C.1. If power is being supplied to the circuit from Line 1, what's the first open-circuit condition encountered in Figure A7? A. F B. B C. A D. C
Protection System
A system that protects electrical systems from faults by isolating the problematic part from the remainder of the system, preventing power from being cut from healthy elements, improving system dependability and efficiency is the protection system. Protection devices are the equipment that are utilized to implement the protection system.
Predictive Maintenance System
Predictive maintenance technologies are designed to assist in determining the state of in-service equipment so that maintenance can be scheduled. Predictive maintenance is the application of information; proactive maintenance approaches examine the condition of equipment and anticipate when it should maintain. The purpose of predictive maintenance is to forecast when equipment will fail (depending on a variety of parameters), then prevent the failure through routine and corrective maintenance.Condition monitoring is the continual monitoring of machines during process conditions to maintain optimal machine use, which is necessary for predictive maintenance. There are three types of condition monitoring: online, periodic, and remote. Finally, remote condition monitoring allows the equipment observed from a small place and data supplied for analysis.
Preventive Maintenance System
To maintain the equipment and materials on a regular basis in order to maintain those running conditions and reduce unnecessary shutdowns due to unexpected equipment failure is called Preventive Maintenance (PM).
Figure A7
C.1. If power is being supplied to the circuit from Line 1, what's the first open-circuit condition encountered
in Figure A7?
A. F
B. B
C. A
D. C
C.2- How many normally open auxiliary relay contacts are shown in the schematic diagram in Figure A7?
A. 2
B. 3
C. 1
D. 0
Figure A7
C.3. What type of diagram is shown in Figure A7?
A. Three-line schematic diagram
B. Block diagram
C. Wiring diagram
D. Single-line ladder diagram
![Below is the transcription and detailed explanation suitable for an educational website:
---
### Understanding Circuit Diagrams: Detailed Analysis
**Figure A7** depicts a simplified electrical circuit diagram. This diagram is used to understand the flow of electricity and the functionality of various components within a system when a particular action is taken.
**Detailed View of Figure A7:**
- The diagram includes several key elements:
- **Push Buttons (A, B, C):** These are manual switches that control the flow of current when pressed.
- **Auxiliary Contact (AUX. C1):** This component is linked to the coil C1 and changes state when the coil is energized.
- **Coil (C1):** When energized, this coil can change the state of its associated contacts.
- **Overload Contact (OC):** This is a protective component ensuring the circuit is opened in case of an overload.
- **Line Numbers (1 and 2):** These represent different points in the electrical system, showing the path of current.
**Question Analysis:**
**1. In Figure A7, what happens when push button C is pressed down?**
- **A.** B opens, the coil energizes, and a path is complete to 2.
- **B.** Nothing (Both C and E need to be pressed to close the circuit.)
- **C.** The coil (C1) energizes, the auxiliary contact (C1) closes, and a path is complete to 2.
- **D.** D closes, the auxiliary contact C1 closes, and the overload contact opens.
**Explanation:**
- Pressing push button **C** is an action that influences the components in the circuit. Understanding the effect of this action helps us comprehend how the circuit responds.
- **Option A** suggests that button B opening causes the coil to energize.
- **Option B** implies nothing happens because both buttons C and E need to be pressed.
- **Option C** means that pressing C energizes coil C1, closing the auxiliary contact and completing the path to point 2.
- **Option D** indicates that pressing D would close the auxiliary contact C1 and open the overload contact.
**Correct Answer:**
- **C.** When C is pressed, the coil (C1) energizes, the auxiliary contact (C1) closes, and a path is complete to 2.
### Visual Diagram](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe3f676c4-2e93-4f9d-adcc-0baa623829e8%2F5f747e53-e61c-4f11-81a8-604425a38f87%2F3joudfq_processed.jpeg&w=3840&q=75)
![](/static/compass_v2/shared-icons/check-mark.png)
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
![Introductory Circuit Analysis (13th Edition)](https://www.bartleby.com/isbn_cover_images/9780133923605/9780133923605_smallCoverImage.gif)
![Delmar's Standard Textbook Of Electricity](https://www.bartleby.com/isbn_cover_images/9781337900348/9781337900348_smallCoverImage.jpg)
![Programmable Logic Controllers](https://www.bartleby.com/isbn_cover_images/9780073373843/9780073373843_smallCoverImage.gif)
![Introductory Circuit Analysis (13th Edition)](https://www.bartleby.com/isbn_cover_images/9780133923605/9780133923605_smallCoverImage.gif)
![Delmar's Standard Textbook Of Electricity](https://www.bartleby.com/isbn_cover_images/9781337900348/9781337900348_smallCoverImage.jpg)
![Programmable Logic Controllers](https://www.bartleby.com/isbn_cover_images/9780073373843/9780073373843_smallCoverImage.gif)
![Fundamentals of Electric Circuits](https://www.bartleby.com/isbn_cover_images/9780078028229/9780078028229_smallCoverImage.gif)
![Electric Circuits. (11th Edition)](https://www.bartleby.com/isbn_cover_images/9780134746968/9780134746968_smallCoverImage.gif)
![Engineering Electromagnetics](https://www.bartleby.com/isbn_cover_images/9780078028151/9780078028151_smallCoverImage.gif)