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The displacement of the D-slide valve is ______________ the steam lap by a distance known as lead of the valve.

(a) greater than

(b) less than

(c) equal to

(d) none of the mentioned

The question was asked during an interview for a job.

I would like to ask this question from Steam Engine Valves and Reversing Gears topic in chapter Steam Engine Valves and Reversing Gears of Machine Dynamics

1 Answer

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by (38.6k points)
Right choice is (a) greater than

Easiest explanation: In actual practise, the displacement of the D-slide valve is greater than the steam lap by a distance known as lead of the valve.

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