Technician A says the learned LTFT corrections are used as a new base line for STFT. Technician B says the STFT values are constantly adjusted by the PCM to correct for rich/lean running conditions. Who is correct?

A. A only
B. B only
C. both A and B
D. neither A nor B


Answer: C

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The issue that finally touched off the movement toward the Constitutional Convention was

A. government control of public lands. B. the struggle of control of commerce between states and the central government. C. Indian policy. D. monetary policy. E. foreign threats to our independence.

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Find a 98% confidence interval for the difference in pH between the northern and southern side.

In the article “Groundwater Electromagnetic Imaging in Complex Geological and Topographical Regions: A Case Study of a Tectonic Boundary in the French Alps” (S. Houtot, P. Tarits, et al., Geophysics, 2002:1048–1060), the pH was measured for several water samples in various locations near Gittaz Lake in the French Alps. The results for 11 locations on the northern side of the lake and for 6 locations on the southern side are as follows: Northern side: 8.1 8.2 8.1 8.2 8.2 7.4 7.3 7.4 8.1 8.1 7.9 Southern side: 7.8 8.2 7.9 7.9 8.1 8.1

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A large facility recycles its used motor oil. Technician A says that only about one quart of high-quality oil can be recovered from each gallon of used oil that is recycled. Technician B says the recovery is much higher-about two and one-half quarts per gallon. Who is right?

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Refer to Figure P2.49 and assume R0 = 2 ?, R1 = 1 ?, R2 = 4/3 ?, R3 = 6 ?, and VS = 12 V. Use KVL and Ohm’s law to find:



Known quantities:
Schematic of the circuit shown in Figure P2.55 with resistors R0 = 2 ?, R1 = 1 ?, R2 = 4/3 ?, R3 = 6 ?, and VS = 12 V. and voltage source Vs=12V.
a. The mesh currents ia , ib, and ic.
b. The current through each resistor.

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