Valves that open and close rapidly under the control of electronic circuits are:

A) Pulse-modulated valves. B) Cross-charged expansion valves.
C) Electronic expansion valves. D) Step motor valves.


A

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Connection diagrams should be used to _____.

a. indicate the paths, interconnections, and component parts of an electric circuit b. show the wiring of instrument and electrical control devices in an elementary ladder or schematic form c. show the actual wiring connections between unit assemblies or equipment d. show the internal wiring connections between the parts that make up an apparatus

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The term ____________________ refers to the eating quality of meat and the degree of yield expected from a carcass.

Fill in the blank(s) with the appropriate word(s).

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If an interference angle is machined on a valve or seat, the angle is usually ________

A) 1 degree B) 1-3 degree C) 0.005 degree D) 0.5-0.75 degree

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To correctly represent a positive signed number in 2's-complement form:

A) represent the magnitude in its 2's-complement form and place a sign bit of "O" in front of the MSB. B) represent the magnitude in its 2's-complement form and place a sign bit of "1" in front of the MSB. C) represent the magnitude in its true binary form and place a sign bit of "O" in front of the MSB. D) represent the magnitude in its true binary form and place a sign bit of "1" in front of the MSB.

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