What are the advantages of using a plastic piston?
What will be an ideal response?
Phenolic plastic pistons are strong, light, excellent insulators, immune from corrosion, and economical to make. In addition, the plastic surface is not as slippery as chrome plating and grips the piston seals better than a steel piston does.
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Is angle E a right angle or a straight angle?
What will be an ideal response?
The weight of all rigging equipment, exclusive of the load, is considered the _____.
a. above-the-hook deductions b. counterweight c. net capacity d. below-the-hook deductions
?After the surface of an aluminum AWS SENSE workmanship sample has been cleaned, it should be welded within ____ minutes.
A. ?10 B. 20? C. ?1 hour D. ?8 hours
The statement that total current entering a point must equal total current leaving that point best describes
_____. a. Ohm?s law b. Coulomb?s total current law c. The Theory of Relativity d. Kirchhoff?s current law