Which of the following is an undesirable constituent of engine oil?
A. film strength
B. dispersants
C. oxidation inhibitors
D. ash
Answer: D
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? Identify and state the historical significance of the Ostend Manifesto.
What will be an ideal response?
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What happens to CFCs and HCFCs that are exposed to a flame?
What will be an ideal response?
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Why are the 90 percent condensing furnaces unique?
A) The flue gas affects the venting material at a greater-than-normal rate. B) The venting of this type of furnace is made of PVC and is easy to seal airtight. C) The flue gas is excessively hot and can cause fires if improperly used. D) The venting material is rare, as it is no longer manufactured due to defects.
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The unit of measurement of capacitance is called a(n)____.
A. ohm (W) B. farad (F) C. henry (H) D. volt (V)
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