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) $latex m = 10x^4 + 12x^3 + 4x + 3$
A piston inside a cylinder undergoes an isentropic compression with the following values.
$latex p_1= 4.57 \frac{N}{cm^2}$
$latex p_2= 34.07 \frac{N}{cm^2}$
$latex V_1 = 257 cm^3$
If the specific heat ratio (k) is 1.4, What is the compressed volume?
(A) 61.2cm3 (B) 30.5cm3 (C) 90.4cm3 (D) 257cm3
Correct Answer: B
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
Correct Answer: D
The following data have been collected:
Which of the following statements is true?
(A) The median and the mode are equal. (B) The mean and the median are equal. (C) The mean and the mode are equal. (D) The mean is larger than both the mode and the median.
Correct Answer: A
More PE Exam Questions
- 1
A piston inside a cylinder undergoes an isentropic compression with the following values.
$latex p_1= 4.57 \frac{N}{cm^2}$$latex p_2= 34.07 \frac{N}{cm^2}$
$latex V_1 = 257 cm^3$
If the specific heat ratio (k) is 1.4, What is the compressed volume? - 2What is the natural frequency of a body that has a period of oscillation of 2.7 seconds?
- 3A plane intercepts the coordinate axis at (4,6,10). What are the Miller indices for this plane?
- 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 elongation of a 2 meter aluminum bar when it has been stressed to 512 MPa? (E = 69 GPa)?