## 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/ft^{3} 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

- 1Which of the following can not be equal to 1 mol of the substance at standard conditions?
- 2
What is the standard equation for calculating the future worth (F) when given the annual rate of return (I) and the present rate (P)?

- 3An iron sphere with a mass of 1.5 kg hangs from a 15 cm long spring. If the spring constant is 0.75 N/m what is the period of oscillation when the sphere is pulled down and released?
- 4You are tasked with identifying where the stress concentrations may appear on a support beam. Of the following locations which will not have a stress concentration? I Near concentrated loads II. Close to discontinuities of the beam III Where distributed loads occur.
- 5What is the hydraulic diameter of a 20 inch diameter pipe that is half full?