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Junior Cycle · Junior Cycle Engineering

Junior Cycle Engineering: Marking out & measuring

How often Marking out & measuring comes up on the Engineering papers, every year it was asked, and questions to try.

CL Asked on 3 of the last 5 Common Level papers, most recently in 2026. most years

Marking out & measuring, Common Level(7 marks)

Quick ones on Marking out & measuring.

(a)Why is marking blue (layout ink) painted on metal before marking out?
  1. So the metal does not rust later
  2. So scribed lines show up clearly
  3. So the metal is easier to cut
(b)Why is a centre punch used before drilling a hole in steel?
  1. It hardens the metal around the hole
  2. It marks the full size of the hole
  3. It makes a dent so the drill does not wander
(c)Which tool scribes a line parallel to the straight edge of a metal plate?
  1. Odd-leg callipers
  2. Dividers
  3. Outside callipers
Show the answers

(a) So scribed lines show up clearly

(b) It makes a dent so the drill does not wander

(c) Odd-leg callipers

Your turn: Common Level questions on Marking out & measuring.

Common Level

Asked on 3 of the last 5 Common Level papers, most recently in 2026. most years

Every paper, year by year

YearWhere it came up
2026Q3b, Q4d
2025Not asked
2024Not asked
2023Q2b
2022Q3a

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

More Marking out & measuring questions

Marking out & measuring, 2 marks

Which tool checks that two edges of a metal part meet at exactly 90 degrees?

  1. Dividers
  2. Centre punch
  3. Try square
Show the answer

Try square

Hold the stock of the try square against one edge and look for light between the blade and the other edge. No light means the corner is square. It also guides the scriber for 90° lines.

Other Engineering topics

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