Q. The main advantage of having small focal spot on an X ray tube is:

(A) Heat is conducted away more efficiently than with a large focal spot
(B) A smaller focal spot is unlikely to be damaged from the required tube currents
(C) Longer tube life
(D) A smaller focal spot allows sharper radiographic images than does a larger

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✅ Correct Answer: (D) A smaller focal spot allows sharper radiographic images than does a larger

Published by Mr. Dubey ⭐ 111.54K Points at 21-Sep-2023 07:18 pm in Non Destructive Testing and Evaluation

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