Liquid Fuels Volume 2

30 Questions | Total Attempts: 60

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Liquid Quizzes & Trivia

Liquid Fuels Volume 2 CerTest


Questions and Answers
  • 1. 
    A magnet that is magnetized by induction from an external source is called?
    • A. 

      External Magnet

    • B. 

      An artifical magnet

    • C. 

      U magnet

    • D. 

      Internal Magnet

  • 2. 
    What best descibes a schematic diagram?
    • A. 

      Called a one line diagram, not usefull for trouble shooting

    • B. 

      Called a one line diagram, very usefull for trouble shooting

    • C. 

      Called a 2 line diagram, not usefull for troubleshooting

    • D. 

      Called a 2 line diagram, very useful for trouble shooting

  • 3. 
    How much current flow is in a circuit with 24 volts applied and with 72 OHMS resistance
    • A. 

      .3 ampers

    • B. 

      .33 ampers

    • C. 

      .02 ampers

    • D. 

      .22 ampers

  • 4. 
    The joint resistance of a parallel circuit is equal to the applied voltage divided by what
    • A. 

      Voltage

    • B. 

      Resistance

    • C. 

      Total Current

    • D. 

      Conductivity

  • 5. 
    How is the measurement of the apparent power an of AC electrical system expressed
    • A. 

      Amperes

    • B. 

      OHMS

    • C. 

      Farads

    • D. 

      Kilovolt-amperes

  • 6. 
    What unit of measurement is used when calculating the inductance of a coil
    • A. 

      Henry

    • B. 

      Farad

    • C. 

      Kilovolts

    • D. 

      Amps

  • 7. 
    A 110-volt AC motor reads 20 inline amperes, and the inline voltmeter shows only 1,936 being consumed, what is the power factor of the AC Circuit
    • A. 

      70% pf

    • B. 

      78% pf

    • C. 

      80% pf

    • D. 

      88% pf

  • 8. 
    What type of generator has bushings riding ont he commutator to carry the current to a external circuit
    • A. 

      AC Type

    • B. 

      DC type

    • C. 

      AC/DC Type

    • D. 

      All the above

  • 9. 
    What is the open circuit voltage of a lead- acid storage battery
    • A. 

      .2 volts

    • B. 

      2 volts

    • C. 

      2.2 volts

    • D. 

      2.22 volts

  • 10. 
    What is the primary voltage of a transformer that has a secondary voltage of 240 volts and is rated 1-3 turn ratio
    • A. 

      70 volts

    • B. 

      75 volts

    • C. 

      80 volts

    • D. 

      85 volts

  • 11. 
    What item is not a part of a DC motor
    • A. 

      Bushings

    • B. 

      External windings

    • C. 

      Stator

    • D. 

      Throttle bushing

  • 12. 
    The magnetic feild of a 3 phase motor rotor is caused by
    • A. 

      Current flow in the rotor

    • B. 

      Resistance in the rotor

    • C. 

      Current flow on the stator

    • D. 

      Resistance to the stator

  • 13. 
    In what way does a DC Shunt motor have the feild coils and armature connected
    • A. 

      In series

    • B. 

      In parrallel

    • C. 

      Opposite

    • D. 

      Together

  • 14. 
    What is the power in watts consumed by a circuit with 120 volots applied and a resistance of 12 ohms
    • A. 

      12 watts

    • B. 

      120 watts

    • C. 

      1,200 watts

    • D. 

      12,000 watts

  • 15. 
    What should you connect and how, to operate a single phase dual voltage motor on high voltage
    • A. 

      Run windings in parrallel

    • B. 

      Run windings in series

    • C. 

      Stator in parrallel

    • D. 

      Stator in series

  • 16. 
    The squirrel- cage winding has inductive reactance and is placed beneath what
    • A. 

      The stator

    • B. 

      The Bushings

    • C. 

      The wound rotor section

    • D. 

      The voltage supply

  • 17. 
    What motor requires some starting
    • A. 

      Single phase DC motor

    • B. 

      Dual phase DC motor

    • C. 

      Single phase AC motor

    • D. 

      Dual phase AC motor

  • 18. 
    What are the characteristics of a 3 phase motor
    • A. 

      Single voltage

    • B. 

      Dual voltage

    • C. 

      Thriple voltage

    • D. 

      Either single or dual voltage motors

  • 19. 
    An indication of an open rotor in a squirrel cage motor is?
    • A. 

      Excessive heat

    • B. 

      Loud noise

    • C. 

      The motor slowing under load

    • D. 

      All the above

  • 20. 
    The internal windings of all 3 phase motors are
    • A. 

      Wye connected

    • B. 

      Delta connected

    • C. 

      Either wye or delta connected

    • D. 

      None of the above

  • 21. 
    Kirchoff's voltage law states that
    • A. 

      The sum of voltages around a close loop must equal applied voltage

    • B. 

      The sum of voltages around a open loop must equal applied voltage

    • C. 

      The sum of voltages around a closed loop must equal zero

    • D. 

      The sum of voltages around a open loop must equal zero

  • 22. 
    What completes an electrical cycle of an AC generator
    • A. 

      1 positive and 1 negative alteration

    • B. 

      2 postive and 1 negative alteration

    • C. 

      1 positive and 2 negative alteration

    • D. 

      2 positive and 2 negative alteration

  • 23. 
    The end play of a motor should not exceed what?
    • A. 

      1 inch

    • B. 

      3/4 inch

    • C. 

      1/10 inch

    • D. 

      1/64 inch

  • 24. 
    The method used to open the contacts on a across the line magnetic controller are?
    • A. 

      Flipping the breaker

    • B. 

      Spring tension and gravity

    • C. 

      With a screwdriver

    • D. 

      Applied voltage

  • 25. 
    The device used in most magnetic across the line motor controllers to reduce chater is
    • A. 

      Flexible coupling

    • B. 

      Non spark throttle bushings

    • C. 

      Shaded rings

    • D. 

      Stator cover