Mock exam paper A Ordinary Level Marking Scheme

Q1

10

2

Elevation 2 lines. Plan 3 lines. (5x2 marks)

Draughtsmanship

Q2

8

4

For a good quality, well proportioned freehand pictorial sketch

(5 marks for an average quality sketch or if rule used)

For appropriate colour or shading

Q3

6

6

Correct name

1 Use

Q4

6

6

Half the vertical height of the triangle

Correct rectangle

Q5

6

6

Circle located in correct position

Focal points clearly marked on the major axis as F1 & F2.

Q6

10

2

All lines correct (-1 per incorrect line or inaccuracy)

Shade or shadow

Q7

12

16 – 17 sq. Metres = 12

(15 – 18 = 8 marks)

Q8

6

6

A = 600mm

B = 600mm

Q9

8

4

Correct Elevation

Good size and proportion

Q10

6

6

A – B =Trim

B – C = Mirror

Q11

8

4

For each projection line of letter E to the vertical plane

(-1 mark for each incorrect line)

For the correct outline on vertical plane

Q12

7

5

1 mark per correct projection line to auxiliary elevation

Correct heights taken from elevation to auxiliary elevation

Q13

8

4

4 marks per R20 arc drawn from centre of circles A and B.

4 marks for locating the circle in correct position touching A & B

Q14

8

4

Hour hand has been rotated 60degs clockwise.

Hour hand has been drawn in correct position.

Q15

4

8

2 marks per vanishing point

1 mark per correct line

Total

Question 2

Orthographic Projection

Orthographic Outline (10)

Elevation & End View positioned correctly

(4 marks if incorrect position of plan, 1 view = 3 marks)

Elevation (20)

8

4

4

4

Wall outline (4 x 2 marks)

Window (4 x 1 mark)

Semi Circle (4 marks)

Door (2 x 2 marks)

End View (24)

8

6

4

6

Wall Outline (4 x 2 marks)

Pitched Roof (2 x 3 marks)

Window (4 x 1 mark)

Porch (3 x 2 marks)

Dimension Lines (4)

4

1 mark per dimension line (4 x 1 mark)

(12)

Drafting, Accuracy, Presentation

Total 70

Question 3

Set – Up (8)

2

6

X an Y axis clearly marked

3 marks per large circle

Ellipse (32)

8

12

12

Ellipse (ABCD) Major & Minor Axis (2 x 4 marks)

Construction

Drawing curve of ellipse

Arcs (10)

5

5

R40 Arc (2 marks for location, 2 for arc).

R20 Arc (2 marks for location, 2 for arc).

Legs (8)

2

6

Correct Location

1 mark per line (6 x 1 mark)

(12)

Drafting, Accuracy, Presentation

Total 70

Question 3...

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