E6E05:Which of the following noise figure values is typical of a low-noise UHF preamplifier?

Direct answer summary (2024-2028 NCVEC pool)

The official correct answer for E6E05 is 0.5 dB.

The key fact is 0.5 dB. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.