All of the following are advantages of VVT systems except:

A. Increased performance
B. Increased emissions
C. Increased fuel economy
D. Allows us of smaller engine size


Answer: B

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PROBLEM 3.31

PROBLEM 3.31 While an oil well is being drilled at a depth of 2500m, it is observed that the top of the 200-mm-diameter steel drill pipe (G = 77.2 GPa) rotates through 2.5 revolutions before the drilling bit starts to operate. Determine the maximum shearing stress caused in the pipe by torsion.

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Technician A says that eye contamination should be treated by flushing with water. Technician B says that professional help should be involved in the event of eye contamination. Which technician is correct?

A) Technician A B) Technician B C) Both technicians D) Neither technician

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Answer the following statement(s) true (T) or false (F)

1. Adaptive design involves making major modifications to the existing design. T 2. Development design involves conceptual or embodiment variations of subsystems of an existing design. T 3. Design using modules that perform distinct functions and are easy to assemble are called modular designs. T 4. Modules in modular design, when assembled together in different combinations, form distinctly different products. T 5. A platform product is the basic product that can be built as a member of a product family. T

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What type of sensor is often used to by the PCM to determine SCR effectiveness?

A. Dosing sensor. B. Oxide sensor. C. Oxygen sensor. D. SCR outlet temperature sensor.

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