Elevator Mechanic Practice Exam

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Prepare for the Elevator Mechanic Exam with comprehensive quizzes, flashcards, and multiple-choice questions. Each question includes hints and detailed explanations to ensure you are ready for your exam!

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What is the formula to find the area of a 10" plunger?

Diameter x Radius
Pie x Diameter
Pie x Radius Squared
Radius x Diameter Squared

The correct answer is: Diameter x Radius

The correct formula to find the area of a circle, such as that of a plunger with a diameter of 10 inches, employs pi and the radius. Specifically, the area is calculated using the formula pi (π) multiplied by the radius squared. Given that the radius is half the diameter, you would first convert the diameter into the radius, which in this case is 5 inches. The area calculation would then be π times 5 squared, yielding the final area. Therefore, the answer provided reflects a misunderstanding of the area formula for a circle. The area is not found by simply multiplying diameter by radius; it centers on the squared value of the radius.