CSEC Technical Drawing June 2016 P2

TEST CODE

FORM TP 2016120

OI247O2O

MAY/JUNE 20I6

CARIBBEAN EXAMINATIONS COUNCIL CARIBBEAN SECONDARY EDUCATION CERTIFICATE@ EXAMINATION

TECHNICAL DRAWING Paper 02

- General

Proficiency

t

hour 40 minutes

10

MAY2016 (a.m.)

GENERAL INFORMATION

I.

Each candidate should have the following for this examination

Traditional Drawing Method Two sheets of drawing paper (both sides may be used) Drawing instruments Drawing board and T-square Metric scale rule Computer-A ided Drafting Method A minimum of three sheets of size I l " x 17" paper Personal computer with monitor, keyboard, mouse and printer Computer-A ided Drafting software

NOTE: ALL solutions to questions attempted for this Option MUST

I

---

be PRINTED for submission

2

. All dimensions

3

.

When first-angle or third-angle is not specified, the choice of projection is left to the candidate's discretion, in which case the type of projection used MUST be clearly stated.

4

.

Where scales to be employed are not stated, the

5

.

Each candidate should use his/her own judgement to supply any dimension or detail not directly shown on the drawings.

6

. The number of each question answered MUST be written next to the solution

7

.

8

. All geometrical

are given in millimetres unless otherwise stated

full size should

be applied.

Each candidate MUST enter his/her school code and registration number in the appropriate space at the bottom right-hand corner of the drawing paper.

construction lines MUST be visible on all answers submitted for BOTH Traditional Drawing and Computer-Aided Drafting Methods.

9. You are advised to take some time to read through

the paper and plan your answers.

DO NOT TURN THIS PAGE UNTIL YOU ARE TOLD TO DO Copyright @ 2014 Caribbean Examinations Council All rights reserved.

I I I

012470201F 2016

SO

-2This paper has TWO sections: Section I, Plane Geometry and Section II, Solid Geometry. Answer FOUR questions, TWO from Section I and TWO from Section II.

SECTION I

- PLANE GEOMETRY

Answer any TWO questions from this section.

1

Figure

I

(a)

Construct the given triangle.

(b)

Draw three circles touching each other with their centres on A, B and C respectively

shows a triangle ABC.

c 90

5f,

B

A 100

Figure

I (20 marks)

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-32

Figure 2 shows an irregular polygon ABCDE. AB CD: 100. Construct (a)

the given figure ABCDE

(b)

a similar figure

: 65, BC :

70,

AE

:

55, ED

:

70 and

with half the area ofABCDE D

C E

A

B

Figure 2 (20 marks)

GO ON TO THE NEXT PAGE 012470201F 2016

-43.

Figure 3 shows the outline of an elliptical template. Construct

(a)

the ellipse using a suitable method

(b)

a tangent and normal at the point

'P'on

the ellipse.

45

P

N

160

Figure 3 (20 marks)

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5

4.

Figure 4 shows a simple link mechanism. The crank OA rotates anticlockwise about O, while B is constrained to move along the horizontal line XY.

OA

:

40 mm, AB

:

100 mm and AP

:

25 mm.

(a)

Copy the given mechanism.

(b)

Plot the locus of 'P' for one revolution of OA P

A

x

l5

Figure 4 (20 marks)

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20t6

-6SECTION II

- SOLD

GEOMETRY

Answer any TWO questions from this section.

5.

Figure 5 shows two views of a quadrilateral prism. Draw

(a)

the given views

(b)

the development of the prism, with the opening on the edge

X-X

x

x

bo" 40

Figure 5 (20 marks)

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0t247020tF 2016

-7 6.

-

Figure 6 shows the plan and elevation of a cylinder with a point 'P'on it.

(a)

Draw the given views.

(b)

Construct a right-hand helix on the circumference of the cylindeq starting atpoint'P'. Show hidden lines.

P

070

P

Figure 6 (20 marks)

GO ON TO THE NEXT PAGE

0t247020/F 2016

-87

Figure 7 shows the plan and elevation for a truncated cylindrical prism pierced by a square hole

(a)

Copy the given views.

(b)

Project an auxiliary elevation on the given XY line.

x

ia i*

o t

Y

A

300

Figure 7 (20 marks)

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20t6

-9 8.

-

Figure 8 shows two orthographic views of a lever. Make an oblique drawing of the lever using CABINET projection. 2Holes - o.20

o30

r

\ \ )

50

o al I

I

I

I

I

I

e 6l o !

Figure 8 (20 marks)

END OF TEST IF YOU FINISH BEFORE TIME IS CALLED, CHECK YOUR WORK ON THIS TEST.

01247020/F 2016