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Junior Cycle Applied Technology: Bearings, couplings & friction

How often Bearings, couplings & friction comes up on the Applied Technology 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

Bearings, couplings & friction, Common Level(6 marks)

Quick ones on Bearings, couplings & friction.

(a)A Lazy Susan bearing is best suited to?
  1. Joining two shafts at an angle
  2. A flat turntable that spins round
  3. Stopping a wheel from turning
(b)A trolley has castor wheels at the front. Why?
  1. They make it roll much faster on carpet
  2. They lock it so it cannot roll
  3. They swivel so it can turn any way
(c)What is a universal joint used for?
  1. Joining shafts that meet at an angle
  2. Reducing a motor's speed
  3. Changing rotary into linear motion
Show the answers

(a) A flat turntable that spins round

(b) They swivel so it can turn any way

(c) Joining shafts that meet at an angle

Your turn: Common Level questions on Bearings, couplings & friction.

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
2026Q2b(iv)
2025Q2c(iv), Q3c(i)
2024Q1a(iii), Q4a(iii)
2023Q1e(i), Q1e(ii), Q1e(iii)
2022Q1f(i)

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

More Bearings, couplings & friction questions

Bearings, couplings & friction, 3 marks

In which place is friction useful rather than a problem?

  1. Between a shaft and its bearing
  2. Between meshing gear teeth
  3. Between a tyre and the road
Show the answer

Between a tyre and the road

Tyres need friction (grip) to drive, steer and brake. In bearings and gears friction only wastes energy as heat and causes wear, so they are oiled or greased.

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