CSEC Technical Drawing Paper 1 May/June 2019 - Free CXC Past Paper with Answers

CSEC Technical Drawing Paper 1 May/June 2019 Questions

Every question from this paper as text. See the answers and worked solutions. Questions are the property of the Caribbean Examinations Council; Caribbean AI is not affiliated with CXC.

1. 1.

   In the figure above, ABCDEF is a regular hexagon. What is the value of x?

   

   1. (A)

      50°

   2. (B)

      60°

   3. (C)

      70°

   4. (D)

      80°

2. 2.

   The diagram illustrates the proper method of

   

   1. (A)

      constructing an ellipse with trammel

   2. (B)

      constructing the hyperbola as a conic section

   3. (C)

      finding the foci, the normal and the tangent of an ellipse

   4. (D)

      finding the focus of a parabola and the tangent at a point

3. 3.

   The diagram above shows the construction of a triangle when given the

   

   1. (A)

      altitude and vertical angle

   2. (B)

      hypotenuse and one angle

   3. (C)

      altitude and base angles

   4. (D)

      perimeter and vertical height

4. 4.

   In the diagram, ABCD is a parallelogram. The triangle CDE is equal in area to

   

   1. (A)

      ABCD

   2. (B)

      ABCD 4

   3. (C)

      ABCD

   4. (D)

      ABCD 2

5. Item 5 refers to the following construction.

   5.

   In the construction above, the angle X is

   

   1. (A)

      60°

   2. (B)

      65°

   3. (C)

      70°

   4. (D)

      75°

6. 6.

   The fire emergency exit doors leading from a workshop should open

   1. (A)

      outwards

   2. (B)

      sideways

   3. (C)

      upwards

   4. (D)

      inwards

7. Item 7 refers to the following diagram.

   7.

   The conic section at A-A appears as

   

   1. (A)

      a circle

   2. (B)

      a triangle

   3. (C)

      an ellipse

   4. (D)

      a parabola

8. 8.

   When a straight line touches an arc and forms a right angle with the radius of the circle

   1. (A)

      a chord is formed

   2. (B)

      a point of tangency is formed

   3. (C)

      the curve blends exactly

   4. (D)

      the line and the arc are similar in shape

9. Item 9 refers to the following diagram.

   9.

   In the drawing, EF to EF1 is in the ratio 3:4. The length of EF1 is

   

   1. (A)

      90

   2. (B)

      60

   3. (C)

      30

   4. (D)

      15

10. Item 10 refers to the following diagram of a square equal in area to a rectangle.

    10.

    What is the length of EF in the construction?

    

    1. (A)

       15 mm

    2. (B)

       35 mm

    3. (C)

       55 mm

    4. (D)

       75 mm

11. 11.

    Which of the following constructions is illustrated above?

    

    1. (A)

       A square

    2. (B)

       Irregular curves

    3. (C)

       Circles in isometric

    4. (D)

       Circles in perspective

12. 12.

    In the diagram, which of the labelled types of lines indicates a cutting plane line?

    

    1. (A)

       I

    2. (B)

       II

    3. (C)

       III

    4. (D)

       IV

13. 13.

    On which of the following planes is the 'plan' shown?

    

    1. (A)

       I only

    2. (B)

       II only

    3. (C)

       III only

    4. (D)

       I and III only

14. 14.

    Which of the following can be found if the major and minor axes are given?

    1. (A)

       Radial lines

    2. (B)

       Focal points

    3. (C)

       Parallel lines

    4. (D)

       Intersecting lines

15. Item 15 refers to the following drawing.

    15.

    Which of the following polygons can be constructed in the circle that has a radius of 8P?

    

    1. (A)

       A hexagon

    2. (B)

       A nonagon

    3. (C)

       A pentagon

    4. (D)

       An octagon

16. 16.

    If the perimeter of a triangle is 120 mm and its sides are in the proportion 4:5:3 respectively, then the lengths of the sides, in mm, are

    1. (A)

       20, 25 and 15

    2. (B)

       40, 60 and 20

    3. (C)

       35, 55 and 30

    4. (D)

       40, 50 and 30

17. 17.

    Which of the following is used to draw an octagon if the length of one side is given?

    1. (A)

       A 60° set square

    2. (B)

       A 45° set square

    3. (C)

       A protractor, using the 40° angle

    4. (D)

       A protractor, using the 72° angle

18. Item 18 refers to the following diagram.

    18.

    In the drawing above, in order to divide AB in the ratio 4:5:3 by proportional divisions, it is necessary to first

    

    1. (A)

       divide 72 by 6

    2. (B)

       step off 12 equal divisions on AB

    3. (C)

       step off 12 equal divisions on AC

    4. (D)

       measure AB and divide it into 3 parts

19. 19.

    Given that one of the angles of a rhombus is 120°, which of the following is the value of one of the interior adjacent angles?

    1. (A)

       31°

    2. (B)

       40°

    3. (C)

       60°

    4. (D)

       80°

20. 20.

    What is the value of angle P in the diagram?

    

    1. (A)

       30°

    2. (B)

       45°

    3. (C)

       60°

    4. (D)

       90°

21. 21.

    A quadrilateral with ONE pair of parallel sides is a

    1. (A)

       square

    2. (B)

       rhombus

    3. (C)

       rectangle

    4. (D)

       trapezium

22. 22.

    Which of the following diagrams shows triangles of equal area between parallel lines?

    

    1. (A)

       Diagram (A)

    2. (B)

       Diagram (B)

    3. (C)

       Diagram (C)

    4. (D)

       Diagram (D)

23. 25.

    Which of the following diagrams shows the proper method of bisecting an angle?

    

    1. (A)

       Diagram (A)

    2. (B)

       Diagram (B)

    3. (C)

       Diagram (C)

    4. (D)

       Diagram (D)

24. 26.

    If a car picks up a tack on the circumference of one of its tyres, then the path traced by the tack as the car is driven is called

    1. (A)

       a cycloid

    2. (B)

       a parabola

    3. (C)

       an involute

    4. (D)

       an archimedean spiral

25. 27.

    In the diagram, the ratio of the area of EFGH to that of EGIJ is

    

    1. (A)

       1:4

    2. (B)

       1:3

    3. (C)

       1:2

    4. (D)

       2:3

26. 28.

    Which of the following diagrams correctly shows the bisector of the line AB?

    

    1. (A)

       Diagram A

    2. (B)

       Diagram B

    3. (C)

       Diagram C

    4. (D)

       Diagram D

27. Item 29 refers to the following drawing instrument.

    29.

    Which of the following represents the size of angle X in the drawing instrument shown?

    

    1. (A)

       $30^{\circ}$

    2. (B)

       $45^{\circ}$

28. 30.

    Which of the following diagrams represents the drawing of a tangent to a circle at a point on the circumference?

    

    1. (A)

       Diagram A

    2. (B)

       Diagram B

    3. (C)

       Diagram C

    4. (D)

       Diagram D

29. 31.

    If the length of a line on a drawing is 25 mm and the scale ratio is 1:10, then the actual length is

    1. (A)

       2.5 mm

    2. (B)

       25.0 mm

    3. (C)

       100.0 mm

    4. (D)

       250.0 mm

30. Item 32 refers to the following rectilinear figure. S R P Q

    32.

    The rectilinear accuracy of the figures can be tested by measuring the

    

    1. (A)

       perpendiculars

    2. (B)

       diagonals

    3. (C)

       angle P

    4. (D)

       angle S

31. Item 33 refers to the following diagram. DIRECTRIX Q-H-P

    X X F

    33.

    Which of the following is the eccentricity of FP:PQ in the diagram above?

    

    1. (A)

       1:1

    2. (B)

       1:2

    3. (C)

       1:3

    4. (D)

       1:4

32. 34.

    Which of the following developments shows a cylinder which is cut obliquely at both ends?

    

    1. (A)

       Diagram A

    2. (B)

       Diagram B

    3. (C)

       Diagram C

    4. (D)

       Diagram D

33. 35.

    Which of the following instruments is used when drawing an irregular curve on a surface development?

    1. (A)

       Isometric template

    2. (B)

       French curve

    3. (C)

       Compass

    4. (D)

       Bow pen

34. Item 36 refers to the following drawing.

    36.

    The diagram shows the development of a truncated

    

    1. (A)

       cylindrical pipe

    2. (B)

       rectangular pipe

    3. (C)

       hexagonal prism

    4. (D)

       hexagonal pyramid

35. 37.

    The perpendicular distance between lines PQ and RS of a trapezium, PQRS, is 3.5 cm. Which of the following lines would be parallel?

    1. (A)

       SP and SR

    2. (B)

       PR and QS

    3. (C)

       RS and QP

    4. (D)

       PS and QR

36. Item 38 refers to the following diagram.

    38.

    The lines marked X on the diagram are symbols which indicate

    

    1. (A)

       the axes of symmetrical parts

    2. (B)

       that the edges are to be measured

    3. (C)

       that sections are to be removed

    4. (D)

       the continuation of the objects

37. Item 39 refers to the following diagram.

    39.

    Triangle ABC is drawn within a semicircle of diameter 100 mm. AB is equal to 80 mm, what is the length of BC?

    

    1. (A)

       60 mm

    2. (B)

       50 mm

    3. (C)

       36 mm

    4. (D)

       32 mm

38. 40.

    Which of the following instruments is used to draw irregular curves?

    1. (A)

       Compass

    2. (B)

       Protractor

    3. (C)

       Flexicurve

    4. (D)

       Radius curve

39. 41.

    What is the value of the angle ẞ?

    

    1. (A)

       60°

    2. (B)

       70°

    3. (C)

       90°

    4. (D)

       120°

40. 42.

    Which of the following shapes is a pentagon?

    

    1. (A)
       <image>
    2. (B)
       <image>
    3. (C)
       <image>
    4. (D)
       <image>
41. 43.

    When a draftsman is drawing a true horizontal line, the pencil point should be guided by a

    1. (A)

       scale

    2. (B)

       T-square

    3. (C)

       set square

    4. (D)

       straight edge

42. 44.

    Which of the following BEST describes the quadrilateral?

    1. (A)

       A square-shaped figure

    2. (B)

       The point where two lines meet

    3. (C)

       A four-sided figure with two parallel sides and equal angles

    4. (D)

       A plane figure bounded by four straight lines and the interior angles add up to 360°

43. 45.

    Which of the following diagrams shows the correct division of a line (geometrically) into two parts in the ratio 2:3?

    

    1. (A)

       Diagram (A)

    2. (B)

       Diagram (B)

    3. (C)

       Diagram (C)

    4. (D)

       Diagram (D)

44. 46.

    Which of the following methods of drawing an ellipse involves constructing a rectangle?

    1. (A)

       Concentric circle

    2. (B)

       Intersecting arcs

    3. (C)

       Intersecting line

    4. (D)

       Trammel

45. 47.

    A development of an object is a drawing showing

    1. (A)

       one view

    2. (B)

       two views

    3. (C)

       a pictorial sketch

    4. (D)

       the unfolding of the surfaces

46. 48.

    Which of the following diagrams shows the correct procedure for drawing a perpendicular at the end of a line?

    1. (A)

       Diagram with 45° angles marked

    2. (B)

       Diagram showing arcs for a perpendicular bisector

    3. (C)

       Diagram showing intersecting arcs from endpoints of a line segment

    4. (D)

       Diagram showing a right angle construction

47. 49.

    In technical drawing, the phrase 'curves meeting each other tangentially' means that the curves

    1. (A)

       will meet smoothly

    2. (B)

       will not blend properly

    3. (C)

       have sufficient clearance

    4. (D)

       will meet at right angles

48. 50.

    In the diagram, a crank, QR, rotates about a fixed centre, R. A rod, PQ, is pin-pointed to the crank at Q and freely slides in guides at P. The locus traced by point S for one revolution of QR is

    

    1. (A)

       a cone

    2. (B)

       an ellipse

    3. (C)

       a parabola

    4. (D)

       a hyperbola

49. Item 51 refers to the following drawing.

    51.

    The drawing above is to be reproduced in third-angle projection. On which of the following views can the distance, X, be measured?

    I. End II. Plan III. Front

    

    1. (A)

       I and II only

    2. (B)

       I and III only

    3. (C)

       II and III only

    4. (D)

       I, II and III

50. 52.

    A netball court has a length of 30 m. A line representing this distance measures 3 cm. To what scale is the line drawn?

    1. (A)

       1: 100

    2. (B)

       1: 200

    3. (C)

       1: 500

    4. (D)

       1:1 000

51. 53.

    Which of the following is a view of a right, square pyramid?

    

    1. (A)

       Cone

    2. (B)

       Hexagonal prism

    3. (C)

       Square pyramid

    4. (D)

       Triangular pyramid

52. 54.

    Which of the following views would show an object as if it were cut across, exposing inside details?

    1. (A)

       Frontal

    2. (B)

       Auxiliary

    3. (C)

       Exploded

    4. (D)

       Sectional

53. 55.

    When designing a new product, which type of drawing is usually made FIRST?

    1. (A)

       Scale drawing

    2. (B)

       Sketch solution

    3. (C)

       Detail solution

    4. (D)

       Engineering drawing

54. 56.

    Which of the following layouts represents the correct orthographic projection of a shaped block?

    

    1. (A)

       Diagram A

    2. (B)

       Diagram B

    3. (C)

       Diagram C

    4. (D)

       Diagram D

55. 57.

    A circle is drawn inside a polygon. If that circle touches all the sides of the polygon, it is known as

    1. (A)

       an internal circle

    2. (B)

       an escribed circle

    3. (C)

       an inscribed circle

    4. (D)

       a circumscribed circle

56. 58.

    A student falls and hits his head hard against the edge of a technical drawing table. He is MOST likely to suffer from a

    1. (A)

       concussion

    2. (B)

       laughing fit

    3. (C)

       heart attack

    4. (D)

       nervous breakdown

57. 59.

    The diagram shows the construction of a regular hexagon, given the

    

    1. (A)

       length of the sides

    2. (B)

       perimeter and altitude

    3. (C)

       length of the diagonals

    4. (D)

       perpendicular distance between the sides

58. Item 60 refers to the following diagram.

    60.

    Which of the following representations is correct for the first-angle orthographic projection of the object shown?

    

    1. (A)

       A diagram showing the orthographic projection.

    2. (B)

       A diagram showing the orthographic projection.

    3. (C)

       A diagram showing the orthographic projection.

    4. (D)

       A diagram showing the orthographic projection.