California Registered Dental Assistant (RDA) Written Practice Exam

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Prepare effectively for the California Registered Dental Assistant (RDA) Written Exam. Utilize our comprehensive quizzes and resources, featuring multiple-choice questions that enhance your understanding and readiness for the exam!

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The target in the x-ray machine housing is made of what material?

Copper
Aluminum
Silver
Tungsten

The correct answer is: Tungsten

Tungsten is used as the target material in an x-ray machine because of its high atomic weight and melting point, making it effective in producing high-energy x-rays. Copper and silver have lower melting points and atomic weights, making them less efficient as target materials. Aluminum is also not an ideal target material as it absorbs x-rays rather than producing them.