Discuss the effect of plastic brittleness in snap-fit joints
What will be an ideal response?
Snap-fit joints depend on the ability of the plastic material to deform slightly without breakage or permanent deformation. If the plastic part is so stiff that small amounts of movement will cause it to break, snap fits cannot be used. This breakage might also occur in the mold is a snap fit depends on an undercut in the part that must be stripped out of the mold.
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Three phases of plant development have been described as ________, ________, ________.
Fill in the blank(s) with the appropriate word(s).
Show that the value of If for the building of Figure 2.27 is 0.71.
Why are manufacturers replacing relay logic systems with solid state logic systems?
A) Solid state logic systems operate faster, use less power, and can control more functions. B) Most HVACR technicians are already trained on solid state logic systems. C) Solid state systems are less prone to problems due to noisy voltage signals. D) Solid state systems are simpler in design.
In a parallel circuit, ET = 120 V, R = 8.2 k?, and XL = 10 k?. What is IL?
A. 6.59 mA B. 9.28 mA C. 12 mA D. 14.63 mA