Susan Brown

[Susan Brown]

Okay – we fixed the code. Thanks again!

[Susan Brown]

Hi Vukomir,
Thanks for the heads up! Something changes with the coding on those videos. I’ll get my IT guy to fix them right away. Please check back soon.

[Susan Brown]

Hi Brad,

You did calculations like that on the Midterm exam. Specifically, questions 4 and 6.

See also Basic Electricity, Unit 3 (the last video) and Unit 8.

[Susan Brown]

From the unit:

Gate stations serve three purposes. First, they reduce the pressure in the line from transmission levels (200 to 1,500 psi) to distribution levels, which range from ¼ psi to 200 psi. Then an odorant, the distinctive rotten eggs smell associated with natural gas, is added, so that consumers can smell even small quantities of gas. Finally, the gate station measures the flow rate of the gas to determine the amount being received by the utility.

Note – the other question you missed, #6 – you have to do a conversion to figure out which answer choice is correct.

[Susan Brown]

Hi Shamshon – please check your email – I’ll reply to you there.

[Susan Brown]

Hi Tyler,

If you are required to earn Certification for the course, then you’ve got several scores that are below the required mark, starting back in Module 2, unit 8.

As for answers that you think are correct but we are saying they are not, you will have to give me specific examples. I glanced at some of the ones you missed and they are in fact incorrect.

Also – be careful getting help from other people. We’ve seen lots of people teach this material incorrectly. Why not get help from us? We’ve trained thousands of techs, so we should be able to help you, too.

Before I reset you, let me know which questions you think are not being graded correctly, and if you are required to earn Certification.

[Susan Brown]

Hi Kevin,

We don’t hear this kind of thing often, but I think there are occasional internet/connectivity glitches that can mess with the timed tests somehow. It’s not a function of the programming, but of internet weirdness.

No worries – I’ll grade your attempt shortly and you can always retake it if need be. I’ll email you with feedback.

As for comparing diagrams and schematics – you will get better with practice. It does take some time, but it’s super helpful to be able to see things from an electron’s perspective (the schematic diagram) than from just the wiring diagram. Stick with it!

[Susan Brown]

We always appreciate suggestions!

[Susan Brown]

That seems more complicated to me – I prefer one calculation – but it does work out mathematically.

[Susan Brown]

Hi Tyler,

I just looked over your quiz for that unit (it’s Unit 3 that I assume you’re talking about, since your quiz score is low).

Many of the questions you missed are on definitions or descriptions that we gave in those first 3 units of the course. For example, the answer to Question 1 is found in one of the definitions in Unit 1.

When you went through each unit, did you:
1. Print out and fill out the Study Sheets?
2. Take extra notes?
3. Rewatch any videos, or sections of videos?

These items are generally necessary when you are learning this type of material for the first time.

Please let me know of some specific items that you are unable to figure out by going back over the first 3 units of Basic electricity and I’ll help you further.

[Susan Brown]

Hi Carl,

One correction and one comment.

First of all, when we’re talking about parallel loads/circuits, we use the term “equivalent” resistance. Total resistance is when we add together loads that are in series.

That being said, your equation is fine as long as you only have 2 loads. If you had 3 or more, it wouldn’t work and you’d have to use ours.

Your equation is just a mathematical rearrangement of 1/[1/R1 + 1/R2], FYI.

Cheers!

[Susan Brown]

Hi Jim,

#4/#5: in the problem statement, it says, “After verifying that the washer is plugged in to a good power supply, you see that the line cord is connected to a square box component.”

So, we’ve verified that the component (which is a noise filter) has input. The next step is to check its output.

(Did you see the Explanation that shows up in the quiz results?)

#10:
From Mod. 5 unit 3:

1. Triacs are used to control AC power supplies

2. You can think of them as solid state relays

3. Triacs are current controlled devices. This means that you need electrons bustin’ down the Gate to turn it on AND you need load current flowing through them in order to stay on.

So, they need AC supply as well as the DC gate voltage, and their output is AC.

#17:

Yes, the centrifugal switch is at the motor (picture of a typical one at the link below). The schematic shows you that there is a direct wire from the switch to the element, so it makes for a great wire to disconnect for half-splitting. That’s the beauty of schematics!

https://appliantology.org/gallery/image/332-dryer-motor-centrifugal-switch/

Let me know if you have any other questions.

[Susan Brown]

Hi Travis,

From Unit 1:

Voltage: The amount of potential difference between two points in an electrical circuit, and the driving force behind actual current (flow). Voltage is also referred to as “potential energy” or “Electromotive Force” (EMF), the force that causes electrons to move from negative to positive. Measured in “volts,” and usually referred to by “V” or “E” in equations.

[Susan Brown]

Did you receive my email with feedback and a link to our Midterm Help Page?

Please read through those and then come back with any followup questions.

Enlightenment is near!

[Susan Brown]

Hi AJ – a couple of clarifications for you:

1. The criteria for certification are 80% or higher on unit quizzes; 90% or higher on exams (module, midterm, final)

2. Please use the Quiz and Exam Reset Request form (it’s in the Campus Support menu) if you should need a reset in the future. Thanks!

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