Q:
Which of the following statements regarding the radius of a crank (of a reciprocating steam engine) is true?
A) Thrice the radius of the crank is equal to the stroke of the piston
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B) One-third the radius of the crank is equal to the stroke of the piston
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C) Twice the radius of the crank is equal to the stroke of the piston
| D) half the radius of the crank is equal to the stroke of the piston
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Explanation