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Junior Cycle · Junior Cycle Graphics

Junior Cycle Graphics: Isometric & oblique drawing

How often Isometric & oblique drawing comes up on the Graphics papers, every year it was asked, and questions to try.

CL Asked on 2 of the last 5 Common Level papers, most recently in 2025.

Isometric & oblique drawing, Common Level(6 marks)

Quick ones on Isometric & oblique drawing.

(a)In oblique drawing, which face is drawn at its true shape?
  1. The top face
  2. The front face
  3. The receding side face
(b)In isometric drawing, horizontal edges are drawn at what angle to the horizontal?
  1. 60°
  2. 45°
  3. 30°
(c)In cabinet oblique drawing, the receding (depth) lines are drawn at?
  1. Half their true length
  2. Twice their true length
  3. Their full true length
Show the answers

(a) The front face

(b) 30°

(c) Half their true length

Your turn: Common Level questions on Isometric & oblique drawing.

Common Level

Asked on 2 of the last 5 Common Level papers, most recently in 2025.

Every paper, year by year

YearWhere it came up
2026Not asked
2025Q2c
2024Not asked
2023Not asked
2022Q2b, Q5b

Links open the State Examinations Commission’s paper for that year.

More Isometric & oblique drawing questions

Isometric & oblique drawing, 3 marks

Which lines in an isometric drawing can NOT be measured at true length?

  1. Vertical lines
  2. Lines along the 30° axes
  3. Sloping lines not on an axis
Show the answer

Sloping lines not on an axis

Only lines parallel to the three isometric axes are true length. Sloping (non-isometric) lines are found by plotting their end points along the axes, then joining them.

Isometric & oblique drawing, 3 marks

An object has a round hole in one face. Why make that face the front in an oblique drawing?

  1. The hole can then be left out of the view
  2. The hole stays a true circle
  3. The hole becomes an ellipse
Show the answer

The hole stays a true circle

The front face in oblique is true shape, so circles can be drawn with a compass. On a receding face they would distort into ellipses, which are harder to draw.

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