A PLC programming language that controls the process or machine with embedded elements of all the other programming languages is ________
A) Structured Text B) Function Block Diagram (FBD)
C) Sequential Function Chart (SFC) D) Ladder Logic (LD)
C
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What is the oldest type of connector, and what are its limitations?
What will be an ideal response?
Define the following terms:
a. Pilot b. Stack c. Burner d. Firebox e. Induced draft furnace f. Natural draft furnace g. Air register h. Vertical furnace i. Shock bank j. Radiant tube k. Cabin furnace l. Radiant section m. Refractory lining
The degradation of irrigated soils across the once very productive "Fertile Crescent" of the Middle East was due primarily to:
A) destructive wars in the region. B) high calcium and magnesium levels in the irrigation waters. C) inadequate equipment and power to properly cultivate the soil. D) poor internal drainage of the soils. E) high levels of calcium-containing salt in the irrigation water.
The two-valve manifold has three hoses and two valves. The gauge is divided into two sides, the low side and the high side. The low side is comprised of the low side valve, the low side gauge and the low side hose, all of which are color-coded __________. The high side is comprised of the high side valve, the high side gauge and the high side hose, all of which are color-coded __________.
What will be an ideal response?