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Shurafa

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Vendor Warning

Exam Preparation Package for ISO 18436-2 Certified Vibration Analyst Category I

 

Part 1 (Principles of Vibration) and Part 2 (Data Acquisition) are now available to order through Amazon.

 https://www.amazon.com/Ali-M.-Al-Shurafa/e/B07H7V31X6/ref=sr_ntt_srch_lnk_1?qid=1540647094&sr=8-1

This prep series is designed for vibration analysis practitioners to prepare them for and help them pass the ISO vibration analysis certification. For years, analysts have been asking for practice questions to review their training materials, check and strengthen their understanding before the exam. Now, Cat I Prep I series provides hundreds of practice questions to fill this gap and the fulfill the need in the field of machinery vibration analysis. 

 

The package (8 parts) covers all topics specified in the Body of Knowledge of ISO 18436-2. The package meets and exceeds the requirements of the standard to ensure your readiness for the exam. Regardless of your certification provider and its location (USA, Australia, UK or Asia), you will find amazing help from this package.

Regards- Ali M. Al-Shurafa

Shurafa

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Hello.

Part 3: "Signal Processing" is now available through Amazon.

This book contains more than 130 questions suitable for Cat I (and Cat II).

For more details, click here Signal Processing

Regards- Ali M. Al-Shurafa  





Shurafa

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Reply with quote  #3 

Sample question of Part 3 (Signal Processing) is attached.

Regards- Ali M. Al-Shurafa

 
Attached Files
pdf ISO Certified Vibration Analyst Cat I Part 3.pdf (711.07 KB, 105 views)

Walt Strong

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Reply with quote  #4 
Ali,

If the question is intended to ask what spectrum has the highest and lowest Frequency Resolution (F-max/#Lines), then the answer would be different than asking what spectrum has the highest and lowest Lines of Resolution. That's the way I have defined it for 50-years when the first real-time analyzers were introduced to the commercial market; that predated the introduction of the FFT analyzers!

Walt
Shurafa

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Reply with quote  #5 
Walt,

This question asks for the count of the lines, not the resolution. In fact, the next questions (in the book) ask about the resolution.

This question is preparatory for finding the resolution. It is intended to emphasize that the lines can be high or low regardless of the x- and y-axis scales (Fmax and Amplitude which are different in the plots).

Do you think this question could be confusing for beginners?

Thanks a lot for your comment.

Regards- Ali M. Al-Shurafa
Walt Strong

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Reply with quote  #6 
Taking that question out of context might be confusing to some. I obviously know the difference, but I could have picked the wrong answer.

Search: lines of resolution
https://www.bing.com/search?q=lines+of+resolution+vibration&form=EDGEAR&qs=AS&cvid=50cc2bd6262a476694ed96f98f2fc4b4&cc=US&setlang=en-US&elv=AY3%21uAY7tbNNZGZ2yiGNjfOSuQaRxtCwrs20bkRxfpKKdDX8CnBVXVNaNzGhhlzOgZHAKut%21y*XfcoJ9wjM6Hg7z4BNKivW05CXQi5w3TSeV

I guess I prefer Spectral Lines instead of Lines of Resolution. You can see that most of the discussions/definitions seem to quickly convert to frequency resolution, as I previously mentioned. 

I applaud your effort to develop training materials and test questions. It is not easy!

Walt
Shurafa

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Reply with quote  #7 
For those who are interested, more details on (Part 1: Principles of Vibration) are in the attached pdf file.

Regards-Ali M. Al-Shurafa

 
Attached Files
pdf Vibration Analysis Certification Exam Certified Analyst Category I Pri.pdf (542.76 KB, 31 views)

Shurafa

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Reply with quote  #8 
Quote:
Originally Posted by Walt Strong


I guess I prefer Spectral Lines instead of Lines of Resolution.

Walt


Sorry for the late reply. I like your comment indeed and I will consider it in my wiring.


Regards-Ali M. Al-Shurafa
Vibe-Rater

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Reply with quote  #9 
Quote:
Originally Posted by Shurafa
For those who are interested, more details on (Part 1: Principles of Vibration) are in the attached pdf file.

Regards-Ali M. Al-Shurafa


Hi Shurafa, I joined this conversation really late. You are writing your own training material? Why not just go Mobius? it would take 50 lifetimes to even come close to replicating Mobius material. And no I do not receive anything in return for my suggestion. I do know Jason personally (I live in Melbourne where he is based - ok then Merricks North) but do not gain apart from the fact he is a great industry friend to have. You can't really get better than Mobius training.  I don't know you personally so I don't know your available resources or [personal commiutment but Mobius has been in the making a LONG time and the stuff Jason has done.  Well. you know if you can buy a perfect wheel then it is cheaper to do that.
Shurafa

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Vibe-Rater,

Very glad that you give suggestions, indeed.

Your post has so many interesting points and they would be a chance for me to explain more and also to hear more.

Mobius materials are great. I first bought and recommended Mobius materials maybe 15 years ago. I admire Mr. Jason's personal involvement in the development of new materials and updating the existing. I also like the materials provided by other training and certifying agencies.

My work is not created to compete or replace the training/certification materials. It is primarily to complement what the candidates have and nurture their learning experience. Cat I Perp I Series embraces the knowledge specified in the certification standard and helps the candidate to prepare better for the exam. The books do not cover theories or explain concepts; they are question banks simulating the actual exams but in an educational approach. So, you learn/review the BoK by practicing exam questions.

Do the classic training materials identify the gaps in the candidate's knowledge or their misunderstanding? Maybe. Maybe recognizing these shortfalls is too late (after taking a real certification exam). Candidates who self-study for the exam or have difficulties in taking exams are ideal readers but others will benefit a lot also. The books I wrote, I hope, fill this gap to a great extent. Do you think there is a genuine need to fill this gap? I strongly believe so. 

I have to say, however, this work is a purely personal project with limited resources. It is not an easy challenge at all but the progress and reactions received so far are very encouraging. Thanks for the support I have received from the many reviewers and readers.

I hope I'm not lecturing or overly promoting the books. Anyways, please let me know your thoughts on this. I'm open.


Regards-Ali M. Al-Shurafa
hidenseeky

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Reply with quote  #11 
Crah,

Recently bought Volume I and thought it was a very well put-together training aid. Being a recent inductee into the Vibration Analysis and Predictive Maintenance world I have two major observations:

1. I have no idea what I am doing.
2. The subject(s) of PdM and Vibration are both wider in scope and broader in internationality than I would have believed.

Neatly addressing both points was my purchase of the book, which for about $12 U.S. I felt was a reasonable investment.

Yes I have found similar materials on-line for free, and yes I have accessed a lot of Mobius material but I honestly prefer having a physical workbook to read rather than website or video to watch. (Maybe it's the lack of Australian accent that is so appealing.)

In any case, I appreciate the fact that there are those willing to pass on the knowledge they have accrued over their careers, because I certainly need it.

__________________
Nothing Is Constant
Vibe-Rater

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Reply with quote  #12 
All is good and well.  I'm just sayin. 
Vibe-Rater

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Reply with quote  #13 
Hi Hidenseeky,

Your comments are humble which will see you go a really long way in this field.  I am I guess I would call early 50's approaching mid and do like the odd book or 2. I have a few boxes of those. Den Hartog comes to mind and I also spent A LOT of money on Don Bently's book. And a few others as well.  I did keep reference books from my university days and stupidly thinking I might gift them to an interested party.  But then there was google. And all those thermodynamics equations are now widely available. And fluid dynamics and controls and... maths books. So I am down to only the vibration related books. eBay is a wonderful thing but I pretty much have all of those of significant interest now. 
Shurafa2

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Reply with quote  #14 

More details and a sample question for Part 2 are in the attachment. Part 2 contains 152 questions.

Vibration Analysis Certification Exam Preparation Package Certified Vibration Analyst Category I: Data Acquisition. 

To order: Amazon

 

Regards- Ali M. Al-Shurafa

 
Attached Files
pdf Vibration Analysis Certification Exam Certified Analyst Category I Dat.pdf (537.35 KB, 21 views)

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