This is 50 items Practice Examinations set 4 in Board Examination in Mathematics composed of previous Board Exams Questions. Read each questions and choices carefully! Choose the best answer. Familiarize each and every questions to increase the chance of passing the Engineering Board Examination.

#### Start the Test Yourself Exam 4

โ Mathematics Board Examination Mastery Test 3: Engineering Pre-Board

**Choose the letter of the best answer in each questions.**

1. The area of the triangle bounded by the coordinate axes and the tangent to the curve y = x^{2} at the point (2, 4) is ______.

a) 4

b) 2

c) 3

d) 5

Answer: **Option A**

Explanation:

2. For what value of x will the curve y = x^{3} – 3x^{2} + 4 be concave upward?

a) 3

b) 4

c) 2

d) 6

Answer: **Option C**

Explanation:

3. If x = t^{2} and y = 2t, find d^{2}y/ dx^{2}

a) -1/t^{2}

b) -1/2t^{3}

c) -1/2t^{2}

d) -l/t^{3}

Answer: **Option B**

Explanation:

4. Find the area bounded by the parabola x^{2} = 8y and its latus rectum.

a) 16/3

b) 32/3

c) 22/3

d) 11/3

Answer: **Option B**

Explanation:

5. The point where the sense of concavity of a curve changes is called the _______ point.

a) Maximum

b) Minimum

c) Inflection

d) Intersection

Answer: **Option C**

Explanation:

6. If y = cos^{2}x, then y^{1}

a) -2 Sin2x

b) -Sin2x

c) -Cos2x

d) -2Cos2x

Answer: **Option B**

Explanation:

7. Find the approximate percentage error made in computing the surface area of a sphere if an error of 20% is made in measuring the radius of the sphere.

a) 3%

b) 2%

c) 4%

d) 5%

Answer: **Option C**

Explanation:

8. Find the equation of the tangent to y = x^{4} – x^{2} + 2 at the point (-1,2)

a) x + 2y-3=0

b) 2x+y=0

c) 2x-y+3=0

d) 2x-y=0

Answer: **Option B**

Explanation:

9. A set of elements that is taken without regard to the order in which the elements are arranged is called a ______.

a) Sequence

b) Progression

c) Combination

d) Probability

Answer: **Option C**

Explanation:

10. If the line through (-1,3) and (-3,-2) is perpendicular to the line through (-7,4) and (x,0). Find the value of x.

a) 5

b) 4

c) 3

d) 1

Answer: **Option C**

Explanation:

11. The graph of 3x^{2} โ y = y2 + 6x is/an_______.

a) Parabola

b) Ellipse

c) Hyperbola

d) Circle

Answer: **Option C**

Explanation:

12. The radius of a circle is diminished by 20%, then its area will be diminished by ______.

a) 46%

b) 36%

c) 26%

d) 16%

Answer: **Option B**

Explanation:

13. The base of a right prism is a rectangle with edges 3 cm and 5 cm. If its lateral is 64 sq cm, find its altitude.

a) 6cm

b) 4cm

c) 8cm

d) 7cm

Answer: **Option B**

Explanation:

14. If 16 is 4 more than 3x, then 2x – 5 = ?

a) 2

b) 3

c) 4

d) 1

Answer: **Option B**

Explanation:

15. If the 1st and 4th terms of a harmonic progression are 1/3 and 1/9 respectively, find the 8th term.

a) 1/17

b) 1/11

c) 1/14

d) 1/13

Answer: **Option A**

Explanation:

16. If y = x /2 + (sin2x) /4; find x for which dy/ dx = 0.

a) ฯ/4

b) ฯ/2

c) ฯ/3

d) ฯ/6

Answer: **Option B**

Explanation:

17. At what point of the curve y = x^{3} + 3x are the values of yโ and yโ equal?

a) (-1, -4)

b) (2,14)

c) (1,4)

d) (0,0)

Answer: **Option A**

Explanation:

18. If the 3rd derivative of a function in one variable is equal to zero, then the function is _______.

a) Quadratic

b) Cubic

c) Linear

d) Quartic

Answer: **Option A**

Explanation:

19. A number which can not he expressed as the quotient of two integers is ________.

a) Rational

b) irrational

c) Natural

d) Prime

Answer: **Option B**

Explanation:

20. The angle ฮธ in the polar equation z = r(cosฮธ + isinฮธ) is called the_____.

a) Argument

b) Modulus

c) Period

d) Phase Angle

Answer: **Option B**

Explanation:

21. Find the area bounded by the parabola x^{2} = 16(y-1) and its latus rectum.

a. 46.72

b. 42.67

c. 47.62

d. 46.27

Answer: **Option B**

Explanation:

22. What is the value of x for which y = 2x^{3 }– 3x^{2 }– 36x + 25 will have an inflection point?

a. 1/3

b. 1/4

c. ยฝ

d. 1/5

Answer: **Option C**

Explanation:

23. Find the radius of curvature of y = 2x^{2} at the point (1, 2).

a. 17.25

b. 17.52

c. 15.72

d. 15.27

Answer: **Option B**

Explanation:

24. The entrance arch of the municipality of San Pedro has the shape of a parabola with vertex at the top and axis vertical. It is 4 m wide at the base and 8 m high. How wide is its halfway?

a) 2.83

b) 3.82

c) 2.38

d) 3.28

Answer: **Option A**

Explanation:

25. Evaluate โซ (1- x)/ (1 -โ x) dx with a limit from 0 to 1.

a) 1.5

b) 1.8

c) 1.7

d) 1.9

Answer: **Option C**

Explanation:

26. The graph of x^{3} + y^{3} – 3axy = 0 is called the________

a. Cissoid of Diodes

b. Strophoid

c. Folium of Descartes

d. Cycloid

Answer: **Option C**

Explanation:

27. At the maximum point, the value of yโ is _____.

a. Positive

b. Negative

c. Zero

d. Infinity

Answer: **Option B**

Explanation:

28. If 8 = 0, then the line Ax +By + C = 0 is _____.

a. Parallel to x-axis

b. Coincident with y-axis

c. Parallel to y-axis

d. Slanting upward

Answer: **Option C**

Explanation:

29. Which of the following equations has a graph called the Spiral of Archimedes?

a. rฮธ = a

b. r = aฮธ

c. r = e^{aฮธ}

d. ฮธ = Ln (r)

Answer: **Option B**

Explanation:

30. Every point on a parabola is equidistant from a fixed point and a fixed line. The fixed line is called the _____.

a. Asymptote

b. Latus Rectum

c. Directrix

d. Axis

Answer: **Option C**

Explanation:

31. If kx^{3} – (k + 3) x^{2} + 13 is divided by x – 4 and the remainder is 157, then theย value of k is

a. 6

b. 3

c. 5

d. 4

Answer: **Option D**

Explanation:

32. If sin A = 4/5. A in quadrant II, sin B = 7/25, B in quadrant I, find sin (A + B).

a. 4/5

b. 3/5

c. 2/5

d. 3/4

Answer: **Option B**

Explanation:

33. If the perimeter of a regular octagon is 160, find the length of its apothem.

a. 24.41

b. 21.41

c. 24.14

d. 21.14

Answer: **Option C**

Explanation:

34. Find the value of x if (2)log2 x = 5.

a. 3

b. 4

c. 5

d. 6

Answer: **Option C**

Explanation:

35. What is the probability of obtaining at least 4 heads when a coin is tossed 5 times?

a. 0.1857

b. 0.1758

c. 0.1785

d. 0.1875

Answer: **Option D**

Explanation:

36. Express -4 – 4 โ3 i in trigonometric form.

a. 8 cis 60ยฐ

b. 8 cis 120ยฐ

c. 8 cis 240ยฐ

d. 8 cis 300ยฐ

Answer: **Option C**

Explanation:

37. If log_{x} ( 1/144) = – 2 , and x > 0, then x equals

a. -12

b. 12

c. -4

d. 10

Answer: **Option B**

Explanation:

38. If the complement of an angle ฮธ is 2/5 of its supplement, then ฮธ equals

a) 20ยฐ

b) 30ยฐ

c) 40ยฐ

d) 50ยฐ

Answer: **Option B**

Explanation:

39. In how many ways can 8 students at Cambridge University be divided into groups of 2?

a. 2520

b. 5040

c. 2250

d. 4500

Answer: **Option A**

Explanation:

40. If Tan A = 1/3 and Cot B = 4, then, Tan (A + B) is equal to ____.

a. 11/7

b. 7/11

c. 7/12

d. 12/7

Answer: **Option B**

Explanation:

41. Simplify sin2A / (1+ cosA)

a. Cot A

b. Tan A

c. Sec A

d. Sin A

Answer: **Option B**

Explanation:

42. The hypotenuse of a right triangle is 34 m and one leg is 14 cm longer than the other. The lengths of the two legs are _____ and _____ cm.

a. 12 and 30

b. 14 and 30

c. 16 and 30

d. 16 and 12

Answer: **Option C**

Explanation:

43. The distance between points (-2, 9) and ( 4, -7) is

a. 18

b. 17.09

c. 19.07

d. 19

Answer: **Option B**

Explanation:

44. How many permutations can be made from the letters A, B, C if all letters are taken at a time?

a. 5

b. 4

c. 6

d. 7

Answer: **Option C**

Explanation:

45. How many 3 digit numbers may be formed from the digits 0, 1, 2, 3, 4 & 5 if no digit may be repeated in a given number?

a. 100

b. 200

c. 300

d. 400

Answer: **Option A**

Explanation:

46. How many 3 digit numbers may be formed from the digits 0, 1, 2, 3, 4 & 5 if digits may be repeated in a given number?

a. 180

b. 170

c. 190

d. 150

Answer: **Option A**

Explanation:

47. How many in no.45 are odd?

a. 38

b. 28

c. 48

d. 58

Answer: **Option C**

Explanation:

48. How many in no. 45 are even?

a. 42

b. 32

c. 22

d. 52

Answer: **Option D**

Explanation:

49. How many in no. 46 are even?

a. 80

b. 90

c. 70

d. 60

Answer: **Option B**

Explanation:

50. How many in no. 45 are less thanย 330?

a. 42

b. 52

c. 32

d. 22

Answer: **Option B**

Explanation:

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