(Refer to figure 53.) What service is indicated by the inverse “H” symbol in the radio aids to navigation box for PRB VORTAC?

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(Refer to figure 5.) What is the meaning of the symbol depicted as used on the U.S. Low-Level Significant Weather Prog Chart?

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(Refer to figure 7.) What weather conditions are depicted within the area indicated by arrow B?

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The station originating the following weather report has a field elevation of 1,300 feet MSL. From the bottom of the overcast cloud layer, what is its thickness?

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(tops of OVC are reported at 3800 feet) SPECI KOKC 2228Z 28024G36KT 3/4SM BKN008 OVC020 28/23 A3000