A ____ is a one-way electrical check valve.

A. plenum
B. diode
C. byte
D. thermistor


Answer: B

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Many of the odor problems from confinement operations are related to the release of _____ from

manure.

a. carbon dioxide c. methane b. sulfur d. ammonia

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Two technicians are discussing Section 609 of the Clean Air Act. Technician A says that it requires that A/C technicians be properly trained and certified. Technician B says Section 609 requires that recovery and recycling equipment be of an approved

type. Who is correct? A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

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Which of the following is the elliptical region within which signals travel between two antennas in a point-to-point link?

A. troposphere radius B. propagation limit C. Fresnel zone D. wave pattern

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Low-carbon steel, or mild steel (MS), has a low level of carbon and is relatively soft and easy to work.

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

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