Friddle: What is the term for a 4-stroke internal combustion piston engine in which one or more
valves in the fully open position extend into any area that a piston may travel into?
Check our blog next Friday for the answer and another Friddle.
Last Week’s Friddle: Which U.S. state uses the license plate slogan "The Spirit of America"?
Last Week’s Friddle Answer: Massachusetts
Last Week’s Friddle Contest Winner: No Winner
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