Peterhead Academy

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Peterhead Academy
Graphic Communication
Technology Department
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GC Credit Paper 2002 Question 9

• A pictorial view (not shown on slide show) and
  detail drawings of a gate hinge are shown.
• Using the sizes from the detail drawings, draw,
  in the position given
• A complete Plan of the assembled hinge, and
  (DA6)
• A Sectional Elevation of the assembly on XX.
  (DA10)
• Show hidden detail in the Plan only

X
X
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GC Credit Paper 2002 Question 9

• Start by drawing the highest part of the
  assembly.
• This would mean drawing the left hand side of the
  Plan first.

X
X

• When this has been done draw the second top part
  of the assembly (in the case of this question
  this refers to the pin and has already been
  included in the given part Plan.

• Finish constructing the Plan by drawing the
  lowest part of the assembly. This part will
  include lines hidden by the top parts of the
  assembly.

• Finally darken the outlines to complete the Plan
  view.

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GC Credit Paper 2002 Question 9

• To draw the Sectional Elevation, project the
  position down from the Plan and complete the
  crate for the view to fit in to.

• Take each part individually and draw the outline
  where the cutting plane cuts the part. In this
  case the right hand part of the assembly has been
  drawn first.

• As nothing will hide any of these lines they can
  be darkened at this stage to make the drawing
  clearer to understand.

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GC Credit Paper 2002 Question 9

• The second part of the assembly to be added to
  the Sectional Elevation is the pin.

• When this has been located, darken the outlines
  to make the view easier to read.

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GC Credit Paper 2002 Question 9

• Finally draw the last part of the assembly in the
  section and darken any outlines.

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GC Credit Paper 2002 Question 9

• As the question asks that hidden lines are not
  added to this view, there is only one further
  task to do to complete the section view.
• Any sectioned view should show where the object
  has been cut, and this is done by cross
  hatching any cut surfaces.
• Cross hatch each full part in the same direction
  and at the same angle.

• Each of the other parts should be cross hatched
  at a different angle to that already used.

• Parts such as webs, pins, bolts, etc. do not
  become cross hatched, so in this case only two
  parts need to be done.

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GC Credit Paper 2002 Question 9

• The finished drawing should look like this.

X
X
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GC Credit Paper 2002 Question 9

• This drawing was awarded 16 Drawing Ability
  marks.
• The following slides show the official marking
  scheme for this drawing.

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GC Credit Paper 2002 Question 9The Marking
Scheme box a

• Correct length of assembled parts on Plan.
• 1 mark

X
X
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GC Credit Paper 2002 Question 9The Marking
Scheme box b

• Drawing semi circle (full) on Plan.
• 1 mark

X
X
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GC Credit Paper 2002 Question 9The Marking
Scheme box c

• Drawing semi circle (hidden) on Plan.
• 1 mark

X
X
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GC Credit Paper 2002 Question 9The Marking
Scheme box d

• Vertical line showing correct width of upright on
  Plan.
• 1 mark

X
X
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GC Credit Paper 2002 Question 9The Marking
Scheme box e

• Draw two horizontal lines to show width of
  fillets on Plan.
• 1 mark

X
X
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GC Credit Paper 2002 Question 9The Marking
Scheme box f

• Draw two horizontal hidden lines on Plan to show
  size of fixing holes at right side of assembly.
• 1 mark

X
X
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GC Credit Paper 2002 Question 9The Marking
Scheme box g

• Draw vertical lines on left part of assembly on
  sectional view.
• 1 mark

X
X
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GC Credit Paper 2002 Question 9The Marking
Scheme box h

• Drawing horizontal lines of left part of assembly
  on sectional view.
• 1 mark

X
X
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GC Credit Paper 2002 Question 9The Marking
Scheme box i

• Draw vertical lines on right part of assembly on
  sectional view.
• 1 mark

X
X
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GC Credit Paper 2002 Question 9The Marking
Scheme box j

• Drawing horizontal lines of right part of
  assembly on sectional view.
• 1 mark

X
X
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GC Credit Paper 2002 Question 9The Marking
Scheme box k

• Draw two holes on right hand part of assembly.
• 1 mark

X
X
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GC Credit Paper 2002 Question 9The Marking
Scheme box l

• Draw hinge pin in sectional view.
• 2 marks

X
X
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GC Credit Paper 2002 Question 9The Marking
Scheme box m

• Sectioning of both parts of the assembly.
• 2 marks

X
X
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GC Credit Paper 2002 Question 9The Marking
Scheme box n

• Correct sectioning conventions shown
• 1 mark

X
X
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PowerPoint Presentation. 2003