When using a self-contained recovery device on a cfc, hcfc, or hfc system with an operating compressor. Technicians must recover 80% of the nameplate charge.
Compressor is a mechanical device used in many industries which has the function of increasing gas pressure by reducing its volume. The air compressor is a specific type of gas compressor.
Compressors can be characterized in a number of different ways, but are usually divided into types based on the functional method used to produce compressed air or gas. The following are common compressor types. Types covered include:
- Pistons
- Diaphragm
- Helical Screw
- Slide propeller
- Scrolling
- Rotary Lobe
- Centrifugal
- Axial
How to use an air compressor
- Position the Air Compressor
- Check the Oil Level
- Check the Drain Valve
- Set the PSI
- Prepare the Air Tank
- Connect the Air Hose
- Connect the Desired Tool
- Remove Excess Moisture
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Answer:
The first HDD was created by IBM in 1956 and was the size of a refrigerator. The total storage capacity was 5 MB and only two heads were used to read the disks. The 1970s offered a hard disk drive in much smaller shells with the ability to store roughly 60 MB.
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<h2>The TCP/IP model consists of four layers: application, transport, internet, and network access. Of these four layers, it is the internet layer that is responsible for routing messages.</h2>
1. Less picture less distraction, but where to put pictures ? At the start of your presentation just to initially get the attention of the audience.
2. Use bullets for texts, never use paragraphs. Use short text or even words only which captures the subject of the presentation.
3. In conjunction with point 1. Use less animations as well. Especially for formal presentations
Additionally : Make sure to know your audience, for professionals, make the presentations short and precise. For much informal audiences you can be playful but always keep in mind not to overshadow the attention from the speaker.
