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- Q531 - Motor Plants I
43. A diesel engine cylinder has a swept volume of 125 cubic inches and a compression ratio of 13.5 to 1. What is the clearance volume in the cylinder at top dead center?
The clearance volume is calculated using the formula CR = (Vs + Vc) / Vc, where CR is the compression ratio, Vs is the swept volume, and Vc is the clearance volume. Solving for Vc, we get Vc = Vs / (CR — 1). Substituting the given values, Vc = 125 / (13.5 — 1) = 125 / 12.5 = 10 cubic inches.
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