Susan Brown

Forum Replies Created

Viewing 15 posts - 196 through 210 (of 1,987 total)
  • Author
    Posts
  • in reply to: current and resistance #25831
    Susan Brown
    Keymaster

      One example I thought of where this could happen is based on Question 8 on the Midterm Exam in the Core course where the Main Coil was shunted by the closed detector switch, leaving the Ignitor and Booster in independent, parallel circuits (*each* having 120v drop). When that switch opens, it becomes a series-parallel circuit, where all 3 loads will now share the 120v drop.

      So any scenario where a load is either bypassed or brought back into series by a shunt will affect current and voltage to loads.

      in reply to: Module 6 unit 5 question 6 ,7 #25827
      Susan Brown
      Keymaster

        “k” stands for “kilo”, which is 1000 of something. (For example, a kilometer is 1000 meters). So 5k-ohms is 5000 ohms.

        See Mod. 4, unit 7, near the end of the unit for a table of units like this.

        in reply to: Certificate #25822
        Susan Brown
        Keymaster

          Hi Ronald,
          I have not heard of this. But I know we have a number of techs from TX at Appliantology – I suggest you post this in the Dojo and see what you can find out.

          A lot of these types of licenses have more to do with knowing Code or other regulations, rather than actually understanding technology and troubleshooting, in which case the info you need is likely in that book.

          Can you send me more info on this test? (A link?)

          in reply to: Module 1 Unit 11 Quiz Question 4 #25814
          Susan Brown
          Keymaster

            The answer we are looking for is “It’s a PTC start device”. Essentially no one uses true relays anymore in this application, so it’s safe to just assume “PTC”.

            in reply to: Circuit Components and Series Components #25813
            Susan Brown
            Keymaster

              Those are correct. Good job!

              in reply to: Question 8 Midterm Exam #25804
              Susan Brown
              Keymaster

                I just replied to your email, Jonathan.

                Susan Brown
                Keymaster

                  Always check the schematic. Some include a very clear chart of which color is what. Some you have to figure out by using your own savvy. They don’t all stick to the usual black/white convention, unfortunately. We’d have to see the diagram to know what the white wire you saw was.

                  in reply to: Mod 2 Unit 2 #25797
                  Susan Brown
                  Keymaster

                    Hi Raja,
                    First of all, note that the question asks for the two most likely causes.

                    Of the three that you gave, the one that is not correct is “A broken agitator”

                    Here’s what we said in the lesson:

                    “If the motor is running, but the machine is not agitating, then you are most likely facing one of two issues, depending on the method your model uses to drive the agitator. On belt-drive models, a worn or broken drive belt causes this issue. Alternatively, on direct-drive models where the motor directly drives the transmission, the most likely cause is a broken drive coupler. This is a small plastic component that connects the drive motor to the transmission.”

                    The agitator is just that plastic center post with the fins. It is the items that cause it to move (belt or coupler) that usually are the cause of the issue.

                    Does that make sense?

                    in reply to: Midterm exam #25793
                    Susan Brown
                    Keymaster

                      Tahj – are you getting the Midterm feedback emails I’ve been sending?

                      in reply to: Midterm exam #25790
                      Susan Brown
                      Keymaster

                        Hi Tahj,
                        It’s easier if you start a new topic for each particular question. Or – if you just want to run a new answer by me, you can use email.

                        in reply to: Final Exam – Part 1_Retake Quiz #25780
                        Susan Brown
                        Keymaster

                          See the email I just sent you.

                          in reply to: Mod 8 unit 1 #25778
                          Susan Brown
                          Keymaster

                            This question is designed to get you to think through the terminology. The fact that it is a “live circuit” means that voltage is applied, but does not necessarily indicate that current is flowing. An “NO” switch being “in its normal state” means that it is open. So, we are measuring across an open switch and would expect to measure the source voltage.

                            in reply to: module 4 unit 9 video 4 #25776
                            Susan Brown
                            Keymaster

                              Do you remember what we taught you about current in a series circuit?

                              It is the same at any point in the circuit. The electrons are all moving or none of them are moving. And if they are moving, they move at the same rate. This is where it is NOT helpful to think of water flow. Better to think of a tightly packed toy train track loop with no gaps between the train cars. If you push one they all move at the same rate.

                              So you can measure anywhere on the circuit, from wherever you can get the clamp around the wire.

                              in reply to: Final Exam – Part 1_Load Question #25775
                              Susan Brown
                              Keymaster

                                *Power*, which is current AND voltage. The bottom line with loads is power, but since we don’t measure watts, we use amps and/or voltage drop as proxy measurements.

                                in reply to: Module 9, Unit 2, Last image with audio #25763
                                Susan Brown
                                Keymaster

                                  Hi John,
                                  It opens as a pop-up – I wonder if you have a popup blocker?

                                  Click here for the image. Does it open?

                                  I’ll embed it here, if that helps

                                  • This reply was modified 1 year, 2 months ago by Susan Brown.
                                  • This reply was modified 1 year, 2 months ago by Susan Brown.
                                Viewing 15 posts - 196 through 210 (of 1,987 total)