AG Mechanics CDE Practice Exam

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Prepare for the AG Mechanics CDE Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

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How many revolutions does a crankshaft make to each power stroke of the engine?

  1. 1

  2. 2

  3. 4

  4. 8

The correct answer is: 2

The crankshaft is a component of the engine that converts the linear motion of the pistons to rotational motion, which is used to power the vehicle. In a four-stroke engine, the crankshaft makes two complete revolutions to each power stroke. This is because the four-stroke process (intake, compression, power, and exhaust) requires two rotations of the crankshaft to complete. Option A and D are incorrect because one and eight revolutions, respectively, are not enough to complete the four-stroke process. Option C is incorrect because four revolutions would be too many for one power stroke. Therefore, the correct answer is B, two revolutions per power stroke.

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