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Junior Cycle · Junior Cycle Graphics

Junior Cycle Graphics: Orthographic projection

How often Orthographic projection comes up on the Graphics papers, every year it was asked, and questions to try.

CL Asked on 5 of the last 5 Common Level papers, most recently in 2026. banker

Orthographic projection, Common Level(6 marks)

Quick ones on Orthographic projection.

(a)In first-angle projection, where is the plan drawn?
  1. Directly above the elevation
  2. Directly below the elevation
  3. To the left of the end view
(b)Which orthographic view do you get by looking straight down on an object?
  1. End view
  2. Elevation
  3. Plan
(c)A cylinder stands upright on one end. What shape is its plan?
  1. A circle
  2. An ellipse
  3. A rectangle
Show the answers

(a) Directly below the elevation

(b) Plan

(c) A circle

Your turn: Common Level questions on Orthographic projection.

Common Level

Asked on 5 of the last 5 Common Level papers, most recently in 2026. banker

Every paper, year by year

YearWhere it came up
2026Q3d, Q3e
2025Q1b, Q3f, Q4c, Q5d
2024Q3d, Q3e, Q4a, Q5a, Q5c
2023Q2a, Q3d
2022Q2b, Q3e, Q6a

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

More Orthographic projection questions

Orthographic projection, 3 marks

A hole goes right through a block but is hidden in the elevation. How is it shown there?

  1. A circle with two centre lines
  2. Two thick lines with hatching
  3. Two dashed lines and a centre line
Show the answer

Two dashed lines and a centre line

Hidden edges are dashed, so each side of the hole becomes a dashed line, with a chain line for its axis. The circle appears in the view that looks into the hole.

Orthographic projection, 3 marks

Which size is shared by the elevation and the end view beside it?

  1. Depth
  2. Height
  3. Length
Show the answer

Height

Elevation and end view sit side by side and are projected across with horizontal lines, so every height matches. That is why they must line up level.

Orthographic projection, 3 marks

In orthographic projection, what is a 45° line used for?

  1. Carrying depths from plan to end view
  2. Finding the true length of an edge
  3. Setting out a chamfer on the plan view
Show the answer

Carrying depths from plan to end view

Depths in the plan are carried across to the 45° line and turned into the end view, so plan and end view match. Compass arcs can do the same job.

Other Graphics topics

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