Question 82Motor Plants - 1st Asst/Chief
70% to passWhat could cause the bypass valve in a full-flow lubrication system to open?
ABypass valve setting is too high
BFuel dilution of the lubricant
CCheck valve stuck open
DClogged filter element
AI Explanation
The correct answer is D) Clogged filter element. In a full-flow lubrication system, the bypass valve is designed to open when the filter element becomes clogged, which increases the pressure drop across the filter. This allows the lubricating oil to bypass the filter and continue circulating through the engine, preventing a sudden loss of oil pressure that could damage the engine. The other answer choices are incorrect because they do not directly relate to the bypass valve opening in a full-flow lubrication system.
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