What are some drawbacks of adding more antifreeze than needed to prevent freezing in the chilled water piping system?
What will be an ideal response?
It reduces the heat-transfer rate of the solution and requires larger pumps to circulate the solution through the piping.?
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Agricultural insecticide runoff is an example of a nonpoint source of water pollution
Indicate whether the statement is true or false.
Technician A says that the presence of oil around a fitting of an air-conditioning line may indicate an oil leak but not a refrigerant leak. Technician B says that using an electronic leak detector is the best way to find the source of a refrigerant leak. Who is correct?
A. Tech A B. Tech B C. Both D. Neither
Technician A says that rings should not be worn while working in the shop, but watches worn on the wrist are acceptable. Technician B says that long hair is safe only when it is tied back or secured under a hat. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
Encoders can store which key is pressed on a keypad
Indicate whether the statement is true or false