Electricity

10 Questions

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Electricity

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Questions and Answers
  • 1. 
    Open contacts
    • A. 

      Have no voltage across

    • B. 

      Have voltage across

    • C. 

      Conduct current

    • D. 

      Allow no current

    • E. 

      Measure very high resistance

    • F. 

      No ohms

  • 2. 
    Closed contacts
    • A. 

      Have no voltage across

    • B. 

      Have voltage across

    • C. 

      Conduct current

    • D. 

      Allow no current

    • E. 

      Have low resistance

    • F. 

      Have high resistance if defective

  • 3. 
    A float bulb
    • A. 

      Normally will measure no resistance

    • B. 

      High resistance if defective

    • C. 

      Option3

    • D. 

      Option4

  • 4. 
    Pumps can be 3 wire or 2 wire
    • A. 

      Measure low resistance between terminals

    • B. 

      One winding between terminals is lower resistance

    • C. 

      One set of terminals is highest resistance

    • D. 

      The medium resistance is run and start

  • 5. 
    Capacitors
    • A. 

      Shift current to allow pump to start if 3 wire

    • B. 

      Measure low resistance then increases

    • C. 

      Option3

    • D. 

      Option4

  • 6. 
    No voltage
    • A. 

      Indicates a loos connection somewhere

    • B. 

      Can be at pump or at source of circuit

    • C. 

      Option3

    • D. 

      Option4

  • 7. 
    Voltage
    • A. 

      Can be measured at source

    • B. 

      Can be measured at load

    • C. 

      Is necessary to run

    • D. 

      Option4

  • 8. 
    Voltage
    • A. 

      Must match load

    • B. 

      If 3 phase all 3 must have voltage

    • C. 

      Option3

    • D. 

      Option4

  • 9. 
    Comparison
    • A. 

      If resistance is written the change can be documented

    • B. 

      Another system should have similar voltages

    • C. 

      Option3

    • D. 

      Option4

  • 10. 
    Current
    • A. 

      Is required to produce torque in a motor

    • B. 

      Voltage and current at the same time produce power

    • C. 

      Option3

    • D. 

      Option4