Search Results for 'midterm'

[Susan BrownKeymaster]

Did you also read the Help Page for the Midterm?

https://mrappliance.mastersamuraitech.com/midterm-exam-help-page/

If you did, and still need further help, then use the Forums. You can either browse through or search to try to find previous discussions of these exam questions, or just start your own topic. If you start your own, please just post about one question at a time.

[Susan BrownKeymaster]

I just took another look at your answer on the midterm, and I think you mis-numbered your answers. Here is the question:

Question #7: Here is a circuit showing the convection element and convection fan motor in an electric wall oven. The power supply is 120 VAC. If the diode were to fail open, what would be the effect on:
1. the convection element current (increase/decrease/no change)
2. the convection fan motor voltage drop (increase/decrease/no change)
3. the convection fan motor current (increase/decrease/no change)
4. Total current draw from L1 for all the parallel circuits shown in the schematic (increase/decrease/no change)

Are the answers you just gave above in line with the part of the circuit we’re asking about?

[Braxton Lefler]

Okay yes I was just confused for a second but I understand what is going on. I just had a question about #7 on the midterm, so the diode is in the top right? 1. Decrease 2. Decrease 3. No Change
4. No change? what am I missing here?

[Susan BrownKeymaster]

That’s the case with the example in the video in Unit 6. The Figures in the Midterm exam are slightly different, so take a closer look at those.

And what do you mean by “missing”? What’s the more technical word we usually use for that? (Hint: for a circuit to function properly it must be closed.)

[Susan BrownKeymaster]

In Question 8 of the midterm, we have a circuit that has 5 components:

Igniter
Booster
Main
Safety
Detector switch (closed)

The first 4 are loads, so they potentially have voltage drop across them if current is flowing through them. What that voltage drop is depends on if the particular load is in series or parallel with the other loads.

So, the first step is to decide which loads have current flowing through them.

I don’t quite understand what you were saying above about the switch. The fact that it is closed does have an affect on the circuit, and is what makes it possible to answer the question without needing to know the resistance of each load.

[Jonathan Morales]

FUNDAMENTALS MIDTERM

There is a service manual on Appliantoligy for a Miele G2470 dishwasher. I am at the midterm point in the fundamentals course and want to know if there is a way to get access to the document prior to completion of the course?

[Kevin Paris]

My question is the same as another on question 8 on the midterm. Relooking at since the switch is closed or shunting does that series circuit below loose current through it and has no voltage drop then?

[Sam BrownKeymaster]

Hey Justin,

I see that you submitted your answers for the midterm! Once we’ve finished grading it, we’ll get back to you via email with tips for this question and any others that you struggled with.

[Susan BrownKeymaster]

Isn’t this the Midterm question?

First of all, we show this calculation (but with slightly different numbers for the resistances) in the last video of Unit 3. That may answer your question.

Your first step above is correct – to calculate the circuit current using the total resistance.

However, look at the next step, where you calculated P using current and resistance. We asked for the heat generated by the loose connection only.

(Your next guess, using P = VxI will only work if you calculate and then use the voltage drop across the loose connection, not the source voltage.)

[Elijah Perdomo]

I still don’t understand what it is, the midterm study guide says I need to be able to define what it is. I can tell you how it works, but I’m still not sure what it is.

[Hector Rivera]

Hi
question 7 midterm exam
i am confuse in this question any advice please

[Susan BrownKeymaster]

Hi Peyton,

I’d like to help step you through this by going back and forth with a few questions.

One of the things to think about here is the difference between voltage (as in, “potential” voltage) and voltage drop.

Do you understand the difference between those terms?

When you are measuring across a load, such as an element, and get zero volts, do you know the significance of that?

P.S. to anyone else reading this: the video at the end of Mod. 3 Unit 6 is similar, but not identical, to a question on the midterm.

[Susan BrownKeymaster]

Hi Nick,

Glad that you are paying attention to your quiz results!

The only way you can take a quiz more than the built-in 2 attempts is if you get reset to an earlier point in the course. This usually only happens when a student hasn’t made the necessary scores for MST Certification on an exam (module, midterm, or final).

At this point your scores are great. The important thing is to look at any questions that you’ve missed and figure out the correct answer, either on your own by looking at the course material again, or by asking for help in the forums.

Let me know if you have any other questions!