ESD Awareness Rev.ab

24 Questions  I  By Dsss7
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ESD awareness rev.ab

  
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  • 1. 
    ESD sensitive components can be damaged by as little as:    
    • A. 

      2,000 volts

    • B. 

      20 volts

    • C. 

      20,000 volts

    • D. 

      200 volts


  • 2. 
    Static electricity rapidly moves from one object to another when:     
    • A. 

      Any item is charged

    • B. 

      Two objects with different charges come close together

    • C. 

      Two objects with the same charge come close together

    • D. 

      None of the above


  • 3. 
    Most people feel ESD above:
    • A. 

      2,000 volts

    • B. 

      20.000 volts

    • C. 

      20 volts

    • D. 

      200 volts


  • 4. 
    Static electricity is best described as:
    • A. 

      An electrical charge at rest

    • B. 

      Charge induction

    • C. 

      Excessive valence electrons

    • D. 

      Electrostatic discharge


  • 5. 
    Static dissipative materials will allow a charge to be drained to ground,     
    • A. 

      Rapidly, creating an ESD event

    • B. 

      Too slowly to be effective for ESD control

    • C. 

      Only when the relative humidity is below 30 percent

    • D. 

      In a slow, controlled manner


  • 6. 
    A conductor will:
    • A. 

      Allow the flow of electrical current

    • B. 

      Prevent risk of shock

    • C. 

      Prevent a wire from shorting to another wire

    • D. 

      Resist flow of electrical current


  • 7. 
     Insulators:
    • A. 

      Conduct electricity

    • B. 

      Are grounding devices

    • C. 

      Resist flow of electricity

    • D. 

      Fall somewhere between conductors and static dissipating materials


  • 8. 
    Devices damaged by ESD:   
    • A. 

      Are not a problem as long as they pass electrical test

    • B. 

      Always fail immediately

    • C. 

      May work at first, then fail later

    • D. 

      Easily fixed by a qualified technician


  • 9. 
    If ESD isn’t controlled, the results are usually,
    • A. 

      Unhappy customers

    • B. 

      Lower product quality

    • C. 

      Higher cost

    • D. 

      All of the above


  • 10. 
    The reason personal grounding helps control ESD is:
    • A. 

      Charges are drained before they reach the ESD sensitive device

    • B. 

      Charges simply disappear

    • C. 

      Associates work in a more controlled manner

    • D. 

      People absorb charges before they reach the electronic assembly


  • 11. 
    People who are not wearing appropriate personal grounding,     
    • A. 

      Should not perform operations at ESD workstations

    • B. 

      Should not be in a ESD protected area

    • C. 

      Should not touch product

    • D. 

      All of the above


  • 12. 
    To control ESD, it’s best to wear clothes made of:  
    • A. 

      Rayon

    • B. 

      Polyester

    • C. 

      Cotton

    • D. 

      Wool


  • 13. 
    Shoe grounders are most effective for:
    • A. 

      Operations that require movement

    • B. 

      Seated operations

    • C. 

      Hand soldering operations

    • D. 

      All of the above


  • 14. 
    If you experience a problem when testing your wrist strap or shoe grounders:
    • A. 

      Wiggle the wrist strap, then tap it five times

    • B. 

      Place both feet on the metal plate, then plug in the wrist strap

    • C. 

      Let you supervisor know immediately

    • D. 

      All of the above


  • 15. 
    The wrist strap needs to be:                                    
    • A. 

      Worn snugly against the skin

    • B. 

      Able to be quickly connected or disconnected

    • C. 

      Attached securely to a ground wire with a current limiting resistor

    • D. 

      All of the above


  • 16. 
    Moving materials against each other will:
    • A. 

      Neutralize an electrostatic charge

    • B. 

      Create an electrostatic charge

    • C. 

      Remove static electricity

    • D. 

      Neutralize one material and create an electrostatic charge in the other material


  • 17. 
    To control ESD in the work area:
    • A. 

      Don’t touch static generating materials

    • B. 

      Don’t shuffle your feet when walking

    • C. 

      Don’t comb your hair

    • D. 

      All of the above


  • 18. 
    If you are not sure a device is ESD sensitive, you should:
    • A. 

      Treat it as if it were ESD sensitive

    • B. 

      Treat it like any other device

    • C. 

      Include it in the scrap report

    • D. 

      None of the above


  • 19. 
    To reduce the effect on non-conductive items in the work place:
    • A. 

      Apply an anti-static solution

    • B. 

      Operate with controlled humidity

    • C. 

      Use an air ionizer

    • D. 

      All of the above


  • 20. 
    Static dissipative materials:
    • A. 

      Dissipate humidity in the work area

    • B. 

      Ground electricity to make charges harmless

    • C. 

      Conduct electricity slowly enough to not damage ESD sensitive devices

    • D. 

      Prevent electricity from being conducted


  • 21. 
    Examples of non-conductive, static generating materials include:   
    • A. 

      Tape dispensers and hair brushes

    • B. 

      Vinyl binders and plastic covers

    • C. 

      Styrofoam cups and plastic safety glasses

    • D. 

      All of the above


  • 22. 
    When transporting ESD sensitive devices:    
    • A. 

      Always keep carts on ESD safe floors

    • B. 

      Use closed containers and carts designed for ESD sensitive devices

    • C. 

      Wear you wrist strap

    • D. 

      Make sure the relative humidity is under 10 percent


  • 23. 
    A sealed static shielding bag will:  
    • A. 

      Prevent physical damage

    • B. 

      Protect an enclosed device from ESD damage

    • C. 

      Degrade solderability

    • D. 

      All of the above


  • 24. 
    Components should be:  
    • A. 

      Handled only by the non-conductive portion of the body

    • B. 

      Pushed along a static dissipative surface, rather than handled

    • C. 

      Handled only by the leads

    • D. 

      All of the above


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