Shaft packing and insert mounting, which includes O-rings, V-rings, wedges, and U-cups, describe the _____
found in mechanical seals.
a. lubricating surfaces
b. closing mechanisms
c. primary faces
d. secondary seals
d
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Pictorial drawings are often used to accompany two-dimensional (2D) orthographic multiview drawings to provide a realistic 3D view to help improve visualization.
Answer the following statement true (T) or false (F)
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Metric thread pitch is measured in _________
A) Millimeters B) Inches C) Centimeters D) None of these
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After converting fractions to decimals it is sometimes necessary to reduce or simplify the fraction.
Answer the following statement true (T) or false (F)
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Which size category of production greenhouses is in the greatest difficulty today and why?
What will be an ideal response?
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