Technician A says that if a PCV valve rattles, then it is okay and does not need to be replaced. Technician B says that if a PCV valve does not rattle, it should be replaced. Which technician is correct?

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


B

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In a sensor network, energy consumption is one of the major constraints. Keeping this in mind, what factors would one consider when designing a security scheme for such networks? Explain.

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You should signal continuously while turning because:

a. You need both hands on the wheel to turn safely. b. It is illegal to turn off your signal before completing the turn. c. Most vehicle have self-canceling signals.

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