The GATE Grind

GATE 2022 ME (ME1) – Question 20

Metrology and Inspection · Limits, fits and tolerances · 1 mark · Multiple choice

The type of fit between a mating shaft of diameter $25.0^{+0.010}_{-0.010}$ mm and a hole of diameter $25.015^{+0.015}_{-0.015}$ mm is __________.

  1. Clearance
  2. Transition
  3. Interference
  4. Linear

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Show answer and explanation

Correct answer: (B) Transition

Explanation

The shaft ranges from 24.990 to 25.010 mm and the hole from 25.000 to 25.030 mm. The largest clearance is $25.030 - 24.990 = 0.040$ mm, and the smallest 'clearance' is $25.000 - 25.010 = -0.010$ mm (an interference). The fit can give either, so it is a transition fit.