The closest metric wrench size to a standard 3/4 inch wrench is:
A. 15 mm
B. 18 mm
C. 19 mm
D. 21 mm
Answer: C
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A) TP B) ECT C) MAP D) RPM
Refrigerant oil flow through the liquid line is not a problem because:
A) The liquid line is always piped downhill. B) There is no oil present in the liquid line. C) The oil and refrigerant do not mix, so the refrigerant does not interfere with oil flow. D) The oil mixes with the liquid refrigerant.
What danger is there to using a circuit breaker that is too large for a circuit?
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Slate roofing is fastened to the sheathing with _____
A) metal stripping laid across the top of each course B) roofing cement applied to each tile C) two nails driven through predrilled holes in each tile D) four nails driven through predrilled holes in each tile