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Susan Brown

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Viewing 15 posts - 1,726 through 1,740 (of 1,889 total)
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  • in reply to: Minimum tool inventory cost estimate. #12995
    Susan Brown
    Keymaster

      Good question!

      Our estimate would be about $700-$1000.

      in reply to: Module 7 unit 2 RTDs PTCs NTCs #12983
      Susan Brown
      Keymaster

        Correct! Any more questions about this topic? If not, you can retake the quiz now.

        in reply to: Units of Electrical Measurements #12975
        Susan Brown
        Keymaster

          If we have 1, then we have a watt. If we have 1000 watts, we have a kilo-watt. If we have 0.001 watts (1 divided by 1000, or one-thousandth of a watt), we have a milliwatt.

          Correction: I accidentally wrote “microwatt” instead of “milliwatt” in my original reply. Sorry for any confusion!

          in reply to: Units of Electrical Measurements #12973
          Susan Brown
          Keymaster

            Okay, thanks!

            This question gives you the measurement of 4 megawatts and wants you to choose an equivalent value from the answers given. To find the correct answer requires that you play with the numbers some and push yourself to see how these conversions work.

            The table is set up with “unit” being the center row. This is referring to “1” of whatever unit you’re talking about. In our case, for this question, we’re using “watts” as the unit.

            If we have 1, then we have a watt. If we have 1000 watts, we have a kilo-watt. If we have 0.001 watts (1 divided by 1000, or one-thousandth of a watt), we have a milliwatt.

            And we can also take one amount, and convert the same quantity to a different term.

            For example, if someone said we have 10 kilowatts, how many watts would that be? (Let me know your answer)

            in reply to: Units of Electrical Measurements #12971
            Susan Brown
            Keymaster

              Hi Steve,

              Happy to help, but you left off the Unit and question number from your topic. I’m not sure what you are referring to.

              in reply to: Module 7 unit 2 RTDs PTCs NTCs #12969
              Susan Brown
              Keymaster

                Hi Shannon,

                One last question:
                Are PTC thermistors used for temperature measurement or reaction?

                in reply to: Capacitor video .. #12951
                Susan Brown
                Keymaster

                  Hi Boyd,

                  Happy to help, but I’d like to get a little more specific a question from you. Please do re-watch the video, and then let me know what you need more info on.

                  in reply to: Module 7 unit 2 RTDs PTCs NTCs #12929
                  Susan Brown
                  Keymaster

                    Hi Shannon,

                    This information is presented in the video presentation at the end of this unit. It’s a long presentation, which is why we encourage students to pause and make notes.

                    The other trick is, assuming you’ve watched it all the way through at least once, when you need to review (to study for the quiz, for example), you can move forward in the video a little bit at a time and look for the slide that discusses what you are trying to review, and then re-listen to that bit.

                    A few questions or assignments to help make sure you get this material.

                    1. Do you understand what we mean when we say that sensors either are used for measurement or reaction? What would be an example of each of those?

                    2. For RTD’s: scrub forward in the video until you see the slide on RTDs, and rewatch for a few minutes to review where they are used.

                    3. To understand PTC thermistors, rewatch that section (about 45 minutes into the presentation), then let me know what PTC thermistors are used for and why.

                    Or – if you still have lingering questions after watching those bits, let me know!

                    in reply to: Reset to Module 7 unit 2 #12927
                    Susan Brown
                    Keymaster

                      Hi Shannon,

                      We do want students who need a reset on a quiz to post a topic in the Forums, but not just to request the reset. We want you to post a topic about what you missed after two attempts, so we can help you figure it out.

                      Please post a topic in the Appliance Parts forum about the material that you had trouble with on the quiz, and we’ll be glad to work with you to make sure you understand it. Then we can reset the quiz for you.

                      in reply to: Basic Electronics #12925
                      Susan Brown
                      Keymaster

                        Yep, voltage drives current.

                        Thank you as you can tell not much electronic experience yet.

                        That’s okay! That’s the case with a lot of our students. Just take your time and be sure to ask questions here in the Forum if you need additional info or clarification as you go along. We are more than happy to help.

                        in reply to: definition for infinity #12911
                        Susan Brown
                        Keymaster

                          OL means “over limit”. When you see that, it means that the resistance reading is higher than the upper limit of your meter, so for all intents and purposes is “infinite” resistance (open) as far as the circuit is concerned.

                          Make sense?

                          Thanks for asking – elementary questions are great!

                          in reply to: Midterm exam question # 2 #12863
                          Susan Brown
                          Keymaster

                            Yes – total resistance in a series circuit is simply the sum of the resistances of the loads.

                            in reply to: module 2 unit 2 #12647
                            Susan Brown
                            Keymaster

                              Hi Raymond,

                              No problem – just reset you. By the way, please use the Contact form (“contact” in main menu) if you need to ask for something like this again. It’s a little better way to request a reset.

                              Thanks!
                              Susan

                              in reply to: 1.3 Fundamentals -Basic Electricity module 4 lesson 7 #12417
                              Susan Brown
                              Keymaster

                                Sure, just let me know. And by the way, you can shoot us an email with requests like this from the Contact page (in the main menu).

                                in reply to: modue 6 unit 8 #12408
                                Susan Brown
                                Keymaster

                                  Hi Michael,

                                  It’s good practice – this is what you’ll often face when looking at a manual for a job!

                                  In this case, there is a table of contents a few pages in. I just opened it myself and used the TOC to find the section where I thought the technical info that you mentioned would be, skipped ahead to those pages, and found what you are looking for.

                                  See if you can do the same!

                                Viewing 15 posts - 1,726 through 1,740 (of 1,889 total)