The __________ wire of a two-wire sourcing sensor sources current to a load device.
A. blue
B. brown
Answer: A
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Before a program can be developed from a ladder diagram, it is first necessary to determine the number of ____.
A. differential amplifiers B. protection schemes C. input and output devices D. CPUs
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Describe the basic operation and components of a centrifugal pump.
What will be an ideal response?
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Name three reasons why centrifugal compressors are so widely used in the process industries.
What will be an ideal response?
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The process of moving the exhaust gases is called _____
A) waste removal? B) scavenging? C) cleaning? D) outflow
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