Your part has air bubbles, and excessive flash. What's wrong, and how could you fix it? Give 2 parameter changes
What will be an ideal response?
Possible problems to look at would include: melt temperature, pressure on melt, fill rate, mold construction, machine settings, injection time, gate design, mold surface temperature, and internal moisture.
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Describe welded steel pipe and how it is made.
What will be an ideal response?
The lifting capacity of a block and tackle is higher if it has _____.
a. more parts of line b. more hooks c. bigger hooks d. more shackles
Which of the following is NOT true of magnetic fields?
A. unlike poles attract B. flux lines exit from the north pole C. flux lines enter the south pole D. flux density is lowest at the poles
The correct lighting procedure for an oxyacetylene torch is:
A) Crack the acetylene and light it first, then add the oxygen. B) Crack the oxygen and light it first, then add the acetylene. C) Fully open both the acetylene and oxygen, wait 30 seconds, and then light the mixture. D) Crack both the acetylene and oxygen and light the mixture.