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# Am I missing something here? Is the right answer here? If so can someone explain?

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1. Junior Member
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Jun 2021
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## That's what I thought

I was trying it the way you described because that's what I had been taught. And like we have figured out it is not an answer choice. And yes it was from the pool of questions in my NETA 2 Practice Test. Unfortunately I think the question is ignoring the 4-20mA and treating it like a 0-20mA because of the answer choices available.

Originally Posted by Kalbi_Rob
I think ya'll have a slight conceptual misunderstanding of how transducers work. Transducer typically output range of 4mA to 20mA. That means 4mA equals the low range minimum, and 20mA is high range maximum. For a 0-150A CT, 4mA is equal to 0A and 20mA is equal to 150A.

So, I've always just made my range 0mA to 16mA, with my reading minus 4.

So, at 14mA, my calculation would be (10mA*150A)/16mA = 93.75, so my guess would be the answer of 90A due the possibility of inaccurate.

Not sure if this question is the best example to work off of, did you get this from the question bank? Might be one to bring up to the administrators.

To check my work I use calculators similar to this one:

https://www.sensorsone.com/4-20ma-to...&olo=0&ohi=150

2. Member
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Originally Posted by cnowak
I was trying it the way you described because that's what I had been taught. And like we have figured out it is not an answer choice. And yes it was from the pool of questions in my NETA 2 Practice Test. Unfortunately I think the question is ignoring the 4-20mA and treating it like a 0-20mA because of the answer choices available.

3. NETA Level III Pro Subscriber
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Sooo testguy says 105 is right, are we voting this one wrong?

4. Originally Posted by bec51392
Sooo testguy says 105 is right, are we voting this one wrong?
Thanks for reporting, this question will be updated. See answer explination by Kalbi_Rob: https://testguy.net/threads/8410-Am-...4735#post14735

5. NETA Level III Pro Subscriber
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I took my NETA 3 this week and this question ended up on my test! Thanks to you guys I think its fair to say I got it right. Thanks everyone!

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