What is blow molding?
What will be an ideal response?
Blow molding involves placing a heated, preformed plastic tube called a paison in a forming die. Air pressure is raised inside the plastic tube, forcing it to conform to the shape of the die. When it cools, the die is opened and the part is removed. Most bottles are formed this way.
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What are some materials that are used to increase the organic matter in a new
lawn?
What will be an ideal response?Rootstocks can be used to enable plants to tolerate poorly drained soils
Indicate whether the statement is true or false
The smart grid ___________
a. Is exactly like the regular grid and can deliver only electrical power. b. Has the ability to send and receive information to and from each customer along with electrical power. c. Filters and purifies the voltage as it is delivered.
When welding equipment is used that cannot produce sufficient welding current for the task, _____
a. the workpiece tends to overheat b. the weld must progress too quickly c. only weave beads can be used d. a special electrode can compensate