Moneys heretofore or hereafter appropriated shall be used only for the purposes for which appropriated, and moneys received by the Administrator in trust shall be used only for carrying out such trust. The provisions of chapter
91 of title
31 shall be applicable to the Administrator in the same manner as they are applied to the wholly owned Government corporations named in section
9101 of title
31, but nothing in section
9105
(d) of title
31 shall be construed as affecting the powers granted in subsection (b)(11) of this section and in sections
832a
(f),
832i
(b), and
832k
(a) of this title.