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B-SCAN PRESENTATION :-The B-scan presentation is a profile (cross - sectional) view of the test specimen. In the B - scan, the time - of - flight (travel time) of the sound energy is displayed along the vertical axis and the linear position of the transducer is displayed along the horizontal axis. From the B - scan, the depth of the reflector and it's approximate linear dimensions in the scan direction can be determined. The B - scan is typically produced by establishing a trigger gate on the A - scan. Whenever the signal intensity is great enough to trigger the gate, a point is produced on the B-scan. The gate is triggered by the sound reflecting from the Blackwall of the specimen and by smaller reflectors with in the material. In the B-scan image above, line A is produced as the transducer is scanned over the reduced thickness portion of the specimen. When the transducer moves to the right of this section, the Blackwall line BW is produced. When the transducer is over flaws B ...

Microsoft Excel is a computer program developed by Microsoft Corporation for creating and manipulating spreadsheets. It is a part of the Microsoft Office suite of productivity software, and is widely used in business, financial analysis, science and engineering, and other fields that require data organization and analysis. Excel allows users to enter, edit, and format data in cells, create charts and graphs, and perform calculations using built-in formulas and functions. How can use this? To use Microsoft Excel, you will first need to have the software installed on your computer. Once you have installed Excel, you can follow these basic steps: Open Excel and create a new workbook or open an existing one. Enter your data into the cells of the worksheet. Format the data using font styles, colors, borders, and alignment tools. Calculate results by using pre-built functions or by creating your own formulas. Create charts and graphs to visualize your data. Save your workbook fre...

A computer is an electronic device that can process, store, retrieve, and transmit data. It can perform various tasks and instructions based on the software installed in it. The computer consists of hardware components like the central processing unit (CPU), memory, hard drive, monitor, keyboard, and mouse and software components like operating system, applications, and programs. The computer has revolutionized the way we work, learn, communicate, and entertain ourselves, making our lives more convenient and productive. The basic parts without which a computer cannot work are. 1)   Central Processing Unit (CPU): It is the brain of the computer that performs all the calculations and instructions 2)   Random Access Memory (RAM): It is a temporary memory that stores the data and instructions for the CPU to access quickly. 3)  Storage: It is a device that stores data permanently, such as a hard drive or solid-state drive. 4)  Motherboard: It is the main ...