Chemical inputs became common in agriculture around what time period?
a. 1800 c. after WWI
b. 1850 d. after WWII
D
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For a 700 mm cut with a feed of 0.25 mm and an rpm of 600, what is the cutting time in minutes? Use T = L/FN. Round to one decimal place.
A. 4.9 B. 4.7 C. 6.3 D. 7.0
Which of the following choices describes the main advantage of a Pittsburgh seam in sheetmetal fabrication?
a. No fasteners are required to secure pieces of sheet metal. b. They are simpler than other kinds of sheet-metal seams. c. They provide sliding joints between sections of sheet metal. d. They are widely used on vertical vessel longitudinal seams.
What is the purpose of the "wedding order form"?
What will be an ideal response?
Which of the following statements about ah H-block thermostatic expansion valve is not true?
A. The H-block TXV contains two refrigerant passages one from the condenser to the evaporator and the other passage is from the evaporator outlet to the inlet of the compressor. B. The H-block TXV is considered an internally equalized valve. C. The H-block TXV is considered an externally equalized valve. D. The H-block TXV is capable of sensing the temperature of the refrigerant directly at the evaporator outlet.