Susan Brown

[Susan Brown]

Good! Glad you figured it out.

• This reply was modified 1 year, 6 months ago by Susan Brown.

[Susan Brown]

Yes, the “hot ind lights” operate on L1-L2!

[Susan Brown]

The first part of your answer is correct (acting as returns for each other). The other correct answer is “Because L1 and L2 are 180 degrees out of phase with each other”

[Susan Brown]

You got those questions correct on the quiz – do you still need help?

[Susan Brown]

Question 7: see the slide starting at about 7:40 in the second video. The signal is sent TO the inverter board.

Question 9: see the Troubleshooting slide in the second video, starting around 11:45.

[Susan Brown]

Hi Cooper,

See the videos and text as shown below:

#2: First video, around 2:50-3:00. Also in the text above it, “Although they all look a little different, all motors work basically the same way: by having a magnetic field in the stator (the stationary part) push against another magnetic field in the rotor (the rotating part).”

#3: Do AC induction motors (also known as asynchronous single phase motors) have brushes? (they are shown in more detail at the beginning of the second video)

#8 and 17: first video, 9:00 – 10:30

#13: second video, from about 3:30 to 4:45

[Susan Brown]

I found it – it is actually in Unit 6.

Unfortunately, that is an older video and we don’t have the schematic for it (or even the model number so we could look it up). So we can’t answer your question definitively. There are no quiz questions related to that, however, and we’ve decided to remove the video from the unit.

• This reply was modified 1 year, 7 months ago by Susan Brown.

[Susan Brown]

Hi Ray – would you please clarify which Module and Unit you are talking about? Thanks!

[Susan Brown]

Hi Terrance – you got the answers correct on your recent attempt on that quiz – do they make sense to you, or do you still have a question about it?

[Susan Brown]

Hi Matt – we interacted via email about this – are you all set or do you still have questions?

[Susan Brown]

Hi Cooper,
Did you rewatch the final video in Unit 4, from 46:20 – 50:20. That’s where Samurai reviews when to use them and when not to, and what they look like. Then he goes through a troubleshooting scenario where I know he at least demonstrates jumping a switch.

If you think about the function of a switch – to complete a circuit (a closed switch is like a wire) – then you can see how a jumper just fills in for that function.

Similarly, a load needs power to do work. A cheater cord provides power directly to the load to help you troubleshoot – does the load work when you provide power with a cheater cord? If so, then you know the load is not faulty, and vice versa.

[Susan Brown]

Hi Andrea,

I just thought I would chime in to review a few basics, to see if this helps you.

Whether we are talking about an AC or a DC circuit, the following basic concepts of voltage and current are the same.

The presence of voltage gives us the *potential* for current to flow. If we have a complete (closed) circuit along with voltage, we will have current.

We cannot have current in one part of a circuit and not another. (You can have circuits in parallel with each other where one has current and another doesn’t, but that is not what we’re talking about here. We’re just talking about a single circuit.)

Measuring voltage at an outlet or across an open switch are both examples of measuring voltage potential. Measuring voltage across a working load (current going through it) is measuring voltage drop.

A live test just means that the machine is plugged in and we are turning it on. Voltage is being applied, but if there is an open somewhere, then no current will be flowing.

Does that help?

[Susan Brown]

Hi Brian,

I can do this for you now (although it is unit 3, not 2, that needs the reset). Also – Mod. 7, unit 4 is under 80%. You need to use your second attempt to improve that before you move on.

For future reference, please use the Quiz & Exam Reset Request form in the “Campus Support” menu when you need a reset. Thanks!

[Susan Brown]

if I had picked a temperature between 8F and 17F I would have been correct, instead of picking one outside of this range as I thought that what the question was asking?

Correct.

Every model of refrigerator out there has a particular temperature at which the ice maker will stop functioning. If you made a list of what those temperatures are for all the various models, you would see that they all will be somewhere in that range. But for any individual refrigerator, it is a single number. Does that make sense?

[Susan Brown]

Hi Ted – I can set you back to Unit 4. FYI, it will clear the two quizzes you took after that, so you’ll need to retake them. Make notes if you want to, then let me know when you’re ready for the reset.

FYI, for future reference, there is a Quiz & Exam Reset Request form in the Campus Support menu. That’s the best way to get a reset.

[Author]

Posts