Which of the following statements is FALSE when concerning the hot working of metal?
(A) Produce a fine grained product
(B) Removes strain hardening
(C) Combines of annealing and cold working
(D) Decreases the density of the metal
Find the slope of the line defined by: $latex y=2x^5 + 3x^4 + 2x^2 + 3x + 1$
（A）$latex m = 2x^6 + 3x^4 + 2x^3 + 3$ （B） $latex m = 10x + 12x^2 + 4x^4 + 3$ （C） $latex m = 10x^5 + 12x^4 + 4x^2 + 3$ （D） $latex m = 10x^4 + 12x^3 + 4x + 3$
Correct Answer: D
The magnitude(N) of the resultant of the three coplanar forces, A, B, and C, is most nearly:
(A) 7.0 (B) 7.8 (C) 9.2 (D) 10.3
Correct Answer: A
A tube that is 10 feet long and 2 feet in diameter is placed in an air
stream. The flow of the air is at a speed of 15 ft/s and is
perpendicular to the long axis of the tube. If the coefficient of drag
is 1.3 and the density of air is 0.075 lbm/ft3 What is the drag on the cylinder?
(A) 150 lbf (B) 200 lbf (C) 320 lbf (D) 220 lbf
Correct Answer: D
More PE Exam Questions
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