27. Which of the following is greater than the depth of cut, the value of r (cutting ratio) is always less than unity: (A)chip-compression ratio, (B) chip-compression factor, (C) chip thickness, (D) chip ratio, or (E)material removing ratio?

6. Which one of the following is the correct definition of ultimate tensile strength, as derived from the results of a tensile test on a metal specimen: (A) the stress encountered when the stress-strain curve transforms from elastic to plastic behavior, (B) the maximum load divided by the final area of the specimen, (C) the maximum load divided by the original area of the specimen, (D) the stress observed when the specimen finally fails (E) none of the above?

27. Which of the following is greater than the depth of cut, the value of r (cutting ratio) is always less than unity:
(A)chip-compression ratio,
(B) chip-compression factor,
(C) chip thickness,
(D) chip ratio, or
(E)material removing ratio?

相關試題

相關試卷