Identify three of the four chemical processes that occur as food begins to ripen
What will be an ideal response?
As food begins to ripen four chemical reactions can occur:
1 . Starch converts to sugar.
2 . Organic acids begin to decrease.
3 . The pH levels of the fruit decrease.
4 . The fruit softens because the pectin in the fruit begins to break down.
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Strength of the seam-weld is in terms of the shear strength of the weld in ____ per linear inch.
A. grams B. forces C. pounds D. newtons
Assume the MARR is 10% per year for this analysis. A presently owned machine that was purchased 8 years ago for $450,000 is under consideration for replacement. It has an annual operating cost of $120,000 per year and a salvage value of $40,000 whenever it is replaced. The challenger has a first cost of $670,000, an expected annual operating cost of $94,000, and a salvage value of $60,000 after its 10-year economic life. The breakeven market value of the presently owned machine required to make the AW values of the two machines the same, if the presently owned machine is kept for 5 more years and then replaced with the challenger that has the same AW, is closest to: (choose one)
(a) $196,340 (b) $255,390 (c) $325,360 (d ) $394,770
What are the advantages of water for use in a thermal storage system?
A) its temperature remains stable when charging and discharging B) water can store more heat per pound than ice or phase change materials C) universal availability and low cost D) water storage takes up less space than ice or phase change materials
What tool is required when installing valves and springs?
A) An air grinder B) Valve spring compressor C) Internal spring expander D) Spring magnetizer