Multiple choice general knowledge science & technology

If a hole in a disc is 10 mm +0.050 and -0.020 what should be the shaft dimension which will have minimum clearance of 0.018 mm and maximum clearance of 0.110 mm?

  1. 9.870 and 10.032

  2. 9.982 and 9.890

  3. 9.870 and 9.962

  4. 9.940 and 9.962
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hole: 10mm (+0.050, -0.020) = 9.980 to 10.050 mm. For clearance 0.018 to 0.110 mm: Shaft max = Hole max - 0.018 = 10.050 - 0.018 = 10.032, Shaft min = Hole min - 0.110 = 9.980 - 0.110 = 9.870. But this doesn't match any option. Rechecking with shaft dimensions: Option D (9.940 to 9.962) gives clearance range of (9.980-9.962=0.018) to (10.050-9.940=0.110), which matches requirements.

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