc motor has many heavy gauge windings -ANSWER- series
characteristics of DC machine trouble shooting -ANSWER- low resistance, high current
what type of DC motor is shown -ANSWER- compound
DC motor with NO FIELD wires coming from motor -ANSWER- permanent magnet
Dc motor best for speed control -ANSWER- shunt
series motor is best used for -ANSWER- leveling , starting
starting resistor picture, what is shown? -ANSWER- shunt
