Hybrid Book - Chapter 6

8 Questions | Attempts: 45
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  • 1/8 Questions

    A PM electric machine contains all of the following except a ___.

    • Rotor
    • Stator
    • Magnet
    • Commutator
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  • 2. 

    Another method to control the regenerative braking power generated by a PM electric machine is to ___.

    • Increase the rotor speed

    • Increase the field-weakening current

    • Increase the lead vector

    • Eliminate power-inverter signaling

    Correct Answer
    A. Increase the field-weakening current
  • 3. 

    A V-shaped magnet arrangement in the rotor decreases the ___.

    • Maximum rotor speed

    • Minimum rotor speed

    • Rotor diameter

    • Back EMF

    Correct Answer
    A. Back EMF
  • 4. 

    A PM/BLDC operates with a(n) ___ stator to trigger timing control.

    • Synchronous

    • Asynchronous

    • Six-step

    • Axial

    Correct Answer
    A. Synchronous
  • 5. 

    In a PM/BLDC machine, an increase in stator current causes a(n) ___.

    • Increase in torque

    • Decrease in torque

    • Increase in rotor speed

    • Decrease in rotor speed

    Correct Answer
    A. Increase in torque
  • 6. 

    One method to control the regenerative braking power generated by a PM electric machine is to ___.

    • Control the lag angle

    • Control the lead angle

    • Increase the stator field speed

    • Decrease the stator field speed

    Correct Answer
    A. Control the lag angle
  • 7. 

    Field weakening of a PM electric machine is necessary to overcome the back EMF created by the ___.

    • Stator magnetic field

    • Stator speed

    • Magnets

    • Flux vector angle

    Correct Answer
    A. Magnets
  • 8. 

    The Toyota Prius PM electric machine controls ___ magnets poles on its rotor.

    • 4

    • 8

    • 16

    • 24

    Correct Answer
    A. 8

Quiz Review Timeline (Updated): Mar 15, 2022 +

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  • Mar 15, 2022
    Quiz Edited by
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  • Dec 19, 2012
    Quiz Created by
    Tacowallace
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