Which one of the following statements on troubleshooting data handling instructions is NOT true?
A) Verify that pointers do not point outside the memory boundaries.
B) Use a large data set when troubleshooting data handling rungs to verify that data size is not a problem.
C) Use the single-step option to scan one rung at a time.
D) Use the temporary end (TND) instruction to stop scanning at points where addressing indexes and data transferred can be checked.
B
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Liquid lines need to be insulated:
A) They are run close enough to the hot suction line to pick up heat from it. B) If they travel through an unusually hot space. C) Always. D) For systems using HFC refrigerants.
In the United States between the 1970s and the 1990s, the level of heavy metals found in municipal sewage sludge ________
A) increased substantially B) decreased substantially C) stayed about the same
Technician A says that the lower the bin number is, the less emissions the vehicle produces. Technician B says that SULEV has cleaner standards than ULEV. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
What does a refrigeration system do with the heat in the refrigerated area?
A) It overcomes the heat with a counterbalancing quantity of cold. B) It moves the heat from the refrigerated area to another area. C) Nothing–refrigeration is about cold, not heat. D) It chemically absorbs the heat.