Answer:
Grid analysis is best used when a decision needs to consider multiple outcomes and different criteria. The format of this method however, can provide bias to a certain outcome. The process is only as good as the quality of information placed within the grid including the scoring. Once a factor is graded or placed subjectively, objectivity is compromised in this method. Also, this method keeps decision making strictly in a rational manner. But, it is considered unhealthy to be linear in decision making and one-sided. It is best to base decisions from a rational and take emotions into account as well.
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.
Yes you do have to program it first.
