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Calculate the mean diameter of the piston boss for aluminum alloy piston, when do=50mm?

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in Automotive Engine Design by (137k points)
Calculate the mean diameter of the piston boss for aluminum alloy piston, when do=50mm?

(a) 60mm

(b) 70mm

(c) 80mm

(d) 90mm

The question was asked during a job interview.

The origin of the question is IC Engine topic in portion Design of IC Engine Components of Automotive Engine Design

1 Answer

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Best answer
Correct option is (c) 80mm

Best explanation: Mean diameter of piston bosses di=1.6×d0

                                                                                     = 1.6×50

                                                                                     = 80mm

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