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Find the range of axial thickness of the piston ring, when b=7.5mm?

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Find the range of axial thickness of the piston ring, when b=7.5mm?

(a) 3.5 to 4mm

(b) 4.6 to 3mm

(c) 5.78 to 8.4mm

(d) 5.25 to 7.5mm

The question was asked in an interview.

The above asked question is from IC Engine in division Design of IC Engine Components of Automotive Engine Design

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Right answer is (d) 5.25 to 7.5mm

Explanation: The axial thickness of the piston ring is given by h=0.7b to b

= 0.7×7.5 to 7.5

= 5.25 to 7.5mm

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