Answer:
a. A only
Explanation:
When air, is in excess of allowable amounts, it can cause the system to operate at pressures that are higher than normal. This means that the recycled refrigerant is operating at high pressure. Thus Technician A is correct.
However, Technician B is incorrect because unlike reclaimed refrigerants where the process strip the refrigerant of impurities making it to meet the standards of a new refrigerant, the recycled refrigerant is not as pure as it's contaminants are only reduced.
Therefore, only technician A is correct.
QR codes make up the basic structure of a relational database with columns containing field data and rows containing record information.
Answer:
<em>The right order of steps you should take to repare the laptop is: D A C B</em>
<em>Explanation:</em>
<em>D. Ask yourself if the laptop is still under warranty: Because they will replace the board for you or give you a new machine.</em>
<em>A. Ask yourself if replacing the motherboard will cost more than purchasing a new laptop: since technology evolve every day, you might consider buying a new faster, better, advanced machine.</em>
<em>C. Find the service manual to show you how to replace the motherboard: the support assistence will guide you trhough the right way of replacing the board.</em>
<em>B. Find a replacement motherboard: choose the specific one or maybe try to find a better model, that can improve your computer performance.</em>
