Why is a back-flow preventer used in the greenhouse?
What will be an ideal response?
It is placed in the water line before the fertilizer injector to prevent
fertilizer from backing up into the water lines.
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The AHRI definition of standard air is:
A) .075 lb. /ft3 @ 70°F. B) .075 ft3 /lb. @ 70°F. C) .075 lb. /ft2 @ 80°F. D) 0.75 lb. /ft3 @ 75°F.
The sectional view is created by placing an imaginary cutting plane through the object as if you were to cut away the object and leave the area exposed.
Answer the following statement true (T) or false (F)
To control the weld puddle when depositing an E6010 electrode stringer bead, use what is known as a _____
a. short motion b. constant motion c. whipping motion d. jerky motion
Using the original bill, if there was a 15% increase in the price of the oil pump what would be the new cost of the parts?
Fill in the blank(s) with the appropriate word(s).