ASNT NDT III RT Practice Questions - ASNT NDT Level III Radiographic Testing (RT) Exam

Cobalt-60 emits two principal gamma rays. What are their approximate energies?

0.40 MeV and 0.60 MeV 0.66 MeV (single) 1.17 MeV and 1.33 MeV 2.20 MeV and 2.50 MeV

Correct Answer:

1.17 MeV and 1.33 MeV

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