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Many of those controls are not nearly as precise as we’d like them to be! They rely on customer interaction to optimize the settings.
Hi Carlos,
Please read this blog post as well as the comment by Son of Samurai underneath it which specifically mentions motors.
https://appliantology.org/blogs/entry/1059-why-amps-are-the-definitive-measurement-in-ac-circuits/
Does that answer your question?
First of all, of the three choices we give you, one of them is completely incorrect (the sealed system) and the other one less likely, given the scenario (evap fan).
When the freezer is set to its coldest setting, it will keep most of the cold air in the freezer. Depending on the model, this could make it difficult for enough cold air to be distributed to the fresh food compartment, no matter what setting you have there.
In a single evaporator refrigerator, there may be two settings, but with the freezer set to “coldest”, the refrigerator setting may not be able to override that enough to maintain below 40 temps.
It’s at least the first thing you’d want to try, before more intensive troubleshooting.
Make sense?
We figured out why Chrome didn’t like the way we had that audio clip set up and fixed it – will play now on Chrome!
March 24, 2020 at 9:56 am in reply to: Module 8 Unit 2 Variable Frequency Drive System Audio Problem #18807We figured out why Chrome didn’t like the way we had that audio clip set up and fixed it – will play now on Chrome!
Hi Rodney,
Which quiz are you talking about?
Great!
Check Amazon! We get a lot of our electrical testing stuff there.
March 23, 2020 at 9:18 am in reply to: Final Exam Question that I’m just struggling to wrap my head around it. #18797That’s exactly correct! Great job thinking that through.
March 23, 2020 at 9:16 am in reply to: Module 8 Unit 2 Variable Frequency Drive System Audio Problem #18796I’m glad you got it to work. Browsers are always changing, and we occasionally hear about random issues with a plug-in that we use. The solution is usually to try a different browser.
March 22, 2020 at 4:59 pm in reply to: Module 8 Unit 2 Variable Frequency Drive System Audio Problem #18787Hi Shawn,
It works for me. I had a student a month or two ago who had this problem, and tried a different browser and it played for him. What browser are you using?
Hi Shaya,
It is only on DC circuits that you have polarity (a positive and a negative side). If you are measuring voltage in a DC circuit, the result on your multimeter will let you know what the polarity is (if you get a negative sign, it means you’ve switched the probes).
In AC circuits it doesn’t matter where you put your probes. The current is rapidly switching back and forth, so there is no positive/negative side and the voltage reading will not indicate + or -.
Just make sure you’ve set your multimeter on the correct setting! (AC or DC voltage)
If a circuit has L1 and L2 as the two ends of its power supply, that is a 240vac circuit. That’s what we have shown every single time.
A 120vac circuit has line (usually L1) on one side and neutral on the other.
Hi Kellen,
Which question in particular gave you trouble? I see that you got them all correct on your second attempt.But, in general, we covered this type of material in Module 3, particularly in units 3 and 8.
Tell you what. If you can email me answers to the following questions, I won’t make you retake the whole exam.
Please email them to me (susan@mastersamuraitech.com) – don’t put them here.
Questions 24, 29, 58, and 61
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