EE Math1

Wikiversity Electrical & Electrical Engineering Schools The Lessons in ELECTRICAL/ELECTRONIC ENGINEERING ORIENTATION

Important Notes & Instructions on Answering the questions This Aptitude test is on Algebra and Pre-Calculus. Select the most correct answer of the four possible answers to each question. Use of calculator allowed. Perhaps it would help you to workout all your answers in a piece of paper, then attempt the questionaire.

Lessons in Electric Engineering Orientation Lesson #1: Introduction to Electrical Engineering Lesson #2: Introduction to Electronic Engineering Quiz Test 1: Algebra and pre-calculus← You are here Quiz Test 2: Geometry and data representation Quiz Test 3: Physics Science laws Quiz Test 4: chemical Science Processes Entrance Courses: Introduction to Engineering Math- MATH 090 comming soon!

Mathematics Aptitude test2: Questionaire 1. If $f(x)$ is a polynomial of the third degree of x and $f(a)= 0$, then ... (A) $f(x)=0$. (B) a is a root of $f(x)$. (C) a is negative. (D) a is positive. 2. In the following equation $f(x)=ax^2 + bx + c$, $\mathcal{4}$ is called a discriminant. If $\mathcal{4}\ge 0$ then ... (A) Roots are real and equal. (B) Roots are real and unequal. (C) Roots are real. (D) None of the above. 3. Which of the following graphs represents $f(x)=x^2 - 4$ ? (A) (B) (C) (D) 4. By exponential laws the following expression $2^{x-2} 3^{x-2}$ can be simplified to which of the following expressions? (A) $\frac{2^x}{2^2}.$$\frac{3^x}{3^2}$$= \frac{(2\times 3)^x}{(2\times 3)^2}$ (B) $2^{x}.3^{x} + 2^{2}.3^{2} =$$(2\times 3)^{x} + (2\times 3)^{4}$ (C) $\frac{2^{x-2}}{3^{x+2}} = 2^{x-2} - 3^{x+2}$ (D) None of the above. 5. $x_{1,2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$ is generally known as ... (A) Phythagorus theorem. (B) Quadratic formula. (C) Trigonometric Identity. (D) Gas equation. 6. The 1st term of an arithmetic sequence is 2 and the 15th term is 32. what is the middle term? (A) $\frac{2 + 32}{15} = 2.267$ (B) 12 (C) $\frac{2 + 32}{2} = 17$ (D) None of the above 7. The first derivative of the function $f(x)=6x^2 - 3x - 1$ is ... (A) $\frac{df}{dx}= 12x - 3$ (B) $\frac{{d^2}f}{dx^2}= 12x$ (C) $\frac{{d^2}f}{dx^2}= 0$ (D) $f(x)=6x^2 - 3x$ 8. What is a local maximum of the following polynomial $A=2t^3 - 3t^2 + t$ is ... (A) 3 (B) 1 (C) 6 (D) $\frac{1}{3}$ (E) None of the above 9. Which of the following diagrams is the correct sketch representation of the following constraints: $15x + 6y \le 3 000$ $5x + 4y \le 1 300$ $x + 2y \le 500$ ... ... (A) (B) (C) (D) 10. If the profit made made from selling X and Y is $P = 200x + 5000y$ then using feasible region selected from Q9 the maximum profit will be ... (A) $P = 200(150) + 5000(150)$. (B) $P = 200(200) + 5000(200)$. (C) $P = 200(160) + 5000(325)$. (D) None of the above. Your score is 0 / 0

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