When pressurizing a system for leak testing, the only refrigerant that can be used as a trace gas is _____
a. HFC-410A
b. HFC-134a
c. HFC-407C
d. HCFC-22
d
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If you multiply 2.356 times 4.567, after multiplying ignoring the decimal point, you would place the decimal in the answer 7 places from the right.
Answer the following statement true (T) or false (F)
________: as disposable income of a consumer increases, the percentage of income spent for food decreases if all other things remain constant.
Fill in the blank(s) with the appropriate word(s).
A M10 × 1.5 metric thread would have a thread diameter of 1.5 mm
Indicate whether the statement is true or false
Technician A says that most corrosion deterioration on engine metals is related to acids in broken down engine lube. Technician B says that most corrosion wear on engine components is either directly or indirectly related to oxidation. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B