The science of computer control systems that send messages to the vehicle systems that they control, and report the degree of functioning to the driver, is called _____.
Fill in the blank(s) with the appropriate word(s).
cybernetics
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In Figure 17-8, explain why Pi-300B is reading 19 psig.
What will be an ideal response?
Which of the following statements concerning applications or capabilities of soil moisture measuring devices is (are) true for the electrical resistance block?
A) would give the same reading for both a loamy sand and a silt loam if both contained 15% moisture B) used to turn on irrigation when soil moisture potential reaches -200 kPa C) good to turn on automatic irrigation at -50 kPa D) requires "destructive sampling" for each measurement E) both A and D
Quite often, technicians rely on their gauge manifolds to determine if a sufficient vacuum has been achieved. This __________ acceptable field practice.
A. is B. is not
The two-in/two-out regulation came from the federal agency called the:
A. Environmental Protection Association. B. Department of Transportation. C. Occupational Safety and Health Administration. D. United States Fire Administration.