Answer:
B. Immediately close the valve in the service line and charge the system
Explanation:
The precaution should be taken prior to recovering refrigerant from a chiller are:
1) Immediately disconnect the recycling or recovery equipment and open the system for service.
2) Wait for at least a few minutes to see if the system pressure rises, indicating that there is still refrigerant in liquid form or in the oil.
3) Immediately break the vacuum with nitrogen and open the system for service.
Answer: the icon that shows a sheet of paper and a magnifying glass
Explanation:
The Quick Access Toolbar, gives access to the features that are usually used like Save, Undo/Redo. It can also be customized such that the commands that the users usually use can be placed quicker and therefore makes them easier to use.
After Sally adds the Print Preview and Print command to the Quick Access Toolbar, the icon that she would have added is the icon that shows a sheet of paper and a magnifying glass.
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