The MPN is the result of which of the following laboratory tests?
a. membrane filter
b. fermentation tube
c. biochemical oxygen demand
d. dissolved oxygen
e. turbidity
b
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If the compressor will not operate in the cooling mode, the best thing to do is _____.
a. immediately replace the compressor b. make sure the compressor is getting voltage c. see if the compressor runs in other modes d. check the refrigerant charge
The use of living organisms to remedy environmental problems is known as _____________
Fill in the blank(s) with correct word
When replacing a compressor clutch, what is the critical measurement?
A) High-pressure pressure B) Current draw C) Air gap D) Voltage drop
To make the strongest electromagnet you would:
a. make a loop of wire b. make several loops of wire and reverse the current flow c. make several loops of wire around an iron core d. make several loops of wire around a piece of plastic