If you've been sent to this page then that means that you missed some questions on the midterm exam and we want to give you some help on how to figure out the correct answers!
Don’t feel bad - plenty of students get sent to this page 🙂
Why the midterm is so important
Answering open-answer questions is much harder than the multiple choice or true/false ones, but at this point in the course you need to be challenged to apply what you’ve been learning. After all, every service call you go on is an open-answer question!
Putting in the work now to figure out the answers to these questions will pay off BIG TIME down the road.
You can see your exam results by going to the Fundamentals midterm unit.
If you missed something, we STRONGLY urge you to take the time to figure out the answer by using the helps below.
If you scored less than 90% and you want to receive an MST certification upon completion of the course, then you will need to study, get help, then retake the exam. Note that you get two attempts to achieve 90%. If you don't pass the second time, and you want certification, then we will reset you to the beginning of Basic Electricity. Repeating the Basic Electricity module really helps a lot of students nail down these concepts.
The table below shows what you should review in Module 3 (Basic Electricity) to help you figure out the correct answers for each question.
It's important to realize that many of the videos in the Units are similar to the exam questions, but not exactly the same, so you have to pay attention to the details! (A necessary aspect of being a tech!)
After reviewing the information below for the questions you missed, come to Office Hours or ask questions in the Student Forums for further help!
Helpful Videos for Each Midterm Question:
|
Question |
Unit(s) |
Video Title(s) |
|
All |
4 |
Electric Circuit Configurations (both videos); these are helpful for all of the questions |
|
1 |
5 |
Series and Parallel Circuits |
|
2 |
5 |
Series and Parallel Circuits |
|
3 |
3,5 |
Introduction to Ohm’s Law; Series and Parallel Circuits |
|
4 |
3, 8 |
Introduction to Ohm’s Law; Voltage Drop |
|
5 |
5 |
Equivalent Resistance |
|
6 |
3 |
Loose Electrical Connections and Heat |
|
7 |
5, 8 |
Series and Parallel Circuits; Voltage Drop |
|
8 |
5, 8 |
Series and Parallel Circuits; Equivalent Resistance, Shorts, and Shunts; Voltage Drop |
|
9 |
6 |
L1, L2, and Neutral in 240 VAC Appliances |
Additional info on Question 8: this is the trickiest question for most techs, but it's a great exercise in looking at a slightly oddly-drawn diagram and determining how the circuits/loads are actually laid out. The key is determining if the loads are in parallel, series, or shunted, and then using what you know about voltage in the different types of circuits to determine voltage drop.
I recommend that people use the "zen trick" described in a video in unit 5 on each load. Also pay close attention to the fact that the detector switch is closed, and the effect that has on the circuit.