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Which one of the following is not an engine bearing requirement?

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in Automotive Engine Design by (137k points)
Which one of the following is not an engine bearing requirement?

(a) Corrosion resistance

(b) Long life

(c) Should multiple the variation of the shafts

(d) Should have score  resistance

I had been asked this question in semester exam.

My question comes from Valve Timing Technologies topic in portion Valve Timing Technologies of Automotive Engine Design

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The correct option is (c) Should multiple the variation of the shafts

For explanation I would say: The engine bearing requirements are: they should have a long life, the bearing should have score resistance that prevents the bearing material from seizing to the shaft, corrosion resistance. Whereas the bearing has to have the ability to flow slightly to match the small variations in the shaft and not to multiply the variations.

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