Emission controls on what model year vehicles require ultra-low sulfur diesel fuel?

A) 1996 B) 2007 and later C) 1992 D) None of these


B

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This steel alloy is a purifying element that adds strength for parts that must be shock and wear resistant.

a. tungsten b. chromium c. manganese d. molybdenum

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Which of the following statements is false?

A. While volume is an extensive property, molar volume is an intensive property. B. A closed system is one that allows for no energy transfer across a system boundary. C. All monatomic ideal gases have the same heat capacity in J/mol•K, but they have different values of CP* in kJ/kg•K. D. If the initial and final states of a system are identical, then ?U for the entire process is zero, regardless of what changes occurred during the process. E. The units L•bar, m3•Pa, J, Pa•L and N•m are all dimensionally equivalent and interconvertable.

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An ignition coil operates using the principle of ________

A) Electromagnetic induction B) Mutual induction C) Self-induction D) All of the above

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To check the quality of groundwater, many construction sites _____

a. test samples weekly b. dig monitoring wells c. set up a testing laboratory d. request EPA inspections

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