×
Follow Us
Results 1 to 7 of 7

Official NETA Level 2 Exam Most Missed Questions, Spring 2000

 Jump to latest post
    #1
  1. SecondGen's Avatar
    SecondGen is offline
    I push buttons.
    NETA Level III Pro Subscriber
    Join Date
    Jan 2014
    Location
    United States
    Posts
    508
    Reputation

    Official NETA Level 2 Exam Most Missed Questions, Spring 2000

    Review the procedure for nulling the meter on a transformer turns ratio test set. 81% of technicians have missed this question.

    Understand accuracy ratings for metering. Particularly, know how to calculate accuracy at points other than full scale. 74% of technicians do not understand these concepts.

    Know the relative phase angle for a circuit having capacitive reactance and resistance. This question requires no calculation, just an understanding of the relative phase angles. 74% of technicians miss a question on this topic.

    Study up on confined space. 67% of technicians do not know who keeps cancelled entry permits for a year.

    Understand battery chargers and their role in a substation. In a correctly designed system, the charger must supply all load including indicating lamps and relay control power as well as maintain battery voltage. 63% of technicians believe that the charger provides current to maintain battery voltage and absolutely nothing else.

    Research neutralization numbers for transformer oil acidity tests. 63% of technicians miss a question on this topic.


    Note: 73 technicians took the NETA Level 2 exam in the spring of 2000. 29 passed.

    Source: Official NETA internal memo from Rod Hageman, Technical Exam Chair to NETA Accredited Representatives dated July 21, 2000. Re: Spring 2000 Level II Certification Exam.
    Last edited by SecondGen; December 1, 2015 at 02:08 PM.

  2. #2
  3. Join Date
    Jun 2015
    Posts
    12
    Reputation
    This is a good help! Thanks for all the help you give everyone on this site!

  4. #3
  5. Join Date
    Apr 2014
    Location
    United States
    Posts
    42
    Reputation
    Quote Originally Posted by SecondGen View Post
    Review the procedure for nulling the meter on a transformer turns ratio test set. 81% of technicians have missed this question.
    Help with this, can someone explain the procedure? Is it still relevant 15 years later?

  6. #4
  7. Join Date
    Nov 2015
    Location
    Sac, CA
    Posts
    10
    Reputation

    Null the meter on TTR test

    Quote Originally Posted by cjones09 View Post
    Help with this, can someone explain the procedure? Is it still relevant 15 years later?
    Could you give some reference on this? Manufacturer maybe?

  8. #5
  9. SecondGen's Avatar
    SecondGen is offline
    I push buttons.
    NETA Level III Pro Subscriber
    Join Date
    Jan 2014
    Location
    United States
    Posts
    508
    Reputation
    Quote Originally Posted by cjones09 View Post
    Help with this, can someone explain the procedure? Is it still relevant 15 years later?
    Not sure if this question is still on the NETA exam or not, but it would definitley be a good thing to know to better understand the theory behind turns-ratio tests. All of the following comes from an old windup TTR instruction book from 1951!

    Click image for larger version. 

Name:	ttr-simple-diagram.jpg 
Views:	545 
Size:	91.9 KB 
ID:	79

    Null Check: Adjust the dials to zero. Connect H1 clip to H2. Be sure X clamp screws do not touch anvils. Also see that the clamps to not touch each other.

    Crank the generator so that the voltmeter, V reads 8 volts. Observe the detector, D. The pointer should rest exactly on the null mark at the center of the scale.

    If necessary, adjust the meter to zero with a screwdriver while cranking at 8 volts. Stop cranking and again observe the detector. The pointer may rest slightly off zero. Should it be more than a sixteenth of an inch off, more troubleshooting is required.


    Nothin' to it! However, there are two other self check tests you should know: Zero ratio check and Unity Ratio Check.

    I found a PDF copy of the manual you can download here: http://exodus.poly.edu/~kurt/manuals...el%203-TTR.pdf for anyone who wants to read up on it. You can find the troubleshooting procedures on page 55.

  10. #6
  11. dnigra is offline Junior Member
    Join Date
    Jan 2016
    Location
    NJ
    Posts
    21
    Reputation
    Quote Originally Posted by SecondGen View Post
    Review the procedure for nulling the meter on a transformer turns ratio test set. 81% of technicians have missed this question.

    Understand accuracy ratings for metering. Particularly, know how to calculate accuracy at points other than full scale. 74% of technicians do not understand these concepts.

    Know the relative phase angle for a circuit having capacitive reactance and resistance. This question requires no calculation, just an understanding of the relative phase angles. 74% of technicians miss a question on this topic.

    Study up on confined space. 67% of technicians do not know who keeps cancelled entry permits for a year.

    Understand battery chargers and their role in a substation. In a correctly designed system, the charger must supply all load including indicating lamps and relay control power as well as maintain battery voltage. 63% of technicians believe that the charger provides current to maintain battery voltage and absolutely nothing else.

    Research neutralization numbers for transformer oil acidity tests. 63% of technicians miss a question on this topic.


    Note: 73 technicians took the NETA Level 2 exam in the spring of 2000. 29 passed.
    good stuff. thanks

  12. #7
  13. Join Date
    Apr 2015
    Posts
    11
    Reputation
    I've only ever used a wind up TTR. That's the one they make us new guys use! Great for learning the mechanical aspect.

Subscribe

Share this thread

Related Topics

  1. NETA Level 4 Most Missed Question Subjects, Spring 2000
    By SecondGen in forum NETA Level 4 Exam
    Replies: 2
    Last Post: April 26, 2020, 02:59 PM
  2. Replies: 3
    Last Post: February 2, 2016, 02:41 PM
  3. NETA Level 4 Category List, Spring 2000
    By SecondGen in forum NETA Level 4 Exam
    Replies: 0
    Last Post: June 1, 2015, 06:03 PM
  4. NETA Level 2 Category List, Spring 2000
    By SecondGen in forum NETA Level 2 Exam
    Replies: 0
    Last Post: June 1, 2015, 05:12 PM

Tags for this Thread

Follow us


Explore TestGuy


NETA Certification Training


NICET Electrical Power Testing


Help and Support




You are viewing the archives. Enjoy new features and join the conversation at wiki.testguy.net