This process, also known as impact grinding, is a process in which a high- frequency mechanical vibration is maintained in a tool designed to a specific shape.
a. electrochemical machining (ECM)
b. electrodischarge machining (EDM)
c. electron beam (EB)
d. ultrasonic machining
d. ultrasonic machining
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Portland cement sets and gains strength by virtue of its chemical reaction with
A) aggregates. B) oxygen in air. C) carbon dioxide in air. D) water. E) none of the above.
The ____________________ principle is used to solve an equation that contains an unknown that is raised to a power.
Fill in the blank(s) with the appropriate word(s).
?Technician A says that a pressed-fit cylinder sleeve usually has an I.D. that is smaller than the original bore size. Technician B says to clean the block thoroughly with solvent after honing. Who is right
A. ?Technician A only B. ?Technician B only C. ?Both A and B D. ?Neither A nor B
Nails for drywall application should have heads that are thin at the rim and _____
a. oval b. domed c. flat or concave d. convex